Function Status Codes
Status codes have three severity levels:
● S for success
● W for warning
● E for errorWhen a warning or error status is returned, attempts to execute statements using the return value of the function can produce erroneous or unexpected results. Therefore, you should check the return status codes to ensure that your function call is successful before using the returned values.
The following table lists the status codes and their severity levels.
Severity Level –4 UNIX: TheSTM_ROOT
environment variable is not defined. –3 –2 –1 The element is defined implicitly—it is an internally defined entity.