Hi Nguyen, sorry that I have not been able to answer your request earlier.
I am not sure where you problem is. The solution I recommended should do exactly what you want. The order of the rows is correctly maintained and you get the statement same statement as you have mentioned in your E-Mail. I am using it myself. This is an example of what I get with the Oracle driver: SELECT * FROM (SELECT row_.*, rownum rownum_ FROM (SELECT t1.LAST_NAME, t1.FIRST_NAME, t1.ADDRESS, t1.ZIP, t1.CITY FROM CUSTOMERS t1 ORDER BY t1.LAST_NAME, t1.FIRST_NAME) row_ WHERE rownum<=40) WHERE rownum_>20 If you don't get this you might have an old version of Empire-db. Please make sure you use the latest version. Best regards Rainer Von: Nguyen, Chieu X [mailto:[email protected]] Gesendet: Mittwoch, 18. Juni 2014 16:04 An: [email protected] Betreff: RE: Building DBCommand Hi Rainer, Thank you for responding to my email. I have try what you suggested and it works. The only issue with that is Oracle randomly selected # of rows to return. The reason I need to put in that format is because I want this scenario. Let say I have 400 rows in a table, and I want to select those 400 row order by customer name. Now, I want to return that 1st 100 in that order. Next, I want to run the same query but this time I want it to return rows 101-200, then, rows 201-300, and finally rows 301-400. I think the only I can achieved this is by running the query below. select * from ( select a.*, ROWNUM rnum from ( <select statemenet with order by clause> // I know how to write this query. ) a where rownum <= MAX_ROW ) where rnum >= MIN_ROW Thank You, Chieu Nguyen [email protected] From: Rainer Döbele [mailto:[email protected]] Sent: Wednesday, June 18, 2014 3:01 AM To: [email protected] Subject: re: Building DBCommand Hi Nhuyen, this is Oracle Syntax and it is already implemented for the Oracle driver. All you need to to is the following: 1. Make sure you are using de DBDatabaseDriverOracle. 2. Use cmd. limitRows(...) and cmd. skipRows(...) then it should generate the desired statement for you. There is no need to wrap the command inside another command. Best regards Rainer Von: Nguyen, Chieu X [mailto:[email protected]] Gesendet: Dienstag, 17. Juni 2014 22:43 An: [email protected] Betreff: Building DBCommand Hi Rainer, I was wondering how would I write the following SQL using EmpireDB. select * from ( select a.*, ROWNUM rnum from ( <select statemenet with order by clause> // I know how to write this query. ) a where rownum <= MAX_ROW ) where rnum >= MIN_ROW I would appreciate any suggestions. Thank You, Chieu Nguyen [email protected]
