I have used If first. and last. options in data step.
But, couldn't find any similar options in proc sql.
Please provide me the solution for this issue.
These options do not exist in PROC SQL.
They exist in DATA steps.
Thus, if you need to use these options, you would use a DATA step and not PROC SQL.
Use both! You will twice as efficient!
I believe @PGStats comment nailed it.
Having said that: Some database SQL extensions provide "first" and "last" as analytics functions http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions056.htm ... but then: They don't have the SAS data step and implementing the same with PLSQL can be painful.
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