Database Systems Practice Test 47
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The Quiz: SQL supports basic set operations on relations that includes; "Modification of Database" App (iOS, Android) with answers: intersect, union, and except for applied computer science. Study SQL Interview Questions and Answers Questions and Answers, Apple e-Book to download free sample for accelerated computer science degree online.
Modification of Database Quiz with Answers PDF Download: MCQs 47
SQL supports basic set operations on relations that includes
- Union
- Intersect
- Except
- All of the above
Since duplicate retention is the default, we shall not use
- Distinct
- All
- Describe
- Whole
The command to delete the relation is
- Delete from *example*
- Delete about *example*
- Abort from *example*
- Abort about *example*
A special character, can be used to delimit the different attributes of a record, such as
- Question mark
- new-line character
- curly braces
- Comma
Indices whose search key formation is different from the sequential order of the file, are known to be
- Non-clustering indices
- Secondary indices
- Primary indices
- Both A and B
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