AW: Select one valuebut not the other
Simply translated: select * from table t1 where t1.data_value=1 AND not exists(select * from table t2 where t2.data_value=2 and t2.item_number = t1.item_number) Axel Diehl __ GIP Exyr GmbH Hechtsheimer Str. 35-37 | 55131 Mainz Tel: +49 (0) 6131 / 80124 - 46 | Fax: +49 (0) 6131 / 80124 - 24 E-Mail: axel.di...@gip.com | Web: www.gip.com http://www.gip.com/ Geschäftsführer: Dr. Bernd Reifenhäuser, Dr. Alexander Ebbes Handelsregister: HRB 6870 - Amtsgericht Mainz -Ursprüngliche Nachricht- Von: Olivier Nicole [mailto:olivier.nic...@cs.ait.ac.th] Gesendet: Mittwoch, 29. April 2015 07:21 An: mog...@fumlersoft.dk Cc: mysql@lists.mysql.com Betreff: Re: Select one valuebut not the other SELECT * FROM table WHERE item_number=1; Sorry if my question was not clear: what I am looking for is: SELECT * FROM table WHERE data_value=1 AND there is not any reccord with the same item_number and data_value=2 Olivier On Wed, April 29, 2015 06:30, Olivier Nicole wrote: Hi, I am sure that it is feasible with MySQl, and I am sure that's a newbie question, but my SQL skills are limited... I have a table where each record is made of one item_number and one data_value. If one item has several values, there are several records with the same item_number and a different data_value. What is the command to select all the records where an item_number has the data 1 but not the data 2? Thanks in advance, Olivier -- Mogens Melander +66 8701 33224 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql
Re: AW: Select one valuebut not the other
Axel, Simply translated: select * from table t1 where t1.data_value=1 AND not exists(select * from table t2 where t2.data_value=2 and t2.item_number = t1.item_number) Yes, but with t1 and t2 the same table. best regards, Olivier Axel Diehl __ GIP Exyr GmbH Hechtsheimer Str. 35-37 | 55131 Mainz Tel: +49 (0) 6131 / 80124 - 46 | Fax: +49 (0) 6131 / 80124 - 24 E-Mail: axel.di...@gip.com | Web: www.gip.com http://www.gip.com/ Geschäftsführer: Dr. Bernd Reifenhäuser, Dr. Alexander Ebbes Handelsregister: HRB 6870 - Amtsgericht Mainz -Ursprüngliche Nachricht- Von: Olivier Nicole [mailto:olivier.nic...@cs.ait.ac.th] Gesendet: Mittwoch, 29. April 2015 07:21 An: mog...@fumlersoft.dk Cc: mysql@lists.mysql.com Betreff: Re: Select one valuebut not the other SELECT * FROM table WHERE item_number=1; Sorry if my question was not clear: what I am looking for is: SELECT * FROM table WHERE data_value=1 AND there is not any reccord with the same item_number and data_value=2 Olivier On Wed, April 29, 2015 06:30, Olivier Nicole wrote: Hi, I am sure that it is feasible with MySQl, and I am sure that's a newbie question, but my SQL skills are limited... I have a table where each record is made of one item_number and one data_value. If one item has several values, there are several records with the same item_number and a different data_value. What is the command to select all the records where an item_number has the data 1 but not the data 2? Thanks in advance, Olivier -- Mogens Melander +66 8701 33224 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql
