Change View API Support

Go Up to Change Views (Reference)

Change Views API support is provided through the extended SQLVAR structure, XSQLVAR, via a new interpretation of the SQLIND member. To review, a developer places a pointer to a variable in XSQLVAR.SQLIND to request NULL state. When the query is executed, InterBase places a zero at that pointer address if the column value for the returned row is non-NULL and sets it to -1 if it is NULL.

See Change Views API Support or a complete explanation of how the Statement Execution feature works.