Cobol Question:

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What does the IS NUMERIC clause establish?

Cobol Interview Question
Cobol Interview Question

Answer:

IS NUMERIC can be used on alphanumeric items, signed numeric & packed decimal items and unsigned numeric & packed decimal items. “IS NUMERIC” return TRUE if the item only consists of 0-9. However, if the item being tested is a signed item, then it may contain 0-9, + and -.

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