How to create and call stored procedure in MySQL with IN and OUT parameters

It's hard to remember exact syntax of, how to create stored procedure in MySQL, until you are creating and working on stored procedure frequently, simply because syntax is not a one liner. You need to remember exact syntax, if you are using MySQL database from command line. What help in this case is, quick examples. In last couple of MySQL tutorial we have seen How to find second highest salary and How to join 3 tables in one query; In this MySQL tutorial we will see couple of examples of creating stored procedure and calling stored procedure using IN and OUT parameters. All these MySQL examples are simple and help you to understand syntax of creating stored procedure with parameters in MySQL. These examples are tested in MySQL 5.5 database. We will also use following employee table to create and test these stored procedures :
 
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