Explanation: Data Definition language is the language which performs all the operation in defining structure of relation. 2. Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database ?
A. DML(Data Manipulation Langauge)
B. DDL(Data Definition Langauge)
C. Query
D. Relational Schema
Answer:A
Explanation: Data Definition language is the language which performs all the operation in defining structure of relation. 2. Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database ?
A. DML(Data Manipulation Langauge) B. DDL(Data Definition Langauge) C. Query D. Relational Schema
Explanation: DML performs change in the values of the relation . 3. Create table employee (name varchar ,id integer)