• Connection String Options

Connection String OptionsBack To Top

1. AuthScheme
2. APIKey
3. Spreadsheet
4. FolderName
5. FolderId
6. ShowTrashedFiles
7. TeamDriveSupport
8. UseIdAsTableName
9. TeamDrive
10. DomainSharedFilesOnly
11. RecurseFolders
12. IgnoreErrorValues
13. InitiateOAuth
14. OAuthClientId
15. OAuthClientSecret
16. OAuthAccessToken
17. OAuthSettingsLocation
18. CallbackURL
19. OAuthVerifier
20. OAuthRefreshToken
21. OAuthExpiresIn
22. OAuthTokenTimestamp
23. OAuthJWTCert
24. OAuthJWTCertType
25. OAuthJWTCertPassword
26. OAuthJWTCertSubject
27. OAuthJWTIssuer
28. OAuthJWTSubject
29. SSLServerCert
30. FirewallType
31. FirewallServer
32. FirewallPort
33. FirewallUser
34. FirewallPassword
35. ProxyAutoDetect
36. ProxyServer
37. ProxyPort
38. ProxyAuthScheme
39. ProxyUser
40. ProxyPassword
41. ProxySSLType
42. ProxyExceptions
43. Logfile
44. Verbosity
45. LogModules
46. MaxLogFileSize
47. MaxLogFileCount
48. Location
49. BrowsableSchemas
50. Tables
51. Views
52. TypeDetectionScheme
53. Header
54. PrimaryKeyIdentifier
55. DefineTables
56. Orientation
57. AutoCache
58. CacheDriver
59. CacheConnection
60. CacheLocation
61. CacheTolerance
62. Offline
63. CacheMetadata
64. AutoAdjustRange
65. BatchSize
66. ConnectionLifeTime
67. ConnectOnOpen
68. DateTimeRenderOption
69. InsertDataOption
70. MaxRows
71. NullValueMode
72. Other
73. Pagesize
74. PercentageToDecimal
75. PoolIdleTimeout
76. PoolMaxSize
77. PoolMinSize
78. PoolWaitTime
79. PseudoColumns
80. Readonly
81. RowScanDepth
82. RTK
83. ShowEmptyRows
84. Timeout
85. UseConnectionPooling
86. UserDefinedViews
87. UseSimpleNames
88. ValueInputOption
89. ValueRenderOption

AuthScheme

Data Type

string

Default Value

"Auto"

Remarks

• Auto: Lets the driver decide automatically based on the other connection properties you have set.
• Token: Set this to perform Token Based Authentication via the APIKey property.
• OAuth: Set this to perform OAuth authentication using a standard user account.
• OAuthJWT: Set this to perform OAuth authentication using an OAuth service account.
• GCPInstanceAccount: Set this to get Access Token from Google Cloud Platform instance.

APIKey

Data Type

string

Default Value

""

Remarks

If your client application does not use OAuth 2.0, then it must include an API key when it calls an API that's enabled within a Google Cloud Platform project.

Spreadsheet

Data Type

string

Default Value

""

Remarks

A comma-separated list of the names or Ids of the spreadsheets to be viewed. Query the Spreadsheets view to retrieve this data.

Note: In case you are providing the names of the spreadsheets, make sure to provide the exact spreadsheet name, including the leading and/or trailing spaces. Also, you should not add extra spaces before and after the comma separator. If any of the spreadsheet names includes a comma, escape it by using a backslash '\'.

FolderName

Data Type

string

Default Value

""

Remarks

A comma separated list of the folders' names from which to retrieve spreadsheets in the format FolderName='name1,name2'.

FolderId

Data Type

string

Default Value

""

Remarks

A comma separated list of the folders' ids from which to retrieve spreadsheets in the format FolderId='id1,id2,id3'.

ShowTrashedFiles

Data Type

bool

Default Value

false

Remarks

If true, the driver will list the files/spreadsheets that have been trashed.

TeamDriveSupport

Data Type

bool

Default Value

false

Remarks

If you set this property to 'true', you can query from any Team Drive spreadsheets.

UseIdAsTableName

Data Type

bool

Default Value

false

Remarks

Indicates whether or not to use Ids as Spreadsheet and Sheet name. To select in a sheet instead of SpreadsheetName_SheetName use: SpreadsheetId_SheetId. Ex: SELECT * FROM 11696gdF5QUL1EnYikYiUeMTHRqA1111KbdYDoINqI_1151117664

TeamDrive

Data Type

string

Default Value

""

Remarks

A drive's names or ids from which to retrieve spreadsheets in the format TeamDrive='Shared drive 2, Shared drive 3', or TeamDrive='0BKwyFj1j9FOsUk9EVO, 0ANMIP9RIe1LQUk9PVA'.

DomainSharedFilesOnly

Data Type

bool

Default Value

false

Remarks

If true, the driver will retrieve and expose only the sheets shared to the user's domain, excluding the sheets owned by the user. If false, the driver will retrieve both, the files owned by and shared to the user.

