&ZFDBK

Returns completion information following execution of selected NCL statements.

Many NCL verbs return completion information after execution that indicates the success or result of the operation. This completion information is returned in the &ZFDBK system variable, so that results are available from a consistent location.

Example: &ZFDBK

&GOTO .CODE&ZFDBK
 .
 .
 . 
.CODE0
 .
 .-* FDBK = 0 = Successful operation
 .
 .CODE4
 .
 .-* FDBK = 4 = operation failed.

Notes:

&ZFDBK is set as a result of the execution of a variety of NCL statements, and is available for inspection on return from any statement that sets it. If the contents of the variable are to be used, remember that they should be inspected before any other statement is executed that might also set &ZFDBK.

The meaning of the values set in &ZFDBK depends upon the statement that sets the variable. Therefore, check that statement if you need any explanation of the &ZFDBK value returned.