Open topic with navigation

Conditions.bool-primary-isnull

Determines whether or not a given expression is NULL

Format

expression IS [ NOT ] NULL

Remarks

If the value of expression is NULL, IS NULL returns True otherwise, it returns False.

If the value of expression is NULL, IS NOT NULL returns False otherwise, it returns True.

Example:

CurrentValue IS NULL

Disclaimer

ClearSCADA 2017 R2

© 2018 AVEVA Group Plc.  All Rights Reserved.

The Schneider Electric industrial software business and AVEVA have merged to trade as AVEVA Group plc, a UK listed company. The Schneider Electric and Life is On trademarks are owned by Schneider Electric and are being licensed to AVEVA by Schneider Electric.