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DCount criteria not working properly

Hi experts,

I dun know why the following Dcount function is not giving me the correct count:

When I manually check from the table, I realized the criteria [Status] = 'a1' OR [Status] = 'a2' is not being read.

Can anyone help me resolve the issue here?
Many Thanks

myCount = Nz(DCount("[Number]", "TempOthers2", "[Type] = 'XFER' AND [Booking] = 'bbbb' " _
    & "AND ([Status] = 'a1' OR [Status] = 'a2') AND (Left([aField], 13) = 'UBSSG.LON.OTC' OR Left([aField], 15) = 'BARCSSG.LON.OTC' " _
    & "OR Left([aField], 13) = 'BNPSG.PAR.OTC') OR (Left([bField], 13) = 'UBSSG.LON.OTC' OR Left([bField], 15) = 'BARCSSG.LON.OTC' " _
    & "OR Left([bField], 13) = 'BNPSG.PAR.OTC')"), 0)

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peter57r

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LizzJ

ASKER

dun quite get it though. why need extra brackets?

LizzJ

ASKER

it works though.... weird

peter57r

Your structure was:

a=1 and b=2 and (c=3 or d=4) and (e=5 or f=6) or (g=7 or h=8)
AND has precedence over OR so this was read as:

( a=1 and b=2 and (c=3 or d=4) and (e=5 or f=6) ) or (g=7 or h=8)

so all of the first conditions must be true Or one of the last

I assumed yu always wanted the first set of conditions to be true and at least one of the big OR clauses to be true so you need to force Access to read it that way.
a=1 and b=2 and (c=3 or d=4) and ( (e=5 or f=6) or (g=7 or h=8) )