This document provides information on database administration (DBA) tasks for various database platforms including MySQL, PostgreSQL, SQL Anywhere, SQL Server, DB2 Express, and Oracle. It discusses topics such as migration, backup, and recovery procedures for each database platform. Sections provide details on migrating from SQL Server 2008 R2 to MySQL, backup and recovery steps for PostgreSQL 9.4, backup procedures for SQL Server 2014, and user and object management for Oracle 11G/12C.