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legendmaddy
Starting Member
3 Posts |
 Posted - 2009-06-16 : 07:28:15
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| Hi All,I did a querySelect A.G_L Account No_,B.Name as GLName,sum(A.Amount) as Amount,sum(A.Debit Amount) as Debit,sum(A.Credit Amount) as Creditfrom European App1l$G_L Entry A,European App2l$G_L Account B where Account Type='0' and Income_Balance='0' and A.Posting Date<='2009-01-01'group by A.G_L Account No_,B.Namethis query takes just 15 seconds to retrive the data.the same query bt only small difference insted of lessthan i use grater than condition Select A.G_L Account No_,B.Name as GLName,sum(A.Amount) as Amount,sum(A.Debit Amount) as Debit,sum(A.Credit Amount) as Creditfrom European Apparel$G_L Entry A,European Apparel$G_L Account B where Account Type='0' and Income_Balance='0' and A.Posting Date>='2009-01-01'group by A.G_L Account No_,B.Namewhich should normally less data than the 1 st query ...but it taking lot of time to retrive data ..taking more than 1 hour.i would like to know the reason for that.can u please expalin me why is it like so?? |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2009-06-16 : 07:31:45
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It means you have probably have a different number of records satisfiying the two variants of WHERE.It can also mean that the SQL engine has to create a execution plans for second query, if such does not exist.
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