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As topic says, I need to update a MySQL DB. I have a field with VARCHAR(10) and then any combination of 10 numbers, ie. 3243546576
I want to update all entries so that they look like :
VARCHAR(11) and 324354-6576
That´s an extra ´-´ before the last 4 numbers. How do I do this in a safe way? Tought about using a PHP script to do it for me somehow...?
UPDATE "TABLENAME" SET "FIELDNAME" = left("FIELDNAME",6) & '-' & right("FIELDNAME",4) where SOMETHING = '1'
It updated one entry where SOMETHING = 1, so that was np. But it didnt do what I wanted, it just set "FIELDNAME" to "0".
Good job that I didnt do an update all or 28000 entries would been set to 0 :D
What could be wrong?