RecurseFolders

Data Type

string

Default Value

"false"

Remarks

Used in case FolderId/FolderName properties are defined. If set to True this makes the driver return all the Spreadsheets inside nested folders, else the driver will return only the files directly to that foder. By default this is set to false.

IgnoreErrorValues

Data Type

bool

Default Value

true

Remarks

When reading the data, we throw an exception or ignore the formula error based on IgnoreErrorValues=True/False.

InitiateOAuth

Data Type

string

Default Value

"OFF"

Remarks

The following options are available:

1. OFF: Indicates that the OAuth flow will be handled entirely by the user. An OAuthAccessToken will be required to authenticate.
2. GETANDREFRESH: Indicates that the entire OAuth Flow will be handled by the driver. If no token currently exists, it will be obtained by prompting the user via the browser. If a token exists, it will be refreshed when applicable.
3. REFRESH: Indicates that the driver will only handle refreshing the OAuthAccessToken. The user will never be prompted by the driver to authenticate via the browser. The user must handle obtaining the OAuthAccessToken and OAuthRefreshToken initially.

OAuthClientId

Data Type

string

Default Value

""

Remarks

As part of registering an OAuth application, you will receive the OAuthClientId value, sometimes also called a consumer key, and a client secret, the OAuthClientSecret.

OAuthClientSecret

Data Type

string

Default Value

""

Remarks

As part of registering an OAuth application, you will receive the OAuthClientId, also called a consumer key. You will also receive a client secret, also called a consumer secret. Set the client secret in the OAuthClientSecret property.

OAuthAccessToken

Data Type

string

Default Value

""

Remarks

The OAuthAccessToken property is used to connect using OAuth. The OAuthAccessToken is retrieved from the OAuth server as part of the authentication process. It has a server-dependent timeout and can be reused between requests.

The access token is used in place of your user name and password. The access token protects your credentials by keeping them on the server.

OAuthSettingsLocation

Data Type

string

Default Value

"%APPDATA%\\CData\\GoogleSheets Data Provider\\OAuthSettings.txt"

Remarks

When InitiateOAuth is set to GETANDREFRESH or REFRESH, the driver saves OAuth values to avoid requiring the user to manually enter OAuth connection properties and allowing the credentials to be shared across connections or processes.

Alternatively to specifying a file path, memory storage can be used instead. Memory locations are specified by using a value starting with 'memory://' followed by a unique identifier for that set of credentials (ex: memory://user1). The identifier can be anything you choose but should be unique to the user. Unlike with the file based storage, you must manually store the credentials when closing the connection with memory storage to be able to set them in the connection when the process is started again. The OAuth property values can be retrieved with a query to the sys_connection_props system table. If there are multiple connections using the same credentials, the properties should be read from the last connection to be closed.

If left unspecified, the default location is "%APPDATA%\\CData\\GoogleSheets Data Provider\\OAuthSettings.txt" with %APPDATA% being set to the user's configuration directory:

CallbackURL

Data Type

string

Default Value

""

Remarks

During the authentication process, the OAuth authorization server redirects the user to this URL. This value must match the callback URL you specify in your app settings.

OAuthVerifier

Data Type

string

Default Value

""

Remarks

The verifier code returned from the OAuth authorization URL. This can be used on systems where a browser cannot be launched such as headless systems.

Authentication on Headless Machines

See Establishing a Connection to obtain the OAuthVerifier value.

Set OAuthSettingsLocation along with OAuthVerifier. When you connect, the driver exchanges the OAuthVerifier for the OAuth authentication tokens and saves them, encrypted, to the specified file. Set InitiateOAuth to GETANDREFRESH automate the exchange.

Once the OAuth settings file has been generated, you can remove OAuthVerifier from the connection properties and connect with OAuthSettingsLocation set.

To automatically refresh the OAuth token values, set OAuthSettingsLocation and additionally set InitiateOAuth to REFRESH.

OAuthRefreshToken

Data Type

string

Default Value

""

Remarks

The OAuthRefreshToken property is used to refresh the OAuthAccessToken when using OAuth authentication.

OAuthExpiresIn

Data Type

string

Default Value

""

Remarks

Pair with OAuthTokenTimestamp to determine when the AccessToken will expire.

OAuthTokenTimestamp

Data Type

string

Default Value

""

Remarks

Pair with OAuthExpiresIn to determine when the AccessToken will expire.

OAuthJWTCert

Data Type

string

Default Value

""

Remarks

The name of the certificate store for the client certificate.

The OAuthJWTCertType field specifies the type of the certificate store specified by OAuthJWTCert. If the store is password protected, specify the password in OAuthJWTCertPassword.

OAuthJWTCert is used in conjunction with the OAuthJWTCertSubject field in order to specify client certificates. If OAuthJWTCert has a value, and OAuthJWTCertSubject is set, a search for a certificate is initiated. Please refer to the OAuthJWTCertSubject field for details.

Designations of certificate stores are platform-dependent.

