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Seena, >How to check whae are tables are having how many >indexes on which columns ? http://dev.mysql.com/doc/mysql/en/show-index.html and alternatively if you're using 5.03 or later, http://dev.mysql.com/doc/mysql/en/statistics-table.html eg an approximate equivalent of SHOW KEYS FROM tbl [FROM db] would be SELECT * FROM information_schema.statistics WHERE table_name='tbl' [AND table_schema = 'db'] PB ----- Seena Blace wrote: How to check whae are tables are having how many indexes on which columns ?Thomas Sundberg <[EMAIL PROTECTED]> wrote:-----Original Message----- From: Seena Blace [mailto:[EMAIL PROTECTED]] Sent: den 11 maj 2005 23:58 To: mysql@lists.mysql.com Subject: table optimisation Hi, I have been noticing table performanace issue when # of rows grows more.How to tune that table?Adding index on the column or columns that are often used in queries could be a start. Performing full table scan on large, unindexed tables can take quite longtime when the number of rows are increasing. /Thomas --------------------------------- Yahoo! Mail Stay connected, organized, and protected. Take the tour |
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