a2zinterviews

13.	What is Database Change Notification?
	Database Change Notification is a service that is used to notify the registered clients whenever a change is committed.
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14.	List some important Streams views?
	Following are some important Streams views: DBA_STREAMS_TABLE_RULES DBA_APPLY_CONFLICT_COLUMNS GV$STREAMS_CAPTURE
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15.	What is downstream capture?
	Generally, capture process functions at source database. However, if you want to save resources at the source database, you can set up another database for the capture process only. The feature which allows you to move capture process to another database is called downstream capture.
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16.	What is Logical Change Record (LCR)?
	LCR contains database changes, streams require the changes to be captured in specific format. LCR keeps the changes in that format.
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