Hamid, Look in the Sql manual.
For UNION clauses, you must ORDER BY the item number: SELECT A,B,C FROM TABLEABC UNION SELECT D,E,F FROM TABLEDEF ORDER BY 1 <===================== lookee here hope this helps Tom Mercadante Oracle Certified Professional -----Original Message----- Sent: Thursday, January 17, 2002 1:31 PM To: Multiple recipients of list ORACLE-L Hi, I try to use union and order by first column of first select statment and also first column of second select statment but get error, Any Idea how to do this?? SELECT A,B,C FROM TABLEABC UNION SELECT D,E,F FROM TABLEDEF ORDER BY A,D Hamid Alavi Office 818 737-0526 Cell 818 402-1987 The information contained in this message and any attachments is intended only for the use of the individual or entity to which it is addressed, and may contain information that is PRIVILEGED, CONFIDENTIAL and exempt from disclosure under applicable law. If you have received this message in error, you are prohibited from copying, distributing, or using the information. Please contact the sender immediately by return e-mail and delete the original message from your system. -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Hamid Alavi INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mercadante, Thomas F INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
