The joining technique is useful when data from several relations are t – McqOptions

MCQOPTIONS

1.	The joining technique is useful when data from several relations are to be retrieved and displayed and the relationships are not necessarily nested.
A.	1
B.
Answer» B.

Discussion

No Comment Found

Related MCQs

A function returns one value and has only output parameters.
With the UNION clause, each query involved must output the same number of columns, and they must be UNION compatible.
The UNION clause is used to combine the output from multiple queries together into a single result table.
When AUTOCOMMIT is set on, changes will be made automatically at the end of each SQL statement.
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.
A correlated subquery is where the outer query depends on data from the inner query.
ROLLBACK WORK asks SQL to empty the log file.
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 WHERE CUSTOMER_T. CUSTOMER_ID = ORDER_T. CUSTOMER_ID
The code to create triggers and routines is stored in only one location and is administered centrally.
Outer join is the same as equi-join, except one of the duplicate columns is eliminated in the result table.