Re: _rowid

2002-11-14 Thread horizonx
Hi Benjamin, > > Isn't _rowid some type of internal variable? What is its exact > purpose and > > significance? Thanks for nailing the matter down. > http://lists.mysql.com/cgi-ez/ezmlm-cgi?1:msn:39492:cnfpdcnkgalicmjgekef "My main concern is that if we would make ROWID's available for the

_rowid

2002-11-06 Thread horizonx
What about the following info in the manual p. 55? "Add a PRIMARY KEY or UNIQUE key to the table and use this. New in Version 3.23.11: If the PRIMARY or UNIQUE key consists of only one column and this is of type integer, one can also refer to it as _rowid" Isn't _rowid some type of internal varia

RE: Select by row number

2002-11-02 Thread horizonx
> There is no row number in MySQL. You should use ORDER BY to > retrieve data in particular order. What about the following info in the manual p. 55? Add a PRIMARY KEY or UNIQUE key to the table and use this. New in Version 3.23.11: If the PRIMARY or UNIQUE key consists of only one column and thi

RE: Select by row number

2002-11-01 Thread horizonx
There is a "primary key" which is not the main order to access rows. What I am emulating is a large memory space and the "primary key" is just used not to duplicate rows. In the current DB I use, I simply use the row number as my "memory pointer". Since rows are fixed length, it should be a strai

Select by row number

2002-10-31 Thread horizonx
Hi, I need a 20 GB + DB that I'd like to access by row number or physical order. Of course I could use a special rownum column but that would be a waste of space plus require an additional key whereas mySQL already maintains such table internaly. Hope this makes sens, Best, Thierry www.arbitr