Stored procedures with sqlectron5/17/2023 ![]() Here, we've passed two parameters' values in a procedure. MySQL - Creating the stored procedure with cus_id and max_amount as parameters Where Customers.customer_id = cus_id AND Orders.amount < max_amount Where Customers.customer_id = AND Orders.amount < - Creating the stored procedure with cus_id and max_amount as parametersĬREATE PROCEDURE order_details (cus_id INT, max_amount INT) ON Customers.customer_id = Orders.customer_id SELECT Customers.customer_id, Customers.first_name, Orders.amount SQL Server - Creating the stored procedure with cus_id and max_amount as parametersĬREATE PROCEDURE order_details INT, INT AS PostgreSQL, MySQL - Calling the stored procedure with 'USA' as parameter valueĪ stored procedure can also take multiple parameters. Calling the same stored procedure again with another parameter value 'UK' SQL Server - Calling the stored procedure with 'USA' as parameter value Here, ctr is the parameter which we need to pass while calling the stored procedure. WHERE Country = CREATE PROCEDURE ctr_customers (ctr VARCHAR(50))ĬREATE PROCEDURE ctr_customers (ctr VARCHAR(50)) SQL Server CREATE PROCEDURE ctr_customers VARCHAR(50) AS So instead of writing the same code again, we can create a stored procedure and call it with different values. Notice that in the above two examples, everything is the same except the value to lookup in the country column. So we'll write our SQL statement as, SELECT *Īnd again if we want to fetch records where the value is UK in the country column, we'll write out SQL statement as, SELECT * Suppose we want to fetch records where the value is USA in the country column. We can pass our own data to stored procedures so the same SQL command works differently for different data. Now whenever we want to fetch all customers who live in the USA, we can simply call the procedure mentioned above. PostgreSQL CREATE PROCEDURE us_customers () SQL Server CREATE PROCEDURE us_customers AS We create stored procedures using the CREATE PROCEDURE command followed by SQL commands. They can accept parameters, and perform operations when we call them. Stored procedures are similar to functions in programming. We make stored procedures so that we can reuse statements that are used frequently. In SQL, stored procedure is a set of statement(s) that perform some defined actions.
0 Comments
Leave a Reply. |