Which one of the following is used to define the structure of the relation ,deleting relations and relating schemas ?
A. DML(Data Manipulation Langauge)
B. DDL(Data Definition Langauge)
C. Query
D. Relational Schema
Answer:A
Which one of the following is used to define the structure of the relation ,deleting relations and relating schemas ?
A. DML(Data Manipulation Langauge) B. DDL(Data Definition Langauge) C. Query D. Relational Schema