SQL Practice Test 31
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SQL Quiz: Learn SQL Online Free with MCQs PDF Download - 31
In SQL a specified predicate must be satisfied, defined at the clause
- From clause
- Where clause
- Select clause
- Define clause
Definition of deleting relations, and modifying relation schemas are provided through the command
- SQL DDL
- SQL DML
- View definition
- Embedded SQL
The execution of a SQL statement specifies the start of a
- Querying
- Data flow
- Transaction
- Standardization
For membership in a relation, SQL allows testing of
- Instances only
- Attributes only
- Tuples
- Distinct values
In SQL pattern matching, the special character _ is used to match any
- Character
- String
- Substring
- Number only
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Database Management System Practice Questions
- Database system which supports majority of concurrent users is classified as
- Operators in SELECT operation statement such as 'and' , 'or' and 'not' are classified as
- If in JOIN operation, conditions of JOIN operation are not satisfied then results of operation is
- Type of classes which specifies operations and attributes but corresponding classes are not available are classified as
- Name of operation and type of data of parameters must be included in
Learn SQL Online Free with MCQs Practice Tests
- Keyword proposed by SQL for elimination of duplicates in a result is said to be
- Null value can be excluded using NOT NULL constraint, from
- Output generated by boolean expression 'unknown or unknown' is
- Cascading revocation can be prevented through specification of
- A program can interact with a database server through means of
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