Difference between revisions of "ONROLLBACK Table Constraint"

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==Example==
 
==Example==
 
<code lang="recital">
 
<code lang="recital">
ALTER TABLE customer modify ONROLLBACK "p_rollback";
+
ALTER TABLE customer;
 +
  modify ONROLLBACK "p_rollback"
 
</code>
 
</code>
  
  
 
==Products==
 
==Products==
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
+
Recital, Recital Server
 
[[Category:Documentation]]
 
[[Category:Documentation]]
 
[[Category:SQL]]
 
[[Category:SQL]]

Latest revision as of 11:04, 22 December 2009

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, Recital Server