How to Enable SQL Statement Logging in Grails?

Logging SQL Statements in Grails

Enhancing your Grails application's performance requires monitoring its database interactions. To do so, logging SQL statements is a crucial step. In this article, we'll delve into the solution to the question of how to enable SQL statement logging in Grails.

To configure SQL statement logging, the following steps should be taken:

1. DataSource Configuration:
   Locate the DataSource.groovy file in your Grails application. Under the datasource closure, add the following line:

   logSql = true

2. Application Context:
   Grails uses Spring under the hood, so we can leverage its logging capabilities. In the application.yml file, add the following configuration:

   logging:
     config:
    grails.orm.logging: true

3. Logging Levels:
   By default, SQL logging output is categorized as DEBUG. To change the logging level, edit the application.yml file and set grails.orm.logging.level accordingly. For instance, to log only errors, set it to ERROR.

Upon completing these steps, all SQL statements executed by Grails will be logged. The output can be viewed in the console or captured in a file specified in the Spring logging.file configuration.

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