db_init has not been called or the call to db_init failed

Item Value
SQLCODE -739
Constant SQLE_DB_INIT_NOT_CALLED
SQLSTATE 55W07
Sybase error code 13752
ODBC 2 State ERROR
ODBC 3 State ERROR

Probable cause 

The SQLCA passed to a dblib entry point has not been initialized by a call to db_init or the call to db_init failed.