Subtract a field in a record

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hey guys
i want to subtract a value in a field of the record
i have a table that name TableLogin that has 2 field : 1.ID 2.Login
default Login field is 4 i want to every time user login then login field subtract by one
i mean this (Login-1)

What I have tried:

i tried this code

Update Login set Login-1 where ID=2

but its not working and i get the error
how can i subtract (1) from the login field

Posted 25-Oct-17 1:22am

Member 13019612

Updated 25-Oct-17 1:32am

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OriginalGriff · Accepted Answer · 2017-10-25T01:31:00

Solution 1

Try:

SQL

UPDATE TableLogin SET Login=Login-1 WHERE ID=2

Posted 25-Oct-17 1:31am

OriginalGriff