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Database management involves the administration, maintenance, and optimization of a database system throughout its lifecycle, including tasks such as data storage, retrieval, security, backup, and performance tuning, ensuring the integrity and efficiency of the database in support of organizational goals and applications.
Author: Philip McMahon In April, the Guardian significantly shifted its content management system (CMS) by migrating from MongoDB to PostgreSQL on Amazon RDS. The Guardian’s CMS tool, Composer, which produces most of its content, was previously backed by a MongoDB database on AWS. This database held about 2.3 million content […]
If you want to insert rows from a SELECT query into another table, ensuring that unique rows are inserted (based on the unique constraints of the target table), you can use the INSERT IGNORE statement. The INSERT IGNORE the command will insert rows from the SELECT query into the target […]
In MySQL, TINYINT is a data type used to store small integer values. Let’s delve into its specifics and see how it compares to other integer types: TINYINT Comparison with Other Integer Types: Key Differences: When designing a database schema, choosing the appropriate integer type based on the expected range […]
In MySQL, there isn’t a native BOOLEAN data type. However, BOOLEAN it is an alias for TINYINT(1). When you define a column of type BOOLEAN, MySQL internally creates it as a TINYINT(1) column. In this context: For example, the following two table definitions are equivalent: When you insert values into […]
Stored procedures in MySQL provide a powerful way to encapsulate SQL statements into a routine that can be stored in the database and invoked as required. They offer advantages such as improved performance, reusability, and maintainability. This article delves into the concept of stored procedures in MySQL and their benefits […]
The SHOW STATUS command in MySQL provides information about system status variables. These variables present a snapshot of the server’s operations and performance at any moment. Due to the extensive number of status variables, discussing each one would be exhaustive. I’ll provide an overview of some key variables and their […]
Each client that communicates with a MySQL server establishes a separate connection. Monitoring and analyzing these connections is crucial for database performance tuning, capacity planning, and ensuring the server isn’t overwhelmed with too many connections. How to Monitor Connection Count in MySQL: Analyzing the Connection Count: This command will show […]
To get the MySQL version using an SQL command, you can use the SHOW VARIABLES command with a WHERE clause to filter for the version variable. Here’s the SQL command: When you execute this command, it will return the MySQL version in the result set. The output will have two […]
We can use the SHOW EVENTS statement to list MySQL’s scheduled events by SQL. The syntax for the SHOW EVENTS statement is as follows: The schema_name parameter is optional. If you specify a schema name, the SHOW EVENTS statement will only list the scheduled events in that schema. The pattern […]
We can create scheduled events by SQL on MySQL using the CREATE EVENT statement. The syntax for the CREATE EVENT statement is as follows: The event_name parameter is the name of the event. The schedule parameter specifies when the event will be executed. The event_body parameter is the SQL statement […]