Database Systems Practice Test 345
Database Languages Quiz Questions and Answers PDF Download - 345
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Database Languages Questions and Answers PDF Download: MCQ 345
Update authorization allows modification of data, but no
- Insertion
- Reading
- Deletion
- Retrieval
The notation for finding the number of tuples in a relation, the aggregate function in SQL is
- count(*)
- count(@)
- count(%)
- count(?)
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
In SQL, dates specification by default is in the format
- mm/dd/yy
- yy/dd/mm
- yy/mm/dd
- dd/mm/yy
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
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Database Languages Practice Tests
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