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The REPEAT Function
Syntax for the REPEAT function:
sub-string is a character or binary string expression.
repeat-count is an integer expression.
Rules:
- The result is a character or binary string consisting of sub-string repeated repeat-count times.
- If the value of repeat-count is zero, then the result of the function is a character or binary string of length zero.
- If the value of repeat-count is less than zero, then the result of the function is NULL.
- If the value of either operand is NULL, then the result of the function is NULL.
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