MySQL(4.2)
- Jenni Wallin
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 <int_value> - maximum number of connections in a connection pool
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:
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.
- Place the downloaded jar file in the
$MZ_HOME/3pp directory. - Restart the Platform and EC/ECSAs for the change to take effect.
The following applies from version 8.0.28 of the MySQL Connector (mysql_connector_8.0.28):
If you want to run LOAD DATA LOCAL in your sql for a database agent, you must proceed as follows:
You must add the following to my.cnf for the server:
[server] local_infile=1
Alternatively, you must log in to the server and change local_infile to:
SET GLOBAL local_infile=1;
Furthermore, you must use "Advanced Connection Setup" in the database profile with connection string:
jdbc:mysql://<host>:<port>/<database>?allowLoadLocalInfile=true
For example:
jdbc:mysql://172.17.0.2:3306/guran?allowLoadLocalInfile=true
In addition, you must carry out the following preparations before attempting to connect to a MySQL database.
When performing table lookups to a MySQL database, the result may not be updated unless the Execution Context is restarted. Use the following MySQL statement to avoid this issue:
SET GLOBAL TRANSACTION ISOLATION LEVEL 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 executioncontext.xml file:
<property name="mysql.connectionpool.maxlimit" value="6"/>
Note!