how the Oracle Prepares the Execution Plan and how it
chooses the Optimal one?
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What is the difference between alert log file and tarce file ?
1. How actually index will work ? 2. Why do people prefer mostly bitmap index and btree index in datawarehouse ? 3. If I use the column in aggrigate functions like max,min,count and avg and if I have a index created on that column, will it increases the performance ?
Which is faster join or subquery in oracle?
What are the advantages of Views ?
How to recover a dropped index?
What is backup in Oracle?
Explain constraining triggers.
How to use existing values in update statements using oracle?
Calculate difference between 2 date / times in oracle sql?
How to return top 5 rows in oracle?
How to get a create statement for an existing table?
ur a sql devoloper...what is the process in ur company for finding the database BUGS .. seperate DB testers are there? or devr.s are manage? if DB TESTERS in there what is the process