can anyone help me ?

an index has been done on the primary key of a table. an
update operation was performed on that table.
now my question is

1> what abt the performance ? means faster or slower due to
indexing ?
2> does the operation affect to the primary key constraint ?

Answer Posted / patilshashi

1) Slower due to frequent updating , if their is bulk
updation then disable the constraint and then enable it.
2) No

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Where do we use decode and case statements?

544


Give syntax for SQL and ORACLE joins.

618


How to display employee records who gets more salary than the average salary in the department?

583


There are n numbers of flatfile of exactly same format are placed in a folder.Can we load these flatfile's data one by one to a single relational table by a single session??

1595


Explain mutating triggers.

561






What is program global area (pga) in oracle?

597


What is a user role in oracle?

605


How to define a sub function?

656


query optmization techniques and quwry analyser+projects+ppts

1909


Compare and contrast between sql and sql server and explain its various functions?

514


What is the difference between $oracle_base and $oracle_home?

568


How to create an oracle database manually?

559


WHEN CURSOR MOVES FROM ONE FORM TO ANOTHER FORM, HOW MANY TRIGGER WILL BE FIRED AND WHAT ARE THEIR SEQUENCE?

1791


what are steps for interface? where is exchange rate defined in which table?

1477


how to code performance tuning of oracle PL/SQL? can any body send me the perfect answer?

4654