The following are designations of the most common User and Machine certificate stores in Windows:

In Java, the certificate store normally is a file containing certificates and optional private keys.

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e. PKCS12 certificate store).

OAuthJWTCertType

Data Type

string

Default Value

"USER"

Remarks

This property can take one of the following values:

OAuthJWTCertPassword

Data Type

string

Default Value

""

Remarks

If the certificate store is of a type that requires a password, this property is used to specify that password in order to open the certificate store.

This is not required when using the GOOGLEJSON OAuthJWTCertType. Google JSON keys are not encrypted.

OAuthJWTCertSubject

Data Type

string

Default Value

"*"

Remarks

When loading a certificate the subject is used to locate the certificate in the store.

If an exact match is not found, the store is searched for subjects containing the value of the property.

If a match is still not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks the first certificate in the certificate store.

The certificate subject is a comma separated list of distinguished name fields and values. For instance "CN=www.server.com, OU=test, C=US, E=support@cdata.com". Common fields and their meanings are displayed below.

If a field value contains a comma it must be quoted.

OAuthJWTIssuer

Data Type

string

Default Value

""

Remarks

The issuer of the Java Web Token. This is typically either the Client Id or Email Address of the OAuth Application.

This is not required when using the GOOGLEJSON OAuthJWTCertType. Google JSON keys contain a copy of the issuer account.

OAuthJWTSubject

Data Type

string

Default Value

""

Remarks

The user subject for which the application is requesting delegated access. Typically, the user account name or email address.

SSLServerCert

Data Type

string

Default Value

""

Remarks

If using a TLS/SSL connection, this property can be used to specify the TLS/SSL certificate to be accepted from the server. Any other certificate that is not trusted by the machine is rejected.

This property can take the following forms:

If not specified, any certificate trusted by the machine is accepted.

Certificates are validated as trusted by the machine based on the System's trust store. The trust store used is the 'javax.net.ssl.trustStore' value specified for the system. If no value is specified for this property, Java's default trust store is used (for example, JAVA_HOME\lib\security\cacerts).

Use '*' to signify to accept all certificates. Note that this is not recommended due to security concerns.

FirewallType

Data Type

string

Default Value

"NONE"

Remarks

This property specifies the protocol that the driver will use to tunnel traffic through the FirewallServer proxy. Note that by default, the driver connects to the system proxy; to disable this behavior and connect to one of the following proxy types, set ProxyAutoDetect to false.

To connect to HTTP proxies, use ProxyServer and ProxyPort. To authenticate to HTTP proxies, use ProxyAuthScheme, ProxyUser, and ProxyPassword.

FirewallServer

Data Type

string

Default Value

""

Remarks

This property specifies the IP address, DNS name, or host name of a proxy allowing traversal of a firewall. The protocol is specified by FirewallType: Use FirewallServer with this property to connect through SOCKS or do tunneling. Use ProxyServer to connect to an HTTP proxy.

Note that the driver uses the system proxy by default. To use a different proxy, set ProxyAutoDetect to false.

FirewallPort

Data Type

int

Default Value

0

Remarks

This specifies the TCP port for a proxy allowing traversal of a firewall. Use FirewallServer to specify the name or IP address. Specify the protocol with FirewallType.

FirewallUser

Data Type

string

Default Value

""

Remarks

The FirewallUser and FirewallPassword properties are used to authenticate against the proxy specified in FirewallServer and FirewallPort, following the authentication method specified in FirewallType.

FirewallPassword

Data Type

string

Default Value

""

Remarks

This property is passed to the proxy specified by FirewallServer and FirewallPort, following the authentication method specified by FirewallType.

ProxyAutoDetect

Data Type

bool

Default Value

false

Remarks

This takes precedence over other proxy settings, so you'll need to set ProxyAutoDetect to FALSE in order use custom proxy settings.

NOTE: When this property is set to True, the proxy used is determined as follows:

• A search from the JVM properties (http.proxy, https.proxy, socksProxy, etc.) is performed.
• In the case that the JVM properties don't exist, a search from java.home/lib/net.properties is performed.
• In the case that java.net.useSystemProxies is set to True, a search from the SystemProxy is performed.
• In Windows only, an attempt is made to retrieve these properties from the Internet Options in the registry.

To connect to an HTTP proxy, see ProxyServer. For other proxies, such as SOCKS or tunneling, see FirewallType.

ProxyServer

Data Type

string

Default Value

""

Remarks

The hostname or IP address of a proxy to route HTTP traffic through. The driver can use the HTTP, Windows (NTLM), or Kerberos authentication types to authenticate to an HTTP proxy.

If you need to connect through a SOCKS proxy or tunnel the connection, see FirewallType.

By default, the driver uses the system proxy. If you need to use another proxy, set ProxyAutoDetect to false.

ProxyPort

Data Type

int

Default Value

80

Remarks

The port the HTTP proxy is running on that you want to redirect HTTP traffic through. Specify the HTTP proxy in ProxyServer. For other proxy types, see FirewallType.

