• MySQL

MySQL

Dynamic SQL , conditional where

SELECT first_name, last_name, subsidiary_id, employee_id
  FROM employees
 WHERE ( subsidiary_id    = :sub_id OR :sub_id IS NULL )
   AND ( employee_id      = :emp_id OR :emp_id IS NULL )
   AND ( UPPER(last_name) = :name   OR :name   IS NULL )


select * from mysql.user
where (user=NULL or NULL is null) 
and (host=NULL or NULL is null)

select * from mysql.user
where (user='root' or 'root' is null) 
and (host=NULL or NULL is null)

select * from mysql.user
where (user='root' or 'root' is null) 
and (host='127.0.0.1' or '127.0.0.1' is null)

MySql workbench Slackware64 14.1

• wget http://dev.mysql.com/get/Downloads/MySQLGUITools/mysql-workbench-community-6.1.7-1.el6.x86_64.rpm

• cp ~/Downloads/mysql-workbench-community-6.1.7-1.el6.x86_64.rpm /tmp
• cd /tmp
• rpm2tgz mysql-workbench-community-6.1.7-1.el6.x86_64.rpm
• installpkg mysql-workbench-community-6.1.7-1.el6.x86_64.tgz

mysqldump

• mysqldump -h hostx -u userx -ppassx dbname > /tmp/dump.sql

Error

• mysqldump: Couldn't execute 'SET OPTION SQL_QUOTE_SHOW_CREATE=1': Unknown system variable 'OPTION' (1193)