Solved

Why this doesnt work?

Posted on 2003-11-12
14
334 Views
Last Modified: 2010-04-01
Hi,

I tried this in the JSP:

sql = "Select A.AssetNo, A.Currency, A.BuyPrice, A.SellPrice, A.NavPrice from  tblUTDISPLIST A "+
        "where A.id = "+
        "("+
        "select max(B.ID) from tblUTDISPLIST B where B.assetno = A.assetno "+
        ")";
ps2 = conn.prepareStatement(sql);
rs2 = ps2.executeQuery();

It returns the error: java.sql.SQLException: Invalid column name

But why when i querying it via SQLPlus there is not error occurs? What's wrong with my code?

Also can comment at:
http://www.experts-exchange.com/Databases/Oracle/Q_20796284.html
0
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Question by:Ryan Chong
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14 Comments
 
LVL 15

Expert Comment

by:jimmack
ID: 9738055
sql = "Select A.AssetNo, A.Currency, A.BuyPrice, A.SellPrice, A.NavPrice from  tblUTDISPLIST A "+

This line is missing and "AS" keyword:

sql = "Select A.AssetNo, A.Currency, A.BuyPrice, A.SellPrice, A.NavPrice from  tblUTDISPLIST AS A "+
0
 
LVL 15

Expert Comment

by:jimmack
ID: 9738060
Oops.  So is this one:

>>       "select max(B.ID) from tblUTDISPLIST B where B.assetno = A.assetno "+

       "select max(B.ID) from tblUTDISPLIST AS B where B.assetno = A.assetno "+
0
 
LVL 52

Author Comment

by:Ryan Chong
ID: 9738235
sql = "Select A.AssetNo, A.Currency, A.BuyPrice, A.SellPrice, A.NavPrice from  tblUTDISPLIST As A "+
                          "where A.id = "+
                          "("+
                          "select max(B.ID) from tblUTDISPLIST As B where B.assetno = A.assetno "+
                          ")";

i got: ORA-00933: SQL command not properly ended ..
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LVL 15

Expert Comment

by:jimmack
ID: 9738400
Hmm.  On MySQL, I get a syntax error with the "select max..." line.  I don't think MySQL can handle the nested select.

Other than that, I can't see anything else wrong with this (though I'm no SQL expert!).

You can type this line in at a prompt and it works OK?
0
 
LVL 52

Author Comment

by:Ryan Chong
ID: 9738575
Problem resolved, actually there is nothing wrong with the SQL statement above! But it's something typo error on other parts. My bad... I must be very stressful recently doing multiple applications..

FYI, above is connect to an Oracle database, not MySQL

Sorry about that, will ask a question at CS to delete this question. Thanks for trying to help, jimmack, cheers
0
 
LVL 15

Expert Comment

by:jimmack
ID: 9738601
;-)

For my information, does that SQL line work with out "As" keywords?
0
 
LVL 52

Author Comment

by:Ryan Chong
ID: 9739010
Unfortunately, no luck in Oracle. I got an error when try add "As" in the query in sqlplus, that's why i remove the "As" :-)

Are you know PL/SQL well, jimmack? Also can take a look on my other question. Damn! i need solve it asap.

Oh.. if no objection, i will post a request at CS to delete this question, is this fine with you?

cheers
0
 
LVL 15

Expert Comment

by:jimmack
ID: 9739032
I'm afraid my knowledge of SQL is fairly limited.  I have recently had a similar problem to yours, where a complex query was involved, but I solved it programmatically.

If you want to delete this question, I don't have any problems with that ;-)
0
 
LVL 14

Expert Comment

by:kennethxu
ID: 9739670
>>Also can take a look on my other question. Damn! i need solve it asap
rogaut1 answered your question accurately, according to those jpg images you have posted.

If you have other problem, please give more detail.
0
 
LVL 52

Author Comment

by:Ryan Chong
ID: 9747468
You're right kennethxu, rogaut1 did give me great idea i miss out there, definitely will award pts to him, wil finalise and close the opening questions after the application is deployed. cheers
0
 
LVL 6

Expert Comment

by:jarasa
ID: 9772045
Hi Jimmack.

>>For my information, does that SQL line work with out "As" keywords?

For your information. On Oracle Does not work the "AS" KeyWord it has to be without it.

Best regards
Javier
0
 
LVL 15

Expert Comment

by:jimmack
ID: 9773387
Thanx Javier ;-)
0
 
LVL 52

Author Comment

by:Ryan Chong
ID: 10021100
Hi guys, time to close this question.

Suggestion: Delete this question
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