Specifying the JDBC driver
The application server requires a JDBC driver to enable communication with the database. The JDBC driver that you provide to the deployment toolkit depends on the database management system to use with the deployment.
Procedure
- Locate the JDBC driver for your database management system. - If you are using PostgreSQL, download the latest driver from jdbc.postgresql.org. 
- If you are using Db2®, locate the IBM\SQLLIB\java\db2jcc4.jar file. 
- If you are using SQL Server, download the latest version of the Microsoft JDBC Driver for SQL Server that's compatible with your system from https://learn.microsoft.com/sql/connect/jdbc/download-microsoft-jdbc-driver-for-sql-server. Extract the contents of the download, and locate the file whose name matches the pattern mssql-jdbc-x.y.z.jre11.jar. 
 
- Copy the relevant driver file for your database management system to the toolkit\configuration\environment\common\jdbc-drivers directory. - Note: Ensure that the user you use to run the deployment commands has write permissions for the JDBC jar file. 
