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# Receiving GROUP BY error in Oracle 8i but not 10g

## The following query works fine in Oracle 10g, but it gives a group by error in Oracle 8i.

The following query works fine in Oracle 10g. But it gives a group by error at the line "(SELECT distinct DetailDesc FROM Common.detail WHERE detail=substr(c.head,12,2)) as description" in Oracle 8i. I have 8i and 10g at two different locations. Please help.
```strQry = "select major,demand, head, pnp,cvt,sum(case when accountmonth <
" & AccMonCode & " and year = " & AccFinYear & " then amount else 0 end)
as uptothismonth," & _
" sum(case when accountmonth = " & AccMonCode & " and year =
" & AccFinYear & " then amount else 0 end) as thismonth, " & _
" sum(case when accountmonth <= " & AccMonCode & " and year =
" & AccFinYear & " then amount else 0 end) as total, " & _
" (case when c.major >= '2011' and c.major <= '2059' then 'I' " & _
"      when c.major >= '2070' and c.major <= '2205' then 'II' " & _
"      when c.major >= '2210' and c.major <= '2217' then 'III' " & _
"      when c.major >= '2220' and c.major <= '2404' then 'IV' " & _
"      when c.major >= '2405' and c.major <= '2701' then 'V' " & _
"      when c.major >= '2702' and c.major <= '3475' then 'VI' " & _
"      when c.major >= '6003' and c.major <= '7610' then 'VII' " & _
"      when c.major >= '4055' and c.major <= '4406' then 'VIII' " & _
"      when c.major >= '4407' and c.major <= '5452' then 'IX' end) as volume, " & _
" (SELECT distinct DetailDesc FROM Common.detail WHERE detail=substr(c.head,12,2)) as description, " & _
" (SELECT distinct DemandDesc FROM Common.demand WHERE demand=c.demand) as demanddesc, " & _
" (SELECT distinct majorDesc FROM Common.major WHERE major=c.major) as majordesc, " & _
" (SELECT distinct submajorDesc FROM Common.submajor
WHERE major||submajor=substr(c.head,1,6)) as submajordesc, " & _
" (SELECT distinct minorDesc FROM Common.minor
WHERE major||submajor||minor=substr(c.head,1,9)) as minordesc, " & _
" (SELECT distinct subDesc FROM Common.sub
WHERE demand||major||submajor||minor||sub||pnp=c.demand||substr(c.head,1,11)||c.pnp) as subdesc, " & _
" (case when substr(head,7,7) <> '0000000' then '1' else '2' end) as recovery " & _
" from conspayments c where major < '8000' and year =
```
The ability to put the subselect in the SELECT clause is not available in Oracle 8i. This feature first appeared in Oracle 10g. That is why it works in 10g, but not in 8i. You will have to recode your query to be able to run against an Oracle 8i database. Or upgrade that database to 10g.
This was last published in February 2007

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