Description
bool 
sybase_select_db ( string database_name [, resource link_identifier] )
 
   sybase_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 sybase_connect() was
   called, and use it.
  
 
   Returns TRUE on success or FALSE on failure.
  
   Every subsequent call to sybase_query() will be
   made on the active database.
  
 
   See also
   sybase_connect(), 
   sybase_pconnect() and
   sybase_query()