Topic: Oracle Certified Professional Exams (OCP & OCA) >> plz help Which two statements about subqueries are true? (Choose two.)
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| Title: plz help Which two statements about subqueries are true? (Choose two.) |
| naidu |
Posted: Dec 27, 2006 04:25:08 AM |
Total Post: 85
Joined: Nov, 2006
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Which two statements about subqueries are true? (Choose two.)
A. A subquery should retrieve only one row.
B. A subquery can retrieve zero or more rows.
C. A subquery can be used only in SQL query statements.
D. Subqueries CANNOT be nested by more than two levels.
E. A subquery CANNOT be used in an SQL query statement that uses group functions.
F. When a subquery is used with an inequality comparison operator in the outer SQL statement, the column list in the SELECT clause of the subquery should contain only one column.
Answer:
as soon as possible plz |
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 Jayanta |
| Posted: Dec 27, 2006 04:53:23 AM |  |
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Total Post: 479
Joined: Feb, 2006
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| Prakash |
| Posted: Dec 27, 2006 04:54:48 AM | |
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Total Post: 112
Joined: Aug, 2006
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