You can find duplicate rows in the mysql table, just use below select query, to find duplicate rows in Oracle, Sql, Mysql, DB2. SELECT columnName, COUNT(*) as countFROM selectedTableGROUP BY columnNameHAVING COUNT(*) > 1; You came from below query:how to find duplicate rows in sql server 2008how to find duplicate rows in sql and deletehow […]
1. Using MyISAM rather than InnoDB MySQL has a number of database engines, but you’re most likely to encounter MyISAM and InnoDB. MyISAM is used by default. However, unless you’re creating a very simple or experimental database, it’s almost certainly the wrong choice! MyISAM doesn’t support foreign key constraints or transactions, which are essential for […]
If you are working on a big mysql query and want to get the mysql query as email when it finishes use the below trick. Go to mysql command:Set pager directive: mysql> pager mail -s “subject” emailme@domain.comPAGER set to ‘mail’ -s “subject” emailme@domain.com The trick uses pager directive to redirect the query output result to […]
