After using set unused can we enable the column again to
use?

Please give me some answers....



After using set unused can we enable the column again to use? Please give me some answers......

Answer / shail

Sorry.
You cannot reverse this action.
So, be careful to execute this statement

Is This Answer Correct ?    2 Yes 0 No

Post New Answer

More Oracle General Interview Questions

How to work with data objects interactively?

0 Answers  


Can we convert a date to char in oracle and if so, what would be the syntax?

0 Answers  


What are the various types of snapshots ?

0 Answers  


What is COST-based approach to optimization ?

5 Answers  


What is the Tune Query

0 Answers  






What is the purpose of init.ora. ? how many init.ora exist in oracle installation? suppose there are 3 database on one oracle server, how many init.ora do I have? what are various database objects? how will you identify memmory related performace issue in oralce? any idea about basic architure difference of oracle and db2? comment on which is better , with reasons? what is a fuction based index? is it recommended to use the same. ? what is global temporay table? what is teh signification of the parameter session_cached_cursor ?

1 Answers   HDFC,


What is backup in Oracle?

0 Answers   MCN Solutions,


Why is oracle used?

0 Answers  


What is meant by joins?

0 Answers  


How to define an anonymous procedure without variables?

0 Answers  


How to load a large xml file?

0 Answers  


What the is the diff between local index and global index. give some example.

0 Answers   TCS,


Categories
  • Oracle General Interview Questions Oracle General (1789)
  • Oracle DBA (Database Administration) Interview Questions Oracle DBA (Database Administration) (261)
  • Oracle Call Interface (OCI) Interview Questions Oracle Call Interface (OCI) (10)
  • Oracle Architecture Interview Questions Oracle Architecture (90)
  • Oracle Security Interview Questions Oracle Security (38)
  • Oracle Forms Reports Interview Questions Oracle Forms Reports (510)
  • Oracle Data Integrator (ODI) Interview Questions Oracle Data Integrator (ODI) (120)
  • Oracle ETL Interview Questions Oracle ETL (15)
  • Oracle RAC Interview Questions Oracle RAC (93)
  • Oracle D2K Interview Questions Oracle D2K (72)
  • Oracle AllOther Interview Questions Oracle AllOther (241)