What are collections in oracle plsql, and Transpose concepts.

Hi OTN,
what are the collections available in Oracle Plsql, what are concepts of collection.
How to Transpose a Table from rows to columns or columns into rows.
DDL and DML concepts.
What is the concepts of statistics in Oracle Plsql.
Thanks
Edited by: 945059 on Aug 22, 2012 4:52 AM

945059 wrote:
Hi OTN,
what are the collections available in Oracle Plsql, what are concepts of collection.
How to Transpose a Table from rows to columns or columns into rows.
DDL and DML concepts.
What is the concepts of statistics in Oracle Plsql.
Thanks
Edited by: 945059 on Aug 22, 2012 4:52 AMhttp://www.google.co.in/search?hl=en-IN&source=hp&q=collections+oracle&gbv=2&oq=collections+oracle&gs_l=heirloom-hp.3..0l4j0i30l6.2031.5874.0.6561.18.17.0.0.0.0.422.3217.2-4j4j2.10.0...0.0...1c.l6qRfaAtkWM&safe=active
SQL and PL/SQL FAQ
http://www.google.co.in/search?q=performance+tuning+oracle&hl=en-IN&gbv=2&gs_l=heirloom-hp.3..0l4j0i30l6.2031.5874.0.6561.18.17.0.0.0.0.422.3217.2-4j4j2.10.0...0.0...1c.l6qRfaAtkWM&safe=active&oq=performance+tuning+oracle

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I want to understand the role of: 'Journalizing CDC' and 'IKM - Incremental Update' and
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Should i use both of them? Or maybe it is better to deelte and insert to the target tables?Delete and insert into target is fine , but ask yourself how do you identify which rows to process, inserts and updates are generally OK , to spot a delete you need to compare the table in full, target table minus source table = deleted rows , do you want to copy the whole source table every time to perform this ? Are they in the same database ?
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Source target ----< LKM >---- Collection table (C$) ----<IKM>---- Integration table (I$) -----< IKM >---- Target table
With CDC your process looks like :
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>
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