?
Solved

how to change the query from oracle to  mysql.

Posted on 2016-10-05
3
Medium Priority
?
83 Views
Last Modified: 2016-10-06
below query has been written in oracle.how to change this query in mysql.

select *
               from (
                    select rownum as rn, a.*
                    from (select * from test
                            where test_datetime  <= #{testDate}
                          order by test_datetime asc) a
                          )
              where rownum <= #{pageSize} and rn > #{offset}
0
Comment
Question by:chaitu chaitu
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 35

Expert Comment

by:ste5an
ID: 41829830
It's exactly the same in MySQL.

The interesting part is: In what front-end do you use? Cause the parameter format looks pretty suspicious.
0
 
LVL 20

Author Comment

by:chaitu chaitu
ID: 41829842
java.
Is rownum  there in mysql?
0
 
LVL 35

Accepted Solution

by:
ste5an earned 2000 total points
ID: 41829858
Ah, I see. In this case you need an iterator:

SELECT T.*, 
       @rownum := @rownum + 1 AS rownum
  FROM yourTable T, 
       (SELECT @rownum := 0) R

Open in new window


E.g. untested
SELECT  * ,
		@rownum := @rownum + 1 AS rownumO
FROM    ( SELECT	@rownum := @rownum + 1 AS rownumI ,
                    A.*
          FROM      ( SELECT    *
                      FROM      test
                      WHERE     test_datetime <= '#{testDate}'
                      ORDER BY  test_datetime ASC
                    ) A,
					 (SELECT @rownum := 0) RI
        ) B ,
		(SELECT @rownum := 0) RO
WHERE   rownumI <= '#{pageSize}'
        AND rownumO > '#{offset} '

Open in new window

0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article, I’ll talk about multi-threaded slave statistics printed in MySQL error log file.
Backups and Disaster RecoveryIn this post, we’ll look at strategies for backups and disaster recovery.
This video shows information on the Oracle Data Dictionary, starting with the Oracle documentation, explaining the different types of Data Dictionary views available by group and permissions as well as giving examples on how to retrieve data from th…
This video shows syntax for various backup options while discussing how the different basic backup types work.  It explains how to take full backups, incremental level 0 backups, incremental level 1 backups in both differential and cumulative mode a…
Suggested Courses

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question