IFX_UPDDESC (IDS)

You must set the IFX_UPDDESC environment variable at execution time before you can do a DESCRIBE of an UPDATE statement.

>>-setenv--IFX_UPDDESC--value----------------------------------><
 

value

is any non-NULL value.

A NULL value (here meaning that IFX_UPDDESC is not set) disables the describe-for-update feature. Any non-NULL value enables the feature.