ProxyAuthScheme

Data Type

string

Default Value

"BASIC"

Remarks

This value specifies the authentication type to use to authenticate to the HTTP proxy specified by ProxyServer and ProxyPort.

Note that the driver will use the system proxy settings by default, without further configuration needed; if you want to connect to another proxy, you will need to set ProxyAutoDetect to false, in addition to ProxyServer and ProxyPort. To authenticate, set ProxyAuthScheme and set ProxyUser and ProxyPassword, if needed.

The authentication type can be one of the following:

• BASIC: The driver performs HTTP BASIC authentication.
• DIGEST: The driver performs HTTP DIGEST authentication.
• NEGOTIATE: The driver retrieves an NTLM or Kerberos token based on the applicable protocol for authentication.
• PROPRIETARY: The driver does not generate an NTLM or Kerberos token. You must supply this token in the Authorization header of the HTTP request.

If you need to use another authentication type, such as SOCKS 5 authentication, see FirewallType.

ProxyUser

Data Type

string

Default Value

""

Remarks

The ProxyUser and ProxyPassword options are used to connect and authenticate against the HTTP proxy specified in ProxyServer.

You can select one of the available authentication types in ProxyAuthScheme. If you are using HTTP authentication, set this to the user name of a user recognized by the HTTP proxy. If you are using Windows or Kerberos authentication, set this property to a user name in one of the following formats:

user@domain

domain\user

ProxyPassword

Data Type

string

Default Value

""

Remarks

This property is used to authenticate to an HTTP proxy server that supports NTLM (Windows), Kerberos, or HTTP authentication. To specify the HTTP proxy, you can set ProxyServer and ProxyPort. To specify the authentication type, set ProxyAuthScheme.

If you are using HTTP authentication, additionally set ProxyUser and ProxyPassword to HTTP proxy.

If you are using NTLM authentication, set ProxyUser and ProxyPassword to your Windows password. You may also need these to complete Kerberos authentication.

For SOCKS 5 authentication or tunneling, see FirewallType.

By default, the driver uses the system proxy. If you want to connect to another proxy, set ProxyAutoDetect to false.

ProxySSLType

Data Type

string

Default Value

"AUTO"

Remarks

This property determines when to use SSL for the connection to an HTTP proxy specified by ProxyServer. This value can be AUTO, ALWAYS, NEVER, or TUNNEL. The applicable values are the following:

ProxyExceptions

Data Type

string

Default Value

""

Remarks

The ProxyServer is used for all addresses, except for addresses defined in this property. Use semicolons to separate entries.

Note that the driver uses the system proxy settings by default, without further configuration needed; if you want to explicitly configure proxy exceptions for this connection, you need to set ProxyAutoDetect = false, and configure ProxyServer and ProxyPort. To authenticate, set ProxyAuthScheme and set ProxyUser and ProxyPassword, if needed.

Logfile

Data Type

string

Default Value

""

Remarks

Once this property is set, the driver will populate the log file as it carries out various tasks, such as when authentication is performed or queries are executed. If the specified file doesn't already exist, it will be created.

Connection strings and version information are also logged, though connection properties containing sensitive information are masked automatically.

If a relative filepath is supplied, the location of the log file will be resolved based on the path found in the Location connection property.

For more control over what is written to the log file, you can adjust the Verbosity property.

Log contents are categorized into several modules. You can show/hide individual modules using the LogModules property.

To edit the maximum size of a single logfile before a new one is created, see MaxLogFileSize.

If you would like to place a cap on the number of logfiles generated, use MaxLogFileCount.

Java Logging

Java logging is also supported. To enable Java logging, set Logfile to:

Logfile=JAVALOG://myloggername

As in the above sample, JAVALOG:// is a required prefix to use Java logging, and you will substitute your own Logger.

The supplied Logger's getLogger method is then called, using the supplied value to create the Logger instance. If a logging instance already exists, it will reference the existing instance.

When Java logging is enabled, the Verbosity will now correspond to specific logging levels.

Verbosity

Data Type

string

Default Value

"1"

Remarks

The verbosity level determines the amount of detail that the driver reports to the Logfile. Verbosity levels from 1 to 5 are supported. These are detailed in the Logging page.

LogModules

Data Type

string

Default Value

""

Remarks

Only the modules specified (separated by ';') will be included in the log file. By default all modules are included.

See the Logging page for an overview.

MaxLogFileSize

Data Type

string

Default Value

"100MB"

Remarks

When the limit is hit, a new log is created in the same folder with the date and time appended to the end. The default limit is 100 MB. Values lower than 100 kB will use 100 kB as the value instead.

Adjust the maximum number of logfiles generated with MaxLogFileCount.

MaxLogFileCount

Data Type

int

Default Value

-1

Remarks

When the limit is hit, a new log is created in the same folder with the date and time appended to the end and the oldest log file will be deleted.

The minimum supported value is 2. A value of 0 or a negative value indicates no limit on the count.

Adjust the maximum size of the logfiles generated with MaxLogFileSize.

