java.sql.SQLException: Unknown system variable 'tx_isolation'

Question

I am using play framework and I want to connect db, but I can\'t because I am getting following error:

play.api.Configuration$$anon$1: Configuration error[Ca         


        

Answer 1

If you are using MYSQL8, try to show variables like 'transaction_isolation'. Mysql8 has renamed tx_isolation to transaction_isolation.

Answer 2

I was also getting the same error (when I am using the mysql6 database in mysql5 it was working fine) then I changed my connector jar from mysql-connector-java-5.1.46.jar to mysql.jar then the problem gone.

Answer 3

I had a same problem. I upgraded my MySql Connector and solved my issue. try to use version 8 , like this:

<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.13</version>
</dependency>