> -----Original Message----- > On Thu, Nov 06, 2003 at 09:59:41AM -0800, Wan, Wenhua wrote: > > Hi there, > > > > Both Oracle and Informix use ROWID to uniquely represent the location of > > each row of data in a table. ROWID is basically a hidden column or > > pseudocolumn for each table, and it is the fastest way to retrive a row > from > > a table. Does MySql have similar field? If is, what's the name and how > to > > access it? > > > > Thank you very much in advance for your advice. > > http://www.mysql.com/doc/search.php?q=rowid >
Ok, so that search produces this: " If the PRIMARY or UNIQUE key consists of only one column and this is of type integer, you can also refer to it as _rowid (new in Version 3.23.11)." But that's not what a "ROWID" is compared to what I think the original poster was looking for. In Oracle for example, a ROWID is the unique address of a row in the database. Every row, unique key or not has a unique address. Is there such a thing in MySQL? ROWIDs are extremely useful for guaranteeing that you are manipulating the exact row that you think you are. Mike ---------------------------------------------------------------------- Michael Brando Senior Manager of Engineering Applied Biosystems 3833 North First Street San Jose, CA 95134-1701 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
