How to order SQL query results in order given in IN Clause

Hi,
I Need to construct a query, which takes a string as input and results for those should be sorted in the order in which request was made.
Say, we have a couple of students, and the grades in different subjects to be the result of the query.
If John and Jane are the two students,
and if input is John,Jane
my output should be listing John, his subjects and grades
and then Jane, her subjects and grades.
I read somewhere in other posts, that i could use a query combined with regular expression to split a string into a temp table/array and use this as my input for my select query. Then use the rownum or level from this temp table to sort the data in order sent in.
But am not able to put together a query which would work for me.
Anyone with any pointers on this would be highly appreciated.
Thanks

Hi,
[This thread|http://forums.oracle.com/forums/thread.jspa?threadID=702891&tstart=0] is about splitting up delimited lists. You'll want to keep the n-th value from the user-supplied list, as well as n itself, in a result set, so you can use it in both your WHERE- and your ORDER BY clause.
If you're using SQL*Plus, you can also keep the whole list in a substriution variable, and use INSTR to see where individual values appeard in that list. Personally, I'd trust the first method (split and store) more.

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<%@ page import="java.sql.*" %>
<%@ page import="java.lang.*" %>
<%@ page import="java.text.*" %>
<jsp:include page="/index.html" flush="true"/>
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Currently i am runnig below DOS commands manually
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Edited by: sachin.mali on Oct 26, 2010 4:39 PM
Edited by: sachin.mali on Oct 26, 2010 4:43 PM

sachin.mali wrote:
Hi
Currently i am runnig below DOS commands manually
d:\apps\bin>TrueGridsCalc period="Aug 2010"
Now I want to write one batch file and schedule job on windows and make value of "period" to be dynamic. So to get that value i need to fetch it from DB
Steps which i am taking are
1. connect DB from command line (using SQLPLUS)
2. run query to fetch result
3.How to use query result in "period" parameter ?
I am good at step 1 and 2. Dnt know how to use query result in command to make it dynamic
Thank you
Sachin
Edited by: sachin.mali on Oct 26, 2010 4:39 PM
Edited by: sachin.mali on Oct 26, 2010 4:43 PMYOu'll have to have sqlplus spool the output to a file, then figure out some way of parsing that file. Too bad you're stuck with Windows. With any *nix you could do the file parsing with one line of code.

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http://asktom.oracle.com/~tkyte/ResultSets/index.html
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Select * from table2
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Hi,
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How to order SQL query results in order given in IN Clause

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