Which of the following is the original purpose of SQL?
A. To specify the syntax and semantics of SQL data definition language
B. To specify the syntax and semantics of SQL manipulation language
C. To define the data structures
D. All of the above
Answer: Option D
Solution (By Examveda Team)
Option A: To specify the syntax and semantics of SQL data definition language - SQL was originally designed to define and manipulate data in databases, including creating and modifying database schemas. This option correctly describes one of the original purposes of SQL.Option B: To specify the syntax and semantics of SQL manipulation language - SQL includes commands for querying and manipulating data stored in a database. This option correctly describes another original purpose of SQL.
Option C: To define the data structures - While SQL is used to define database structures such as tables and indexes, this statement alone does not encompass the original full scope of SQL's purposes.
Option D: All of the above - This option suggests that SQL serves all the purposes mentioned in Options A, B, and C. Given that Options A and B correctly describe SQL's original purposes, Option D is the correct answer.
Conclusion:
SQL was originally developed to specify both the syntax and semantics of its data definition language (DDL) for defining database structures and its manipulation language (DML) for querying and modifying data. Therefore, the correct answer is Option D: All of the above.
You can add a row using SQL in a database with which of the following?
A. ADD
B. CREATE
C. INSERT
D. MAKE
The command to remove rows from a table 'CUSTOMER' is:
A. REMOVE FROM CUSTOMER ...
B. DROP FROM CUSTOMER ...
C. DELETE FROM CUSTOMER WHERE ...
D. UPDATE FROM CUSTOMER ...
A. limits the column data that are returned.
B. limits the row data are returned.
C. Both A and B are correct.
D. Neither A nor B are correct.
Which of the following is the original purpose of SQL?
A. To specify the syntax and semantics of SQL data definition language
B. To specify the syntax and semantics of SQL manipulation language
C. To define the data structures
D. All of the above

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