Database Management Systems (DBMS)
Identify the correct definition of Data Definition Language (DDL).
- A. A DBMS component that determines the most efficient way to execute a given database query.
- B. A type of database that organizes data into tables of rows and columns linked by defined relationships.
- C. A set of techniques used in a DBMS to ensure correct results for concurrent transaction operations.
- D. A subset of SQL commands used to define and modify database structures, such as CREATE and ALTER. ✓
Correct answer
D. A subset of SQL commands used to define and modify database structures, such as CREATE and ALTER.
Explanation
Data Definition Language (DDL) refers to a subset of SQL commands used to define and modify database structures, such as CREATE and ALTER.