What Is Optimization/what Happens During Optimization Phase?

1.	What Is Optimization/what Happens During Optimization Phase?
Answer» During the optimization phase, Oracle uses its optimizer(CBO(cost-based optimizer)) to CHOOSE the BEST ACCESS method for retriving data for the TABLES and indexes referred to in the query. During the optimization phase, Oracle uses its optimizer(CBO(cost-based optimizer)) to choose the best access method for retriving data for the tables and indexes referred to in the query.

Answer»

During the optimization phase, Oracle uses its optimizer(CBO(cost-based optimizer)) to CHOOSE the BEST ACCESS method for retriving data for the TABLES and indexes referred to in the query.

During the optimization phase, Oracle uses its optimizer(CBO(cost-based optimizer)) to choose the best access method for retriving data for the tables and indexes referred to in the query.

Discussion

No Comment Found

Related InterviewSolutions

Can You Import Objects From Oracle Version 7.3 To 9i?
Suppose A Column Has Many Repeated Values. Which Type Of Index You Should Create On This Column?
If A Table Has Few Rows, Should You Create Indexes On This Table?
How Do You Capture An Exception In Oracle?
What Is Recursive Sql?
What Are Different Types Of Cursors?
Can You Pivot The Results Of A Query?
What Is Null?
What Is Execute Immediate?
What Is A Database Link? What Is The Difference Between A Public And A Private Database Link? What Is A Fixed User Database Link?

What Is Optimization/what Happens During Optimization Phase?

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment