Wouldn't adding a SELECT into the UPDATE slow down the update considerably? Why the syntax you posted in your first reply would not work? Here is what I was trying to do. I wanted to reduce the value in field MYFLD1 by some calculated value of nValue1 but not to set it below 0. Then I wanted to increase the value in field MYFLD1 by some other calculated value of nValue2. I think maybe you changed the syntax because function MAX() in SQL Server takes only one parameter (is this the case?)?
>The correct (working) way to do that
>
>
>UPDATE mytable ;
> SET myfld1 = (SELECT MAX(myfld1) FROM mytable WHERE Pk = nPkValue) - nValue1 + nValue2 ;
> WHERE Pk = nPkValue
>
>
>>How come I didn't think of that? <g> Thank you very much.
>>>You can do it in one update
>>>
>>>
>>>UPDATE MYTABLE SET MYFLD1 = MAX(MYFLD1 - nValue1) + nValue2 WHERE Pk = nPkValue
>>>
>>>>
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham
