You must call this function before you make any other UltraLite library call, and before you execute any embedded SQL command.
Usually you should only call this function once, passing the address of the global sqlca variable (as defined in the sqlca.h header file). If you have multiple execution paths in your application, you can use more than one db_init call, as long as
each one has a separate sqlca pointer. This separate SQLCA pointer can be a user-defined one, or could be a global SQLCA that
has been freed using db_fini.
In multi-threaded applications, each thread must call db_init to obtain a separate SQLCA. Carry out subsequent connections
and transactions that use this SQLCA on a single thread.
Initializing the SQLCA also resets any settings from previously called ULEnable functions. If you re-initialize a SQLCA, you
must issue any ULEnable functions the application requires.
Syntax