How to eliminate du[licate rows in oracle

dear forum members,
this is madhav,
i come up with a problem that, how to eliminate duplicate records in table containing huge(laks) duplicate records.
And remember u should not use 'rownum' and 'rowid' in ur query and you should not use moving distinct rows into a new table and drop the old table and rename the new table with old table name. and ofcourse your query should be efficient.
please come up with a good reply .....please it is urgent..

Use a RowID in Oracle and an Identity column in SQL Server.
http://www.sql-server-performance.com/forum/topic.asp?TOPIC_ID=3385

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How to eliminate the duplicate rows in the table

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Scope works outwards.
SQL> DECLARE
2    n NUMBER;
3 BEGIN
4    n := 0;
5    DECLARE
6      n number;
7    BEGIN
8      n := 2;
9      dbms_output.put_line(n);
10    END;
11 END;
12 /
2
PL/SQL procedure successfully completed.
SQL> DECLARE
2    n NUMBER;
3 BEGIN
4    n := 0;
5    DECLARE
6      x number;
7    BEGIN
8       dbms_output.put_line(n);
9       n := 2;
10        dbms_output.put_line(n);
11    END;
12 END;
13 /
0
2
PL/SQL procedure successfully completed.
SQL> ed
Wrote file afiedt.buf
1 DECLARE
2    n NUMBER;
3 BEGIN
4    n := 0;
5    DECLARE
6      x number;
7    BEGIN
8       dbms_output.put_line(n);
9       x := 2;
10     END;
11       dbms_output.put_line(x);
12 EXCEPTION
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15 /
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ERROR at line 11:
ORA-06550: line 11, column 27:
PLS-00201: identifier 'X' must be declared
ORA-06550: line 11, column 6:
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SQL> Cheers, APC

How to get next 15 rows in oracle

Hi All,
How can I get the next 15 ,next 15 rows and so on using oracle sql statements.
For the first 15 rows I can use rownum and get them
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There is no need to have your gallery in rows, or have each element inside it's own div with class. You can make this much cleaner by making a list - like your menu.
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HTML
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<div id="galleryframeformovie">
<div id="gallery">
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</div>
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#gallery ul {
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Good luck.
Rik

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File->Xi->JDBC
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Database is a consumer of a SERVICE (SOA!!!!!!).
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Hi,
James has replied to your question ..
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That isn't true. Different SQL databases have
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I'd argue that it's best to use ANSI SQL as much as possible, especially if you want your JDBC code to be portable between databases.
and there are also a lot of different ways of talking to
SQL databases that are possible in JSP, from using
plain old java.sql.* in scriptlets to using the
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that. But as far as I know there's know way to update
more than one row where the values are different.I used this as an example to demonstrate that it's possible to UPDATE more than one row at a time. If I have 1,000 rows, and each one is a separate UPDATE statement that's unique from all the others, I guess I'd have to write 1,000 UPDATE statements. It's possible to have them all either succeed or fail as a single unit of work. I'm pointing out transaction, because they weren't coming up in the discussion.
Unless you're using MySQL, for instance. I only have
experience with MySQL and M$ SQL Server, so I don't
know what PostgreSQL, Oracle, Sybase, DB2 and all the
rest are capable of, but I know for sure that MySQL
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with one database in an environment where you have to
use a different one. Even different versions of the
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Nutshell. It covers the most common DBMSes and does a
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It's funny that you're telling me not to assume that all SQL databases are the same. You're the one who's proposing that the OP use a MySQL-specific extension.
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hi,
my requirement is that i m showing top 50 seller in my dashboard. but when we click on download to excel then all 500 rows are downloading. i want to restrict downloading all data and want show only displayed data of dashboard in excel sheet.(ex if 50 top seller are selected then only 50 rows is downloaded.)
Edited by: 941334 on Jun 18, 2012 6:15 AM

Hi,
Yes.my suggestion is you set each report design analysis page itself(just to -->edit analysis-->look at the table propeties -->here u can set it how ever you want(50 rows, 500 rows etc..analysis visible page) to show/download it as per your requirment.
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No time to google either I guess.
http://www.google.co.uk/search?q=number+of+rows+deleted+oracle&rls=com.microsoft:en-gb&ie=UTF-8&oe=UTF-8&startIndex=&startPage=1&rlz=&redir_esc=&ei=Qi5qToGyGYqw8QOGzf3nAg
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Table created.
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2
3      INSERT INTO dt_del_ex VALUES(1);
4
5      DBMS_OUTPUT.put_line(TO_CHAR(SQL%ROWCOUNT)||' rows inserted');
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Hello,
>> How can I add a row selector checkbox to the heading of the table to select/deselect all of my custom checkboxes?
Please check the following. I believe it’s simpler than the hijacking business.
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&diams; Please remember to mark appropriate posts as correct/helpful. For the long run, it will benefit us all.
&diams; Author of Oracle Application Express 3.2 – The Essentials and More

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in jdev 11.1.2.3,
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Edited by: user6715237 on 2013-4-19 下午9:29

Hi,CM,
I'm really very appreciated for your quick reply! You know, today is Saturday, it's not a day for everyone at work.
My principal requirement is as follows:
1.select/check some rows from VO2, and for each selection create a new row with some attributes from VO2 as default values for VO1's corresponding attributes, and during this process the user may be cancel/uncheck or redo some of the selections.
--so it's better to implement it in UI rather than in EO.
2.it's better to implement this function with declarative way as in Frank Nimphius' blog.
--little Jave/JS coding, the better. I only have experience in ORACLE FORMS, little experience in JAVA/JS.
In order to get full information for the requirements of my use case, can take a check at:
How to set default value for a VO query bind variable in a jspx page?
(the end half of the thread: I have a more realworld requirement similar to the above requirement is:
Manage bank transactions for clients. and give invoices to clients according to their transaction records. One invoice can contain one or many transactions records. and one transaction records can be split into many invoices.
Regards
bao
Edited by: user6715237 on 2013-4-19 下午11:18
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How to eliminate du[licate rows in oracle

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