Reference: http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:1542606219593
Tom... I was told once that if you only need a single char use CHAR(1) since using VARCHAR2(1) has overhead due to the Oracle having to maintain how long the value is in a VARCHAR2 field Is this a load of rubbish or is there some truth to it? Followup: that is rubbish. A char(n) is a varchar2(n) that is blank padded to it's maximum length. The implementation of a char physically on disk is identical to a varchar2 -- there is a length byte for a char(1) just as there is for a varchar2(1). -----Original Message----- To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> Date: Fri, 31 Oct 2003 08:04:27 -0800 Hi, Some people here are telling me that using char(1) is better than varchar2(1) for a field code. I do not see why. I never used char as it may cause problems when doing some comparisons. Any reasons ? Stephane Paquette Administrateur de bases de donnees Database Administrator Standard Life www.standardlife.ca Tel. (514) 499-7999 7470 and (514) 925-7187 [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Stephane Paquette INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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.net -- Author: Saminathan INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
