No, it still acts as a sub-query.
??
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order by in subquery
CURSOR amd
IS
SELECT SID, NAME, phoneno, CLASS
FROM (SELECT ROWNUM c, SID, NAME, CLASS, phoneno
FROM student
WHERE CLASS = :classes AND branch = :student.br
AND edate IS NULL)
WHERE c <= 20
ORDER BY SID;
is working fine in forms 6i.
but i want ORDER BY IN subquery
CURSOR amd
IS
SELECT SID, NAME, phoneno, CLASS
FROM (SELECT ROWNUM c, SID, NAME, CLASS, phoneno
FROM student
WHERE CLASS = :classes AND branch = :student.br
AND edate IS NULL order by SID)
WHERE c <= 20;
In SQL*Plus both working fine but in forms the 2nd creates problems
I know it is odd to use order by in subquery but i need it here because of rownum
any solutions
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Answers
http:#24763954 answers the question. bulk of it explains what is wrong, last two lines provide alternatives for forms limitations
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by: sdstuberPosted on 2009-07-02 at 07:49:01ID: 24763954
oracle forms 6i and lower has its own sql and pl/sql parser which doesn't support everything the server does
in any case you will probably want another level of nesting your subqueries
because ROWNUM is applied before order by.
If you want your data ordered then numbered try this...
CURSOR amd
IS
SELECT SID, NAME, phoneno, CLASS
FROM (SELECT ROWNUM c, sid,name,class,phoneno from
(select SID, NAME, CLASS, phoneno
FROM student
WHERE CLASS = :classes AND branch = :student.br
AND edate IS NULL order by SID))
WHERE c <= 20;
In order to get your cursor to work in forms you will either have to put it in a server side pl/sql block and return it as reference cursor or you will need to use dynamic sql so the server will parse it instead of the form.
Or, wrap query in a view on the server side and query it. Note, that will likely preclude your parameters. Unless you write it with analytics