We all know that in COBOL to process commands in a loop you need to go for perform statements. You all very familiar about all the COBOL statements.


  • There are two Perform statements, one is UNTIL and the other one is TIMES. The question is when to use these technics in a program.
  • If you know how many times a program code will run in a loop , then you need to go for TIMES. The other way you are not aware the number of times the code runs then you need to go for UNTIL. Also Read– 6 Top COBOL PERFORM Statements
  • Since, you are reading a big file,  you do not know the records you have then the UNTIL is most preferable.
  • This looks simple answer but the way telling should be understood by interviewer. Due to this reason, it became complex and logic related question.

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Author: Srini

Experienced software developer. Skills in Development, Coding, Testing and Debugging. Good Data analytic skills (Data Warehousing and BI). Also skills in Mainframe.