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Advanced SQL

Advanced SQL
When AUTOCOMMIT is set on, changes will be made automatically at the end of each SQL statement.

False
True

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Advanced SQL
Outer join is the same as equi-join, except one of the duplicate columns is eliminated in the result table.

True
False

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Advanced SQL
The following SQL is which type of join: SELECT CUSTOMER_T. CUSTOMER_ID, ORDER_T. CUSTOMER_ID, NAME, ORDER_ID FROM CUSTOMER_T,ORDER_T ;

Outer join
Equi-join
Natural join
Cartesian join

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Advanced SQL
The most frequently used relational operation, which brings together data from two or more related tables into one resultant table, is called an equi-join.

False
True

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Advanced SQL
What type of join is needed when you wish to return rows that do have matching values?

Natural join
Outer join
Equi-join
All of these

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Advanced SQL
The joining technique is useful when data from several relations are to be retrieved and displayed and the relationships are not necessarily nested.

False
True

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