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There are so many MySQL functions that commonly used to minimize the statements like string operation functions, date time functions, aggregate functions etc. MySQL LAST_INSERT_ID To get the last generated sequence number of the last […]
If statement allows you to execute a set of SQL statements based on condition. If certain condition returns true then statement executes, otherwise not. Example: DELIMITER $$ CREATE PROCEDURE MyifCond() BEGIN DECLARE x INT; SET […]
Cursor allows you to iterate a group of rows fetched by a query and process each row. It is read only, non-scrollable and asensitive. Declare a cursor: DECLARE <cursor_title> CURSOR FOR SELECT_statement; Open a cursor: […]
MySQL allows you to loop statement for executing a block repeatedly based on a condition. These are like WHILE, REPEAT and LOOP. WHILE LOOP: It checks the expression at the beginning of each iteration. Example: […]
In MySQL you can list or show all stored procedures and manage more efficiently. Display source code of stored procedure: Use SHOW CREATE PROCEDURE statement to display source code of a particular stored procedure. SHOW […]
All the stored procedure needs parameters to make more flexible. It has one of these three modes i.e. IN, OUT or INOUT. IN: Default mode i.e. calling program has to pass an argument to the […]
A segment of declarative SQL statements which is stored inside the database catalog is called stored procedures, invoked by a triggers. Advantages: When stored procedures are created it is compiled and stored in the database […]
One of the important thing for achieving MySQL database performance is indexing that allows faster gathering of data to optimize MySQL database. Here is the list to Optimize MySQL database: Indexing in MySQL will create […]
When migrate data you need to compare two tables and identify the unmatched results records. Suppose you have two tables table1 and table2 with same columns and values. If any one table has any extra […]
Using MySQL ORDER BY Clause you can sort table columns by ascending or descending. Suppose we have a table ‘tbl’ with column ‘name’ and a row like below values: 1 1B 10 2 10C 2A […]