dbSetConnectOptions#

Purpose#

Sets database-specific options.

Format#

dbSetConnectOptions(db_id, db_options)#
Parameters:

  • db_id (scalar) – database connection index number.

  • db_options (string) – a semi-colon separated list of option names or option=value pairs. Available options will depend upon the database being used.

Examples#

/*
** MySQL connection
** use an SSL connection to the server
*/
dbSetConnectOptions(db_id, "CLIENT_SSL=1;
    CLIENT_IGNORE_SPACE=1");

if not dbOpen();

    // Clears the connect option string
    dbSetConnectOptions(db_id, "");

endif;

/*
** PostgreSQL connection
** enable PostgreSQL SSL connections
*/
dbSetConnectOptions(db_id, "requiressl=1");
if not dbOpen();

    // Clears the connect option string
    dbSetConnectOptions(db_id, "");

endif;

// ODBC connection
dbSetConnectOptions(db_id, "SQL_ATTR_ACCESS_MODE=
    SQL_MODE_READ_ONLY;
    SQL_ATTR_TRACE=
    SQL_OPT_TRACE_ON");

// Set ODBC options
if not  dbOpen();

    // Don't try to set this option
    dbSetConnectOptions(db_id, "");

endif;

Remarks#

This must be done before the connection is opened or it has no effect (or you can dbClose() the connection, call this function and dbOpen() the connection again). The format of the options string is a semicolon separated list of option names or option=value pairs. The options depend on the database client used:

ODBC#

  • SQL_ATTR_ACCESS_MODE

  • SQL_ATTR_LOGIN_TIMEOUT

  • SQL_ATTR_CONNECTION_TIMEOUT

  • SQL_ATTR_CURRENT_CATALOG

  • SQL_ATTR_METADATA_ID

  • SQL_ATTR_PACKET_SIZE

  • SQL_ATTR_TRACEFILE

  • SQL_ATTR_TRACE

  • SQL_ATTR_CONNECTION_POOLING

  • SQL_ATTR_ODBC_VERSION

MySQL#

  • CLIENT_COMPRESS

  • CLIENT_FOUND_ROWS

  • CLIENT_IGNORE_SPACE

  • CLIENT_SSL

  • CLIENT_ODBC

  • CLIENT_NO_SCHEMA

  • CLIENT_INTERACTIVE

  • UNIX_SOCKET

  • MYSQL_OPT_RECONNECT

PostgreSQL#

  • connect_timeout

  • options

  • tty

  • requiressl

  • service

DB2#

  • SQL_ATTR_ACCESS_MODE

  • SQL_ATTR_LOGIN_TIMEOUT

OCI#

  • OCI_ATTR_PREFETCH_ROWS

  • OCI_ATTR_PREFETCH_MEMORY

TDS#

none

SQLite#

  • QSQLITE_BUSY_TIMEOUT

  • QSQLITE_OPEN_READONLY

  • QSQLITE_ENABLE_SHARED_CACHE

Interbase#

  • ISC_DPB_LC_CTYPE

  • ISC_DPB_SQL_ROLE_NAME

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