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How to use STANDBY_ARCHIVE_DEST parameter and explain its need?

Submitted by: Administrator

STANDBY_ARCHIVE_DEST is relevant only for a standby database in managed recovery mode. It specifies the location of archive logs arriving from a primary database.
Submitted by: Administrator

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Top Oracle Certification Questions

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Which three statements are true regarding subqueries? (Choose three.)
A. Subqueries can contain GROUP BY and ORDER BY clauses
B. Main query and subquery can get data from different tables
C. Main query and subquery must get data from the same tables
D. Subqueries can contain ORDER BY but not the GROUP BY clause
E. Only one column or expression can be compared between the main query and subqeury
F. Multiple columns or expressions can be compared between the main query and subquery

☺	Explain Which three statements/commands would cause a transaction to end? (Choose three.) A. COMMIT B. SELECT C. CREATE D. ROLLBACK E. SAVEPOINT

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Explain Which two statements are true regarding single row functions? (Choose two.)
A. They accept only a single argument
B. They can be nested only to two levels
C. Arguments can only be column values or constant
D. They always return a single result row for every row of a queried table
E. They can return a data type value different from the one that is reference

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Explain Which two statements are true regarding constraints? (Choose two.)
A. A foreign key cannot contain NULL values
B. A columns with the UNIQUE constraint can contain NULL values
C. A constraint is enforced only for the INSERT operation on a table
D. A constraint can be disabled even if the constraint column contains data
E. All constraints can be defined at the column level as well as the table level

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Explain Which two statements are true about sequences created in a single instance database? (Choose
two.)
A. The numbers generated by a sequence can be used only for one table
B. DELETE <sequencename> would remove a sequence from the database
C. CURRVAL is used to refer to the last sequence number that has been generated
D. When the MAXVALUE limit for a sequence for reached, you can increase the MAXVALUE limit
by using the ALTER SEQUENCE statement
E. When a database instance shuts down abnormally, the sequence numbers that have been
cached but not used would be available once again when the database instance is restarted

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