Re: MySQL 4.0 and concat

2004-10-11 Thread William R. Mussatto
A bit of a warning, if the fields are DATETIME rather than DATE, add the appropriate hours:minutes:seconds to the test WHERE datetimefield >'1999-02-01 23:59:59'. When comparing DATETIME fields with date strings '00:00:00' is assumed and that can cause problems if one forgets that. > Have you consi

Fwd: Re: MySQL 4.0 and concat

2004-10-11 Thread Alfredo Cole
Sorry. This should have gone back to the list. -- Mensaje reenviado -- Subject: Re: MySQL 4.0 and concat Date: Lun 11 Oct 2004 11:37 From: Alfredo Cole <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] El Lun 11 Oct 2004 08:35, escribió: > Have you considered NOT comparing

Re: MySQL 4.0 and concat

2004-10-11 Thread SGreen
Have you considered NOT comparing dates as strings but rather as date values? That will avoid the use of CONCAT() completely. SELECT * FROM sampletable WHERE datefield >= '1999-01-12' and datefield <'1999-02-01' This example query will get all of the records from sampletable that were entere

MySQL 4.0 and concat

2004-10-11 Thread Alfredo Cole
Hi: I have a problem in that all statements that include concat execute very slowly. For instance, if I have three fields in string format that represent a year, month and day, and want to issue a select like: select * from cxcmanpag where contact (year,month,day)<=stringYear+stringMonth+stri