( [string database_name [, resource link_identifier]] )
fbsql_select_db() sets the current active
database on the server that's associated with the specified link
identifier. If no link identifier is specified, the last opened
link is assumed. If no link is open, the function will try to
establish a link as if fbsql_connect() was
called, and use it.
Returns TRUE on success or FALSE on failure.
The client contacts FBExec to obtain the port number to use for
the connection to the database. If the database name is a number
the system will use that as a port number and it will not ask
FBExec for the port number. The FrontBase server can be stared
as FRontBase -FBExec=No -port=<port number> <database
Every subsequent call to fbsql_query() will be
made on the active database.
if the database is protected with a database password, the user must
call fbsql_database_password() before selecting