In MS SQL stored procedure, you can declare variables anywhere between “Begin” and “end”. The following table gives the difference between MS SQL and MySQL data related functions. Using data functions inside stored procedure is pretty common. IF(SELECT count(*) FROM tableName WHERE ColName='empType') > 0 THEN MySQL equivalent of the above using IF condition: IF EXISTS(SELECT 1 FROM #tableName WITH(NOLOCK) WHERE ColName='empType' ) For this, I used IF EXISTS in MS SQL, which should be converted to MySQL IF command as explained below. MS SQL IF condition IF condition syntax:Īnother common use of if condition is to check whether a query returned any rows or not and if it returns some rows, do something. I’ve used lot of IF conditions in my stored procedures and triggers, which didn’t work after the conversion to MySQL, as the syntax is different as shown below.
The syntax for temporary table creation differs as shown below.Įmp_id VARCHAR(10)COLLATE Database_Default PRIMARY KEY,Įmp_Name VARCHAR(50) COLLATE Database_Default,Įmp_Code VARCHAR(30) COLLATE Database_Default,Įmp_Department VARCHAR(30) COLLATE Database_Default In my MS SQL code, I’ve created few temporary tables that are required by the application.
The basic stored procedure creation syntax itself is different.ĬREATE PROCEDURE storedProcedureName( IN someString VarChar(150) )
STORED PROCEDURE IN MYSQL WORKBENCH MANUAL
To perform this manual conversion, you need to understand the key differences between MS SQL and MySQL queries.ĭuring my conversion from Microsoft SQL Server to MySQL database, I encountered the following MS SQL statements and queries, which was not compatible with MySQL and I have to convert them as shown below. You have to manually convert these over to MySQL database.
STORED PROCEDURE IN MYSQL WORKBENCH HOW TO
When you migrate from MS SQL to MySQL, apart from migrating the data, you should also migrate the application code that resides in the database.Įarlier we discussed how to migrate MS SQL to MySQL database using the WorkSQL Workbench tool.Īs part of the migration, it will only convert tables and copy the data, but it will not convert triggers, views and stored procedures.
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