Save typing effort for complex MySQL queries with custom variables or procedures

To save time and because it’s not that smart to repeatedly retype the same things multiple times, you can user custom variables in MySQL like that: SET @store := 1, @name_id := 71, @short_desc_id := 72, @desc_id := 73; SELECT CPE.sku AS sku, CPEVN.value AS name, CPEVSD.value AS short_description, CPEVD.value AS description FROM catalog_product_entity AS […]

Find duplicate entries in a MySQL Table

You can use the following query to get all duplicated records of a MySQL table having equal values for the respective field: SELECT fieldname, COUNT(*) FROM tablename GROUP BY fieldname HAVING COUNT(*) > 1 This query will give you a list of all the entries having the same value for fieldname. It also will show […]

External access to MySQL database

To gain external access to MySQL database (f.e. in PHPSTorm or an external PHPMyAdmin) you can do: GRANT necessary privileges: CREATE USER ‘wdn_live_user’@’%’ IDENTIFIED BY ‘***’; GRANT USAGE ON *.* TO ‘wdn_live_user’@’%’ IDENTIFIED BY ‘***’ WITH MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0 MAX_UPDATES_PER_HOUR 0 MAX_USER_CONNECTIONS 0; GRANT ALL PRIVILEGES ON `wdn_live`.* TO ‘wdn_live_user’@’%’; If the user already […]