Free MCQsLearn App Download - Database Languages Practice Test PDF Download eBook p. 345
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"Update authorization allows modification of data, but no", database languages Multiple Choice Questions (MCQ) with choices reading, insertion, deletion, and retrieval for online computer science classes. Learn introduction to dbms questions and answers with free online certification courses for computer software engineer online degree.
Trivia Quiz on Database Languages PDF Download eBook
MCQ: Update authorization allows modification of data, but no
- Insertion
- Reading
- Deletion
- Retrieval
C
MCQ: The notation for finding the number of tuples in a relation, the aggregate function in SQL is
- count(*)
- count(@)
- count(%)
- count(?)
A
MCQ: Data model that uses a collection of basic objects, and the relationship among those objects, is known as
- Object-based Data model
- Entity relationship model
- Relational Model
- Semi-structured data model
B
MCQ: In SQL, dates specification by default is in the format
- mm/dd/yy
- yy/dd/mm
- yy/mm/dd
- dd/mm/yy
C
MCQ: At the end of the session, the program frees the statement handle and
- Disconnects from database
- Frees up connection
- Frees up SQL environment
- All of the Above
D