Database Systems Practice Test 77
Selection Operation in Query Processing Quiz Questions and Answers PDF Download - 77
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The Quiz: A3 search performs retrieval of multiple records by using a primary index specifying the; "Selection Operation in Query Processing" App Download [Free] with answers: inequality comparison on a nonkey attribute, equality comparison on a key attribute, inequality comparison on a key attribute, and equality comparison on a nonkey attribute for online degrees. Learn Query Processing Questions and Answers, Apple eBook to download free sample for database administrator certification.
Selection Operation in Query Processing Questions and Answers PDF Download: MCQ 77
A3 search performs retrieval of multiple records by using a primary index specifying the
- Equality comparison on a key attribute
- Inequality comparison on a nonkey attribute
- Equality comparison on a nonkey attribute
- Inequality comparison on a key attribute
The process of transforming data into an unreadable form is known as
- Encryption
- Modulation
- Theft
- Forgery
In an E-R diagram, the attributes of a relationship set is represented by
- Circle
- Square
- Divided rectangle
- Undivided rectangle
We can choose the tuples to be updated by using a query, as we could for
- Insert
- Delete
- Both A and B
- Retrieval
After turning off the automatic commit, transactions must be committed or rolled back explicitly using the method
- conn.commit()
- conn.setCommit()
- conn.getCommit()
- conn.setAuto()
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Selection Operation in Query Processing Practice Tests
- Querying of unstructured textual data is referred to as
- Component that translates DML statements in a query language into an evaluation plan having low-level instructions, is referred as
- Tuples inserted must have correct number of
- Many database systems do not support
- Specifically, result of a relational query is a