IBSQL

Use a TIBXSQLVAR object to provide properties and methods for use with the IBSQL component. 

The XSQLVAR structure is a field, sqlvar, in the XSQLDA. The sqlvar is especially important, because one XSQLVAR must be defined for each input parameter or column returned.  

Applications do not declare instances of the XSQLVAR ahead of time, but must, instead, dynamically allocate storage for the proper number of XSQLVAR structures required for each DSQL statement before it is executed, then deallocate it, as appropriate, after statement execution.