ONROLLBACK Table Constraint

Purpose

Table constraint activated when a forms based operation is abandoned

Syntax

ONROLLBACK <procedure>

See Also

ALTER TABLE, CONSTRAINTS, CREATE TABLE

Description

A constraint is used to define rules that help to provide data integrity. TABLE constraints apply to table-based operations. You must have ALTER privilege on the table. The table will be locked for EXCLUSIVE use during the operation.

The ONROLLBACK table constraint is activated when a forms based operation is abandoned. The <procedure> specified must be a character expression evaluating to a procedure name. If no file extension is included, '.prg' is assumed. The specified procedure is run when the user presses the [ABANDON] key.

Example

ALTER TABLE customer modify ONROLLBACK "p_rollback";

Products

Recital Database Server, Recital Mirage Server, Recital Terminal Developer