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This section contains information that is specific to the database type MySQL.

Supported Functions

 The MySQL database can be used with:

  •  Database Bulk Lookup Functions (APL)
  •  Database Table Related Functions (APL)
  •  Event Notifications
  •  Prepared Statements (APL)
  •  SQL Collection/Forwarding Agents
  •  SQL Loader Agent
  •  Task Workflows Agents (SQL)

Properties

When selecting the MySQL database type, you can configure the following property using the Properties tab in the Database profile:

mysql.connectionpool.maxlimit


Preparations

The MySQL driver has to be downloaded to the Platform in order to connect to a MySQL database from.

You must proceed as follows:

  1. Go to the MySQL web page and download Connector/J from MySQL Connectors:
    https://dev.mysql.com/downloads/connector/j/

    Note!

    For supported versions, see Database Types.

    You may have to disable any popup blockers you have activated in order to find it.

  2. Place the downloaded jar file in the $MZ_HOME/3pp directory.

  3. Restart the Platform and EC/ECSAs for the change to take effect.


In addition, you must carry out the following preparations before attempting to connect to a MySQL database. The next step is to set the necessary transaction isolation levels. Edit the mysqld configuration files by adding this line: 

mysqld Configuration File
transaction-isolation = READ-COMMITTED


To decrease re-connection overhead, database connections are saved in a connection pool. To set the connection pool size, set the Execution Context property mysql.connectionpool.maxlimit in the relevant <pico>.conf file:

$ mzsh topo set topo://container:<container>/pico:<pico name>/val:config.properties.mysql.connectionpool.maxlimit 45
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