The Default Value property only applies the value specified to newly added
records. It will not change a null value in an existing record. If you have
existing records with null values you want to change to zero, you need to use
an update query to fix your data.

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Dave Hargis, Microsoft Access MVP
> I have a form that pulls the values of text boxes into a table - pretty
> standard. My trouble is that it won't pull the zero values into the table.
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>
> Brennan