LSTRLOB parameter

Treat LOBs as Longstrings

Summary

Default value

1

Parameter type

System

Where set

System manager

Related products

All

Introduced

Sirius Mods Version 7.7

Description

When LSTRLOB=1, User Language programs can use normal field reference syntax for Lob fields. Otherwise (LSTRLOB=0), access to Lob fields must use the Buffer syntax. LSTRLOB is generally available as of Model 204 V7R5.

The default value of LSTRLOB is 1. LSTRLOB has no effect for Model 204 version V7R1.

The "normal field reference syntax" applies to all uses of a BLOB or CLOB field name except for the Note statement.

The types of allowed "normal field references" are shown in the following table, which assumes that field LOB has the BLOB or CLOB attribute:

Type of reference	Examples
Used in expression	%s = LOB %t = LOB:substring(%pos, %len) %xmNode:addElement('info', LOB)
Print statement	print 'Value is:' and LOB
Field updates	%s1 = 'x':left(3000, pad='x') store record LOB = %s1 end store add LOB = %s2 Note that the normal field reference syntax in the Store Record and Add statements does not have a provision for the Reserve clause which is available on the Buffer syntax. This is not an issue for a FILEORG=X'100' file, because the Reserve clause is ignored in those files (Lob pages are chained rather than allocated contiguously). change LOB to %s3 Note that the only type of Change statement allowed for a field with the MINLOBE attribute is this form, using the normal field reference syntax.