![]() Code maintainability is enhanced, since different applications can share the stored procedure.Round trips made to the database server by an application are minimized.These predefined subroutines help in moving the business logic to the database, which offers a few benefits: Following are the disadvantages of stored procedures.Stored procedures are user-defined SQL statements that are stored in a MySQL database and executed on-demand to perform a specific database operation. The stored procedure makes the database more secure by granting only required privileges to the application.Īlong with the pros, stored procedures come with cons as well.Instead of writing the same logic multiple times in your application, you can write it in the stored procedure as a centralized function and you can call that procedure again and again without duplication.It is because the application sends only the procedure name to the MySQL server instead of sending lengthy queries/statements. Stored procedures help reduce the network traffic between an application and a MySQL server. ![]() Below we have listed some top pros of stored procedure. There are numerous advantages of using stored procedures in your application. If you specify the parameters in the procedure definition but don’t mention them in the procedure call then you will get an error. ![]() Remember to pass the correct arguments to the procedure call. Following is the syntax to call the procedure.ĬALL proc_name() Code language: SQL (Structured Query Language) ( sql ) To invoke the stored procedure, the CALL statement is used. This way you can create a stored procedure. You can write a simple statement such as SELECT or INSERT, or you can write multiple statements using a BEGIN END block. procedure_body – In the body, you write valid SQL statements.Read the official documentation for more information. Characteristics – You can choose any of the characteristics from the above-mentioned set.On the other hand, the INOUT performs combined work of the IN and OUT parameters. The OUT parameter is the value that the procedure will return. The IN parameter specifies the input value that you are passing to the procedure from the procedure call. parameters – There are three types of parameters – IN, OUT, INOUT.proc_name – Any name you can give to the procedure.IF NOT EXISTS – It will create a new stored procedure only if the current procedure name doesn’t exist already in the database.CREATE PROCEDURE – It is a statement to create a stored procedure.Valid SQL routine statement Code language: SQL (Structured Query Language) ( sql ) ![]() It is something like a function in any programming language.ĬREATE PROCEDURE proc_name() What is Stored Procedure?īy definition, the stored procedure is a set of declarative SQL statements stored in the MySQL server. Moreover, we will clear out the theory first so that you will understand the topic later when we dive into real examples. Before We Startīefore we start, let me tell you that even if you don’t have any knowledge of stored functions or stored procedures in MySQL, you shouldn’t worry because we will cover everything about the stored procedure here. We will see them one by one in separate articles as an individual tutorial. There are a bunch of different topics in MySQL stored procedures, such as delimiter, alter procedures, show procedure, drop procedure, etc. This is going to be an introductory tutorial about MySQL stored procedures where we will discuss what is stored procedure, its syntax, advantages and disadvantages. In this article, we will understand what a stored procedure is in MySQL and further understand it using the syntax. ![]()
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