4D v20
NULLIF
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4D v20
NULLIF
NULLIF
|
NULLIF (arithmetic_expression, arithmetic_expression) |
||
The NULLIF function returns NULL if the first arithmetic_expression is equal to the second arithmetic_expression. Otherwise, it will return the value of the first arithmetic_expression. The twoexpressions must be comparable.
This example returns NULL if the total of the invoice is 0:
NULLIF(INVOICE_TOTAL,0);
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Product: 4D
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4D SQL Reference ( 4D v20)
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