Please tell me what I am doing wrong.
When we add a record into our db, initially, only one digit number is added.
From that point on, we increment that number by 1.
Example, assume we have a number 1, each update increments this number to 2, 3, 4, etc.
we would like to decrement this number by 1.
For instance, assume we have a number 4 on the db, we would like to decrement this number by 1 to 3,2,1, etc.
First we select that number from the db
SQLS ="Select phaseNum from tblPhases " & _
"where Id=" & currentId
set rs = conn.Execute (SQLS)
do until rs.eof
lowNum = rs("phaseNum")
loweredPhaseNum = loweredPhaseNum - lowNum
rs.MoveNext
Loop
Then decrement it by one
SQL = "Update tblPhases SET " & _
"PhaseNum = " & loweredPhaseNum & " " & _
"where Id=" & currentId
conn.Execute SQL
Instead of decrement, say 4 to 3, I get -4
What am I doing wrong?
Thanks a lot in advance
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Every time your loop runs it's decrementing a number by whatever phaseNum happens to be for each record, so if lowNum starts at 0, and you have five records (with a PhaseNum of 1, 2, 3, 4 and 5) then lowNum is going to end up being -15. THEN you're writing lowNum back. I think what you want is for the SELECT and UPDATE statements to both be inside the loop. (you might need to use a second SqlConnection object for the update)
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by: tgerbertPosted on 2009-11-04 at 09:16:51ID: 25741575
Just subtract 1?
lowNum = rs("phaseNum")
lowNum = lowNum - 1