Location

Data Type

string

Default Value

"%APPDATA%\\CData\\GoogleSheets Data Provider\\Schema"

Remarks

The path to a directory which contains the schema files for the driver (.rsd files for tables and views, .rsb files for stored procedures). The folder location can be a relative path from the location of the executable. The Location property is only needed if you want to customize definitions (for example, change a column name, ignore a column, and so on) or extend the data model with new tables, views, or stored procedures.

If left unspecified, the default location is "%APPDATA%\\CData\\GoogleSheets Data Provider\\Schema" with %APPDATA% being set to the user's configuration directory:

BrowsableSchemas

Data Type

string

Default Value

""

Remarks

Listing the schemas from databases can be expensive. Providing a list of schemas in the connection string improves the performance.

Tables

Data Type

string

Default Value

""

Remarks

Listing the tables from some databases can be expensive. Providing a list of tables in the connection string improves the performance of the driver.

This property can also be used as an alternative to automatically listing views if you already know which ones you want to work with and there would otherwise be too many to work with.

Specify the tables you want in a comma-separated list. Each table should be a valid SQL identifier with any special characters escaped using square brackets, double-quotes or backticks. For example, Tables=TableA,[TableB/WithSlash],WithCatalog.WithSchema.`TableC With Space`.

Note that when connecting to a data source with multiple schemas or catalogs, you will need to provide the fully qualified name of the table in this property, as in the last example here, to avoid ambiguity between tables that exist in multiple catalogs or schemas.

Views

Data Type

string

Default Value

""

Remarks

Listing the views from some databases can be expensive. Providing a list of views in the connection string improves the performance of the driver.

This property can also be used as an alternative to automatically listing views if you already know which ones you want to work with and there would otherwise be too many to work with.

Specify the views you want in a comma-separated list. Each view should be a valid SQL identifier with any special characters escaped using square brackets, double-quotes or backticks. For example, Views=ViewA,[ViewB/WithSlash],WithCatalog.WithSchema.`ViewC With Space`.

Note that when connecting to a data source with multiple schemas or catalogs, you will need to provide the fully qualified name of the table in this property, as in the last example here, to avoid ambiguity between tables that exist in multiple catalogs or schemas.

TypeDetectionScheme

Data Type

string

Default Value

"RowScan"

Remarks

Header

Data Type

bool

Default Value

true

Remarks

If true, the first row will be used as a column header. Otherwise, the pseudo column names (A, B, C, etc.) will be used.

The Header property is used in conjunction with the Orientation property. When Header is set to false and Orientation is set to Columns, column names are reported as R1, R2, R3, etc.

PrimaryKeyIdentifier

Data Type

string

Default Value

""

Remarks

Determines the name of the primary key column which holds the row number. The default value of the primary key is Id.

Set this property if there is a column named ID in the table you are quering, or if you prefer to change the name of the primary key.

DefineTables

Data Type

string

Default Value

""

Remarks

This property is used to define the ranges within a sheet that will appear as tables. The value is a comma-separated list of name-value pairs in the form [Table Name]=[Spreadsheet Name]_[Sheet Name]![Range] or [Table Name]=[Spreadsheet Name]_[Sheet Name]![Range]. Table Name is the name of the table you want to use for the data and will be used when issuing queries. Sheet Name is the name of the sheet within the Google Spreadsheet and Range is the range of cells that contain the data for the table.

Here is an example DefineTables value: DefineTables="Table1=Spreadsheet1_Sheet1!A1:N25,Table2=Spreadsheet1_Sheet2!C3:M53,Table4=xIsPcLs2-bF3AavQcSLCfzs3kGc_Sheet4!C20:N60".

Orientation

Data Type

string

Default Value

"Vertical"

Remarks

By default, the driver models vertically oriented spreadsheet data -- rows arranged vertically below a header row.

Set this to "Horizontal" if the rows are arranged left to right. The first column contains the column names and subsequent columns become rows.

AutoCache

Data Type

bool

Default Value

false

Remarks

When AutoCache = true, the driver automatically maintains a cache of your table's data in the database of your choice.

Setting the Caching Database

When AutoCache = true, the driver caches to a simple, file-based cache. You can configure its location or cache to a different database with the following properties:

• CacheLocation: Specifies the path to the file store.
• CacheDriver and CacheConnection: Specifies a driver to a database and the connection string.

See Also

• CacheMetadata: This property reduces the amount of metadata that crosses the network by persisting table schemas retrieved from the Google Sheets metadata. Metadata then needs to be retrieved only once instead of every connection.
• Explicitly Caching Data: This section provides more examples of using AutoCache in Offline mode.
• CACHE Statements: You can use the CACHE statement to persist any SELECT query, as well as manage the cache; for example, refreshing schemas.

CacheDriver

Data Type

string

Default Value

""

Remarks

You can cache to any database for which you have a JDBC driver, including CData JDBC drivers.

The cache database is determined by the CacheDriver and CacheConnection properties. The CacheDriver is the name of the JDBC driver class that you want to use to cache data.

