Two important subsets of SQL that every database professional should understand in Database Training are Data Definition Language (DDL) and Data Manipulation Language (DML). DDL commands focus on defining and modifying the structure of database objects like tables, indexes, and schemas. With the help of SQL commands in DBMS, you can create and drop databases and tables. SQL offers you to use the function in a database, create a view, and stored procedure. Learn about SQL Data Manipulation Language (DML) commands, including INSERT, SELECT, UPDATE, and DELETE, for efficient data management. DML commands are used to manipulate the data stored in database tables. With DML, you can insert new records, update existing ones, delete unwanted data or retrieve information.