Sleep Query in MySQL Database can be seen when we use the SHOW FULL PROCESSLIST. It shows currently running queries on the database. The question is why some sleeping queries are created, how long they wait the queries exist and their impact on the Server.
The MySQL high CPU usage is caused due to some of the common reasons like table fragmentation, slow queries, lock waits, etc. We will see some common ways to minimize CPU usage percent.
Setting Variables in MySQL Query tutorial will teach you set and get variable in MySQL. Using SET Set a variable to be the result of a select statement using INTO
Setting row number in MySQL query tutorial we will learn about setting extra column which will display extra column. It has values like auto-increment id.
MySQL SELECT with BETWEEN AND NOT BETWEEN tutorials will help you to understand the basic usage of BETWEEN and NOT BETWEEN Conditions
MySQL UPDATE various ways will teach you to use update statement with respect to various problem statement. Some of the problem statement are as follow.
SELECT Clause with Limit and Offset relationship tutorial will teach you usage of LIMIT and OFFSET in MySQL queries.
MySQL INSERT in various ways tutorial will teach you how to insert into MySQL table in various way. In most aspect we have to perform INSERT operation in MySQL based on the requirement.
Mysql DELETE query in various ways tutorial we will learn about multiple ways we can delete the record apart from just a basic delete.
Mysql SELECT with CASE or IF Explained: The CASE statement checks the condition if it is true then returns the results. Once a condition is true then it stop reading the next condition. If any case doesn’t matches then it returns the ELSE clause If we don’t write any ELSE condition then it will return