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Advanced SQL

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
There should be one condition within the WHERE clause for each pair of tables being joined.

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 ;

Cartesian join
Equi-join
Natural join
Outer join

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Advanced SQL
Which of the following statements is true concerning routines and triggers?

Both run automatically.
Both have to be called to operate.
Both are stored in the database.
Both consist of procedural code.

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Advanced SQL
With the UNION clause, each query involved must output the same number of columns, and they must be UNION compatible.

True
False

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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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