Note: you must add the CacheDriver JAR file to the classpath.

Examples

Derby and Java DB

The driver simplifies Derby configuration. Java DB is the Oracle distribution of Derby. The JAR file is shipped in the JDK. You can find the JAR file, derby.jar, in the db subfolder of the JDK installation. In most caching scenarios, you need to specify only the following, after adding derby.jar to the classpath:

jdbc:googlesheets:CacheLocation='c:/Temp/cachedir';InitiateOAuth=GETANDREFRESH;Spreadsheet=NorthwindOrders

jdbc:googlesheets:CacheDriver=org.apache.derby.jdbc.EmbeddedDriver;CacheConnection='jdbc:derby:memory';InitiateOAuth=GETANDREFRESH;Spreadsheet=NorthwindOrders

SQLite

The following is a JDBC URL for the SQLite JDBC driver:

jdbc:googlesheets:CacheDriver=org.sqlite.JDBC;CacheConnection='jdbc:sqlite:C:/Temp/sqlite.db';InitiateOAuth=GETANDREFRESH;Spreadsheet=NorthwindOrders

MySQL

The following is a JDBC URL for the included CData JDBC Driver for MySQL:

  jdbc:googlesheets:Cache Driver=cdata.jdbc.mysql.MySQLDriver;Cache Connection='jdbc:mysql:Server=localhost;Port=3306;Database=cache;User=root;Password=123456';InitiateOAuth=GETANDREFRESH;Spreadsheet=NorthwindOrders

  

SQL Server

The following JDBC URL uses the Microsoft JDBC Driver for SQL Server:

jdbc:googlesheets:Cache Driver=com.microsoft.sqlserver.jdbc.SQLServerDriver;Cache Connection='jdbc:sqlserver://localhost\sqlexpress:7437;user=sa;password=123456;databaseName=Cache';InitiateOAuth=GETANDREFRESH;Spreadsheet=NorthwindOrders

Oracle

The following is a JDBC URL for the Oracle Thin Client:

jdbc:googlesheets:Cache Driver=oracle.jdbc.OracleDriver;CacheConnection='jdbc:oracle:thin:scott/tiger@localhost:1521:orcldb';InitiateOAuth=GETANDREFRESH;Spreadsheet=NorthwindOrders

PostgreSQL

The following JDBC URL uses the official PostgreSQL JDBC driver:

jdbc:googlesheets:CacheDriver=cdata.jdbc.postgresql.PostgreSQLDriver;CacheConnection='jdbc:postgresql:User=postgres;Password=admin;Database=postgres;Server=localhost;Port=5432;';InitiateOAuth=GETANDREFRESH;Spreadsheet=NorthwindOrders

CacheConnection

Data Type

string

Default Value

""

Remarks

The cache database is determined based on the CacheDriver and CacheConnection properties. Both properties are required to use the cache database. Examples of common cache database settings can be found below. For more information on setting the caching database's driver, refer to CacheDriver.

The connection string specified in the CacheConnection property is passed directly to the underlying CacheDriver. Consult the documentation for the specific JDBC driver for more information on the available properties. Make sure to include the JDBC driver in your application's classpath.

Derby and Java DB

The driver simplifies caching to Derby, only requiring you to set the CacheLocation property to make a basic connection.

Alternatively, you can configure the connection to Derby manually using CacheDriver and CacheConnection. The following is the Derby JDBC URL syntax:

jdbc:derby:[subsubprotocol:][databaseName][;attribute=value[;attribute=value] ... ]

jdbc:derby:memory

SQLite

To cache to SQLite, you can use the SQLite JDBC driver. The following is the syntax of the JDBC URL:

jdbc:sqlite:dataSource

• Data Source: The path to an SQLite database file. Or, use a value of :memory to cache in memory.

MySQL

The installation includes the CData JDBC Driver for MySQL. The following is an example JDBC URL:

jdbc:mysql:User=root;Password=root;Server=localhost;Port=3306;Database=cache

• Server: The IP address or domain name of the server you want to connect to.
• Port: The port that the server is running on.
• User: The user name provided for authentication to the database.
• Password: The password provided for authentication to the database.
• Database: The name of the database.

SQL Server

The JDBC URL for the Microsoft JDBC Driver for SQL Server has the following syntax:

jdbc:sqlserver://[serverName[\instance][:port]][;database=databaseName][;property=value[;property=value] ... ]

jdbc:sqlserver://localhost\sqlexpress:1433;integratedSecurity=true

• Server: The name or network address of the computer running SQL Server. To connect to a named instance instead of the default instance, this property can be used to specify the host name and the instance, separated by a backslash.
• Port: The port SQL Server is running on.
• Database: The name of the SQL Server database.
• Integrated Security: Set this option to true to use the current Windows account for authentication. Set this option to false if you are setting the User and Password in the connection.

  To use integrated security, you will also need to add sqljdbc_auth.dll to a folder on the Windows system path. This file is located in the auth subfolder of the Microsoft JDBC Driver for SQL Server installation. The bitness of the assembly must match the bitness of your JVM.

