Exception handling and status (system words)

As shown in the next table, exception handling and status words are used to control how programs respond to exceptions and error conditions (such as arithmetic overflow), and to determine what codes are returned when exceptions occur.

System word/Usage	Description
sysLib.displayMsgNum sysLib.displayMsgNum (msgNumber)	Retrieves a value from the program's message table
sysLib.setError sysLib.setError (elementInError, msgKey, msgInsertList) sysLib.setError (msgText)	Associates a message with an item in a page handler or with the page handler itself
sysLib.validationFailed sysLib.validationFailed (msgNumber)	Involved in message presentation on a text or print form
sysVar.errorCode sysVar.errorCode	Receives a status code after any of the following events: The invocation of a call statement, if that statement is in a try block An I/O operation on an indexed, MQ, relative, or serial file The invocation of almost any system function in these cases-- The invocation is within a try block; or The program is running in VisualAge Generator Compatibility mode and sysVar.handleSysLibErrors is set to 1 (For an overview that includes details on sysVar.errorCode, see Exception handling.)
sysVar.handleHardIOErrors sysVar.handleHardIOErrors	Controls whether a program continues to run after a hard I/O error occurs on an I/O operation
sysVar.handleOverflow sysVar.handleOverflow	Controls error processing after an arithmetic overflow
sysVar.handleSysLibErrors sysVar.handleSysLibErrors	Specifies whether the value of the system variable sysVar.errorCode is affected by the invocation of a system function
sysVar.mqConditionCode sysVar.mqConditionCode	Contains the completion code from an MQSeries API call following an add or scan I/O operation for an MQ record
sysVar.overflowIndicator sysVar.overflowIndicator	Is set to 1 when arithmetic overflow occurs
sysVar.returnCode sysVar.returnCode	Contains the external return code to be checked when the program ends; the check is by the command processor or by the calling high-level language program
sysVar.sqlca sysVar.sqlca	Contains the SQL communication area (SQLCA) returned for the last SQL I/O operation
sysVar.sqlcode sysVar.sqlcode	Contains the return code for the most recently completed SQL I/O operation
sysVar.sqlerrd sysVar.sqlerrd[index]	Is a static 6-element array, where each element contains the corresponding SQL communication area (SQLCA) value that was returned from the last SQL I/O option
sysVar.sqlerrmc sysVar.sqlerrmc	Contains the substitution variables for the error message associated with the return code in sysVar.sqlcode
sysVar.sqlState sysVar.sqlState	Contains the SQL state value for the most recently completed SQL I/O operation
sysVar.sqlwarn sysVar.sqlwarn[index]	Is a static 11-element array, where each element contains a warning byte returned in the SQL communications area (SQLCA) for the last SQL I/O operation and where the index is one greater that the warning number in the SQL SQLCA description; sqlwarn[1], for example, refers to SQLWARN0
sysVar.validationMsgNum sysVar.validationMsgNum	Contains the value assigned by sysLib.validationFailed

Related reference
EGL statements
Exception handling
Function invocations
System words
System words in alphabetical order