SQL Statement

What does "*" in below statement "BaseAmount=BaseAmount*-1"  mean ?

update SALES_INVOICE set BaseAmount=BaseAmount*-1
 AND ACCOUNTNUM='81200810'
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Makes no sense!
Johny BravoCommented:
If your BaseAmount is 5000
then executing above statement will make it, -5000

In short it is like (YourColumnValue) * (-1)
So if your BaseAmount value is 5000 it will work as (5000) * (-1) = -5000

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It means multiply

* is multiply

The update statement is reversing the sign of the values by multiplying everything by minus one:
if something was a positive number before the update it is negative after the update, and if negative before the update it will be positive after the update.
AXISHKAuthor Commented:
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Query Syntax

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