MySQL
This page describes how to create and maintain connections to your MySQL database.
Before you can write your transformed data to a table in MySQL, you should first establish a connection to your MySQL database.
Supported versions
MySQL database versions 5.6, 5.7, and 8.0 are supported. This includes managed database instances hosted by AWS RDS.
Create a MySQL connection
Simple example
A MySQL connection can be created as simply as follows:
Note that a MySQL connection must specify the database it is connecting to within the connection string.
This means that in order to connect to multiple databases within your account, you need to create at least one connection per database.
Full example
The following example also creates a MySQL connection but additionally limits the maximum number of concurrent connections to your database by configuring an additional option MAX_CONCURRENT_CONNECTIONS
:
For the full list of connection options with syntax and detailed descriptions, see MySQL connection with SQL.
Once you've created your connection, you are ready to move on to the next step of building your data pipeline: reading your data into SQLake with an ingestion job.
Alter a MySQL connection
Certain connection options are considered mutable, meaning that in some cases, you can run a SQL command to alter an existing CDC connection rather than create a new one.
To change the database you are connecting to but keep everything else the same without having to create an entirely new connection, you can run the following command:
To check which specific connection options are mutable, see: MySQL connection with SQL
Drop a CDC connection
If you no longer need a certain connection, you can easily drop it with the following SQL command:
However, note that if there are existing tables or jobs that are dependent upon the connection in question, the connection cannot be deleted.
For more details, see: DROP CONNECTION
Last updated