What are Macros? | Data Stage

They are built from Data Stage functions and do not require arguments. A number of macros are provided in the JOBCONTROL.H file to facilitate getting information about the current job, and links and stages belonging to the current job. These can be used in expressions (for example for use in Transformer stages), job control routines, filenames and table names, and before/after subroutines.
These macros provide the functionality of using the DSGetProjectInfo, DSGetJobInfo, DSGetStageInfo, and DSGetLinkInfo functions with the DSJ.ME token as the JobHandle and can be used in all active stages and before/after subroutines. The macros provide the functionality for all the possible InfoType arguments for the DSGet…Info functions. See the Function call help topics for more details.
 The available macros are:
DSHostName
DSProjectName              
DSJobStatus
DSJobName
DSJobController
DSJobStartDate
DSJobStartTime
DSJobStartTimestamp
DSJobWaveNo
DSJobInvocations
DSJobInvocationId                          
DSStageName
DSStageLastErr
DSStageType
DSStageInRowNum
DSStageVarList                  
DSLinkRowCount
DSLinkLastErr
DSLinkName

1) Examples
2) To obtain the name of the current job:
3) MyName = DSJobName

To obtain the full current stage name:
MyName = DSJobName : “.” : DSStageName