• User Id: The user name provided for authentication with SQL Server. This property is only needed if you are not using integrated security.
• Password: The password provided for authentication with SQL Server. This property is only needed if you are not using integrated security.

Oracle

The following is the conventional JDBC URL syntax for the Oracle JDBC Thin driver:

jdbc:oracle:thin:[userId/password]@[//]host[[:port][:sid]]

jdbc:oracle:thin:scott/tiger@myhost:1521:orcl

• Data Source: The connect descriptor that identifies the Oracle database. This can be a TNS connect descriptor, an Oracle Net Services name that resolves to a connect descriptor, or, after version 11g, an Easy Connect naming (the host name of the Oracle server with an optional port and service name).

• Password: The password provided for authentication with the Oracle database.
• User Id: The user Id provided for authentication with the Oracle database.

PostgreSQL

The following is the JDBC URL syntax for the official PostgreSQL JDBC driver:

jdbc:postgresql:[//[host[:port]]/]database[[?option=value][[&option=value][&option=value] ... ]]

jdbc:postgresql:postgres

• Host: The address of the server hosting the PostgreSQL database.
• Port: The port used to connect to the server hosting the PostgreSQL database.
• Database: The name of the database.
• User name: The user Id provided for authentication with the PostgreSQL database. You can specify this in the JDBC URL with the "user" parameter.
• Password: The password provided for authentication with the PostgreSQL database.

CacheLocation

Data Type

string

Default Value

"%APPDATA%\\CData\\GoogleSheets Data Provider"

Remarks

The CacheLocation is a simple, file-based cache. The driver uses Java DB, Oracle's distribution of the Derby database. To cache to Java DB, you will need to add the Java DB JAR file to the classpath. The JAR file, derby.jar, is shipped in the JDK and located in the db subfolder of the JDK installation.

If left unspecified, the default location is "%APPDATA%\\CData\\GoogleSheets Data Provider" with %APPDATA% being set to the user's configuration directory:

See Also

• AutoCache: Set to implicitly create and maintain a cache for later offline use.
• CacheMetadata: Set to persist the Google Sheets catalog in CacheLocation.

CacheTolerance

Data Type

int

Default Value

600

Remarks

The tolerance for stale data in the cache specified in seconds. This only applies when AutoCache is used. The driver checks with the data source for newer records after the tolerance interval has expired. Otherwise, it returns the data directly from the cache.

Offline

Data Type

bool

Default Value

false

Remarks

When Offline = true, all queries execute against the cache as opposed to the live data source. In this mode, certain queries like INSERT, UPDATE, DELETE, and CACHE are not allowed.

CacheMetadata

Data Type

bool

Default Value

false

Remarks

As you execute queries with this property set, table metadata in the Google Sheets catalog are cached to the file store specified by CacheLocation if set or the user's home directory otherwise. A table's metadata will be retrieved only once, when the table is queried for the first time.

When to Use CacheMetadata

The driver automatically persists metadata in memory for up to two hours when you first discover the metadata for a table or view and therefore, CacheMetadata is generally not required. CacheMetadata becomes useful when metadata operations are expensive such as when you are working with large amounts of metadata or when you have many short-lived connections.

When Not to Use CacheMetadata

• When you are working with volatile metadata: Metadata for a table is only retrieved the first time the connection to the table is made. To pick up new, changed, or deleted columns, you would need to delete and rebuild the metadata cache. Therefore, it is best to rely on the in-memory caching for cases where metadata changes often.
• When you are caching to a database: CacheMetadata can only be used with CacheLocation. If you are caching to another database with the CacheDriver and CacheConnection properties, use AutoCache to cache implicitly. Or, use CACHE Statements to cache explicitly.

AutoAdjustRange

Data Type

bool

Default Value

false

Remarks

If set to true, the driver will automatically expand the dimensions in case the updated/insert/deleted value is outside the range of the sheet.

BatchSize

Data Type

int

Default Value

0

Remarks

When BatchSize is set to a value greater than 0, the batch operation will split the entire batch into separate batches of size BatchSize. The split batches will then be submitted to the server individually. This is useful when the server has limitations on the size of the request that can be submitted.

Setting BatchSize to 0 will submit the entire batch as specified.

ConnectionLifeTime

Data Type

int

Default Value

0

Remarks

The maximum lifetime of a connection in seconds. Once the time has elapsed, the connection object is disposed. The default is 0 which indicates there is no limit to the connection lifetime.

ConnectOnOpen

Data Type

bool

Default Value

false

Remarks

When set to true, a connection will be made to Google Sheets when the connection is opened. This property enables the Test Connection feature available in various database tools.

This feature acts as a NOOP command as it is used to verify a connection can be made to Google Sheets and nothing from this initial connection is maintained.

Setting this property to false may provide performance improvements (depending upon the number of times a connection is opened).

