Which SQL keyword is used within a SELECT query to filter records matching a specified pattern using wildcards? MCQ with Answer and Explanation

Question
Which SQL keyword is used within a SELECT query to filter records matching a specified pattern using wildcards?
A. LIKE
B. IN
C. BETWEEN
D. EXISTS
Answer: Option A
Solution (By JKSSB Mock Tests)
The LIKE operator is specifically used in a WHERE clause to perform pattern matching on string columns using wildcards (% and _).
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
Which normal form addresses partial dependencies, i.e., non-prime attributes dependent on part of a composite primary key?
A. 2NF
B. 3NF
C. BCNF
D. 1NF
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Correct Answer: Option A

Explanation:
Second Normal Form (2NF) eliminates partial dependencies by ensuring all non-key attributes are fully functionally dependent on the entire primary key.
This question belongs to: Computer Database Management System (DBMS)
Question #2
In SQL, which statement is used to change a user's password?
A. MODIFY USER
B. CHANGE USER
C. UPDATE USER
D. ALTER USER
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Correct Answer: Option D

Explanation:
ALTER USER is used in many DBMS to change user attributes, including password. The exact syntax varies by DBMS.
This question belongs to: Computer Database Management System (DBMS)
Question #3
Which SQL command is used to reverse or undo all modifications made during the current transaction that have not yet been committed?
A. SAVEPOINT
B. ROLLBACK
C. REVERT
D. UNDO
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Correct Answer: Option B

Explanation:
The ROLLBACK command is a TCL statement used to undo transactions, restoring the database to its last committed or safe state.
This question belongs to: Computer Database Management System (DBMS)
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