(A) Relationships
(B) Reports
(C) Queries
(D) Tables
Tag: DBMS Mcq
Which has a width of 8 bytes?
(A) Date/Time
(B) Hyperlink
(C) Number
(D) Memo
Which name must be unique within a database?
(A) Record
(B) Character
(C) Table
(D) Field
Which key uniquely identifies each record?
(A) Field name
(B) Unique key
(C) Key record
(D) Primary key
To restore the database to the last committed state which command is used?
(A) Rollback
(B) Commit
(C) Savepoint
(D) None of the above
To save any transaction permanently into the database which command is used?
(A) Rollback
(B) Savepoint
(C) Commit
(D) None of the above
To delete existing row in a table which command is used?
(A) Update
(B) Delete
(C) Insert
(D) Append
A file is a collection of all related?
(A) Database
(B) Fields
(C) Records
(D) Rows and Columns