convert zero-length to Null

A

alwaweru

I am trying to change zero-length strings to Null on a table. How do i
do this.
 
K

KARL DEWEY

Use an update query. First backup your database.
UPDATE Mark SET Mark.status = Null
WHERE (((Mark.status)=""));
Substitue your table name for Mark and your field name for status.
 
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