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MySQL is a relational database, meaning data is stored in tables. Each table has a set of columns, and each column has a specific data type.
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 […]
A scheduled event on MySQL is a task that runs according to a schedule. It is a named database object containing one or more SQL statements to be executed regularly, beginning and ending at a specific date and time. Scheduled events are similar to cron jobs on Linux or task […]
You can retrieve information about the columns in a MySQL view using the INFORMATION_SCHEMA database. To find the data types of the columns in your view, you can execute the following query: Replace your_database_name with the name of your database, and your_view_name with the name of your view. This query […]
In MySQL, VARCHAR and LONGTEXT are two different data types used to store character strings. VARCHAR is a variable-length character string type that can store up to 65,535 characters. When you define a VARCHAR column, you need to specify the maximum number of characters it can hold. For example, if […]
In MySQL, the GROUP BY keyword is used with the SELECT statement to group the result set by one or more columns. When a SELECT statement includes the GROUP BY clause, the result set is divided into groups based on the unique values in the specified columns. Then an aggregate […]
MySQL query optimization is improving the speed and efficiency of database queries by reducing the amount of data that needs to be scanned, increasing the use of indexes, reducing the complexity of the question, and improving the way the data is retrieved and processed. It involves analyzing query execution plans, […]
SRID stands for Spatial Reference Identifier, a unique identifier assigned to a spatial reference system used in Geographic Information Systems (GIS). SRIDs define the coordinate system, projection, and geographic location of the data being used in a GIS system. SRIDs are used in maps like Google Maps and Yandex Maps […]
Dapper is an open-source micro-ORM (Object-Relational Mapper) for dotNET. It is designed to be lightweight and fast and is often used as an alternative to larger ORMs such as Entity Framework. An ORM tool simplifies interacting with a database from within an application. It does this by mapping objects in […]
Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides scalable computing capacity in the cloud. It allows you to launch virtual machines (known as instances), which are pre-configured with a variety of operating systems, and configure the resources of each model, such as CPU, memory, and storage, […]
Debezium is an open-source distributed platform for change data capture (CDC). It provides a scalable and reliable way to capture and stream changes from databases (such as MySQL, PostgreSQL, and MongoDB) to event streams in Apache Kafka. Debezium can track changes to data in real-time, making that data available for […]