DateTimeRenderOption

Data Type

string

Default Value

"SerialNumber"

Remarks

InsertDataOption

Data Type

string

Default Value

"Overwrite"

Remarks

INSERT INTO Spreadsheet1_Sheet1(Id,Name, Amount) VALUES (2,'Test', 10)

MaxRows

Data Type

int

Default Value

-1

Remarks

Limits the number of rows returned rows when no aggregation or group by is used in the query. This helps avoid performance issues at design time.

NullValueMode

Data Type

string

Default Value

"ReadAsNull"

Remarks

NullValueMode controls how empty Google Sheets cells are modelled. An empty cell is a cell that has not been set and thus contains a null string. If NullValueMode is set to ReadAsNull, NULL is reported for an empty cell; if NullValueMode is set to ReadAsEmpty, an empty string is reported for an empty cell.

Other

Data Type

string

Default Value

""

Remarks

The properties listed below are available for specific use cases. Normal driver use cases and functionality should not require these properties.

Specify multiple properties in a semicolon-separated list.

Caching Configuration

Integration and Formatting

Pagesize

Data Type

int

Default Value

1000

Remarks

The Pagesize property affects the maximum number of results to return per page from Google Sheets. Setting a higher value may result in better performance at the cost of additional memory allocated per page consumed.

PercentageToDecimal

Data Type

bool

Default Value

false

Remarks

Boolean determining if percentage columns should be considered as decimal.

PoolIdleTimeout

Data Type

int

Default Value

60

Remarks

The allowed idle time a connection can remain in the pool until the connection is closed. The default is 60 seconds.

PoolMaxSize

Data Type

int

Default Value

100

Remarks

The maximum connections in the pool. The default is 100. To disable this property, set the property value to 0 or less.

PoolMinSize

Data Type

int

Default Value

1

Remarks

The minimum number of connections in the pool. The default is 1.

PoolWaitTime

Data Type

int

Default Value

60

Remarks

The max seconds to wait for a connection to become available. If a new connection request is waiting for an available connection and exceeds this time, an error is thrown. By default, new requests wait forever for an available connection.

PseudoColumns

Data Type

string

Default Value

""

Remarks

This setting is particularly helpful in Entity Framework, which does not allow you to set a value for a pseudo column unless it is a table column. The value of this connection setting is of the format "Table1=Column1, Table1=Column2, Table2=Column3". You can use the "*" character to include all tables and all columns; for example, "*=*".

Readonly

Data Type

bool

Default Value

false

Remarks

If this property is set to true, the driver will allow only SELECT queries. INSERT, UPDATE, DELETE, and stored procedure queries will cause an error to be thrown.

RowScanDepth

Data Type

int

Default Value

50

Remarks

The columns in a table must be determined by scanning table rows. This value determines the maximum number of rows that will be scanned.

Setting a high value may decrease performance. Setting a low value may prevent the data type from being determined properly, especially when there is null data.

RTK

Data Type

string

Default Value

""

Remarks

The RTK property may be used to license a build. See the included licensing file to see how to set this property. The runtime key is only available if you purchased an OEM license.

ShowEmptyRows

Data Type

bool

Default Value

false

Remarks

If true, the empty rows will be pushed at the output.

Timeout

Data Type

int

Default Value

60

Remarks

If Timeout = 0, operations do not time out. The operations run until they complete successfully or until they encounter an error condition.

If Timeout expires and the operation is not yet complete, the driver throws an exception.

UseConnectionPooling

Data Type

bool

Default Value

false

Remarks

This property enables connection pooling. The default is false. See Connection Pooling for information on using connection pools.

UserDefinedViews

Data Type

string

Default Value

""

Remarks

User Defined Views are defined in a JSON-formatted configuration file called UserDefinedViews.json. The driver automatically detects the views specified in this file.

You can also have multiple view definitions and control them using the UserDefinedViews connection property. When you use this property, only the specified views are seen by the driver.

This User Defined View configuration file is formatted as follows:

• Each root element defines the name of a view.
• Each root element contains a child element, called query, which contains the custom SQL query for the view.

For example:

{

	"MyView": {

		"query": "SELECT * FROM Spreadsheet1_Sheet1 WHERE MyColumn = 'value'"

	},

	"MyView2": {

		"query": "SELECT * FROM MyTable WHERE Id IN (1,2,3)"

	}

}

"UserDefinedViews", "C:\\Users\\yourusername\\Desktop\\tmp\\UserDefinedViews.json"

UseSimpleNames

Data Type

bool

Default Value

false

Remarks

Google Sheets tables and columns can use special characters in names that are normally not allowed in standard databases. UseSimpleNames makes the driver easier to use with traditional database tools.

Setting UseSimpleNames to true will simplify the names of tables and columns returned. It will enforce a naming scheme such that only alphanumeric characters and the underscore are valid for the displayed table and column names. Any nonalphanumeric characters will be converted to an underscore.

ValueInputOption

Data Type

string

Default Value

"UserEntered"

Remarks

ValueRenderOption

Data Type

string

Default Value

"FormattedValue"

Remarks