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SQL MCQs with Answers – PDF Download

MCQ 1: The NOT IN connective in a SQL set does the verification for the:

Set differences
Absence of set differences
Absence of set membership

MCQ 2: The some and every aggregate function, is applicable over a collection of:

Null values
0s
1s
Boolean values

MCQ 3: SQL built-in aggregate operations, outputs a null value when applied on an:

Avg collection
Sum collection
String collection
Empty collection

MCQ 4: SQL introduced the usage of boolean data type with the extension of:

SQL:1998
SQL:1998
SQL:1999
SQL:2000

MCQ 5: Performing verification for set membership is a common use of subqueries, and the other one is:

Eliminating duplicate values
Set cardinality
Verifying connectives
Select distinct values

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