I thought LIMIT limited you to N number of CONCURRENT record. ie. limit 10 or limit 20
I believe Ross would like to select select 1000 records and then do a sub select of records 1-20 and then 21-40 on this record set Or am I barking up the wrong tree? Andy On Fri, 2004-04-02 at 14:05, Andy Eastham wrote: > Ross, > > You'll need to do an order by on both columns (so you'll need to index both > columns in a compound index), then use the LIMIT keyword which is designed > for exactly this job. > > Alternatively, unload the data using mysqldump, then edit the table > definition to have an autoincrement column, then reload the data. > > Find more information in the manual at > http://www.mysql.com/doc/en/index.html > > > Andy > > -----Original Message----- > From: Ross Honniball [mailto:[EMAIL PROTECTED] > Sent: 02 April 2004 13:48 > To: [EMAIL PROTECTED] > Subject: How do I determine the row number or key when table has no key > fields > > eg. say a table is created using: > > create table fred (f1 char(10), f2 int) > > Then it has neither keys nor an AUTO_INCREMENT field. > > Let's say 1000,000 records are then inserted into table fred. > > I then say 'select * from fred' and loop through results writing to a web > page. > > I stop writing to the web page after say 20 records. > > The user hits 'next page'. > > I want to say 'select * from fred where ?field? > ?value? > > Where ?field? and ?value? are what I want to know. > > Surely there is some kind of 'record number' or something available in > mySQL for me to : > > 1. Retrieve and save > 2. Query against > > I'm new to this mailing list. Apologies if I am asking this question of an > inappropriate email address. > > Regards ... Ross > > . Ross Honniball JCU Bookshop Cairns Supervisor > . James Cook Uni, McGreggor Rd, Smithfield, Qld. 4878, Australia > . Ph:07.4042.1157 Fx:07.4042.1158 Em:[EMAIL PROTECTED] > . There are no problems. Only solutions. > > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] > -- perl -e 'print qq^;@) [###]^^qq^z\.MY{eLQ9^' in:control developer, Telindus, RG27 9HY DDI: +44 1256 709211, GSM: +44 7810 636652 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
