COBOL 66 Level top interview question must read

In COBOL 66 level one interesting point every programmer must know. Since this is a special level in COBOL.

COBOL 66 level
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What you need to know
COBOL 66 assigns a new name to a field or group. It just assigns an alternative name to a field. So physically it does not add any field to copy book. It is just a logical name.

Recently my friend has been asked the same question in an interview.

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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.