How does mysql change several rows to several columns?
This article is to share with you about mysql how to turn a few lines into several columns, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.
How does mysql change several rows to several columns?
1. Create a new table
two。 By adding data to the newly created table, you can see the table structure
3. Use the CASE command to implement row-to-column conversion, resulting in
MySQL is a relational database management system developed by the Swedish company MySQL AB and belongs to the products of Oracle. MySQL is one of the most popular relational database management systems. In the aspect of WEB application, MySQL is one of the best RDBMS (Relational Database Management System) application software. MySQL is a relational database management system in which relational databases store data in different tables instead of all data in one large warehouse, which increases speed and flexibility.
The above is how mysql turns a few rows into several columns. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.