IFX_UPDDESC environment variable
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.