SET NULLDISPLAY
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Revision as of 14:21, 10 March 2009 by Yvonnemilne (Talk | contribs)
Contents
SET NULLDISPLAY
Class
SQL Applications
Purpose
To specify the text displayed for NULL values
Syntax
SET NULLDISPLAY TO [<expC>]
See Also
ALTER TABLE, CREATE TABLE, INSERT, EMPTY(), ISBLANK(), ISNULL(), SET NULL
Description
The SET NULLDISPLAY command is used to specify the text displayed for NULL values. By default NULL values are displayed as .NULL.. The optional <expC> is used to specify alternative display text. If <expC> is omitted, then the display is reset to the default.
Example
set sqldialect to vfp
set null on
set heading off
CREATE TABLE nullon (firstname c(20), lastname c(20))
INSERT INTO nullon (lastname) VALUES ("Smith")
list off
.NULL. Smith
set nulldisplay to "<null>"
list off
<null> Smith
set nulldisplay to
list off
.NULL. Smith
Products
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
