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Opening SQLite Databases

  

There are several ways to open SQLite databases in Database Tour:

  1. Opening through FD interface. Select FD interface, click SQLite, then fill all needed database parameters. You can also create a new SQLite database here.

    SQLite database connection parameters:

    (required parameters are highlighted)

    ParameterDescriptionValue example
    Vendor libraryA path to installed SQLite library (when the application cannot find it automatically)C:\sqlite\sqlite3.dll
    DatabaseA path to a database. A path can include path variables.
    Instead of real database, you can specify ':memory:' to work with an empty in-memory database.    		c:\databases\products.db
    Shared cacheEnables or disables SQLite shared cache.True
    Blocking mode

    Sets the database connection locking mode. Possible values:

    • Exclusive (default) - gives maximum performance;
    • Normal - allows multi-user access.
    		Exclusive
    Open mode

    Sets the database open mode. Possible values:

    • ReadWrite
    • ReadOnly
    		ReadWrite
    String format

    Defines text data representation. Possible values:

    • Choose (default) - text data are represented according to their declared column types;
    • Unicode - text data are represented in Unicode encoding;
    • ANSI - text data are represented in ANSI encoding.
    		Unicode
    GUID format

    Defines the way of storing GUID values. Possible values:

    • String (default) - stores GUID as a character text value;
    • Binary - stores GUID as a binary text value.
    		String
    Date and time format

    Defines the way of storing date and time values. Possible values:

    • String (default) - stores date and time as a character string value in YYYY-MM-DD and HH:MM:SS.XXX format;
    • Binary - stores date and time as a real number, which is a Julian date;
    • DateTime - stores date and time as a real number, which is a Gregorian data and time.
    		String
    Synchronization mode

    Sets the database connection synchronization mode of the in-memory cache with the database. Possible values:

    • Full - synchronizes at every critical moment;
    • Normal - similar to above, but less often;
    • Off (default) - gives maximum performance.
    		Off
    Foreign keys

    Enables foreign key usage (if SQLite version is 3.6.19 or above). Possible values:

    • On (default) - foreign keys are enabled;
    • Off - foreign keys are disabled.
    		On
    ExtensionsEnables or disables loading SQLite extensions.False
    SQLite advancedAdditional SQLite database connection options. See SQLite documentation for supported Pragma statements.
    PasswordSpecifies password for encrypted SQLite database.
    SQL command separatorSpecifies a separator for SQL commands in multi-command SQL scripts.;
  2. Opening through connection string. Select ADO interface, then choose Connection string option and write a connection string. This way is very flexible and allows to specify many additional parameters in the connection string and override standard Database Tour connection behavior. It is recommended for advanced users. Here are basic connection strings (more examples and details can be found in the Internet):

    Driver=SQLite3 ODBC Driver;Database=C:\MyData\My_db.db;   (SQLite3 ODBC Driver must be installed)

  3. Opening through ODBC DSN. Create (if it does not exist yet) an ODBC DSN of the corresponding type using Windows ODBC Data Source Administrator, and point it to the database. Then:

    - Select FD interface, click ODBC, then point the Data source parameter to the ODBC DSN by selecting it from the drop-down list.

    or

    - Select ADO or BDE interface, then choose ODBC data source option and then select the needed ODBC DSN from the drop-down list.

Notes

  1. SQLite library must be installed. It can be downloaded from the SQLite website.
  2. When choosing the ODBC option, please make sure the corresponding ODBC driver installed and the bit-version of it matches the bit-version of the application (32 or 64).

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See also