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To change a null (blank or missing) value for either period 1 or period 2 in Access we would use the following two Access functions,
To change a null (blank or missing) value for either period 1 or period 2 in Access we would use the following two Access functions,
a. If, Is Null
b. IIf, Is Null
c. If, Is Blank
d. IIf, Is Blank
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