how can we replace the particular column value of a resulted
set of executed query? I mean write down a sql query to
chane the particular column's value of a resulted set of
executed query

Answers were Sorted based on User's Feedback



how can we replace the particular column value of a resulted set of executed query? I mean write do..

Answer / m.raghu

by using sub query answer is

update table1 set col1=(select col2 from table2 where
<cond>)

Is This Answer Correct ?    2 Yes 1 No

how can we replace the particular column value of a resulted set of executed query? I mean write do..

Answer / mglbayar

UPDATE (SELECT t1.col1 c1, t2.col1 c2
FROM table1 t1, table2 t2
WHERE t1.pk = t2.fk AND more_condition)
SET c1 = c2;

Is This Answer Correct ?    2 Yes 1 No

how can we replace the particular column value of a resulted set of executed query? I mean write do..

Answer / suma

select decode(salary,2500,1000,3000,2500, 3000) from
employees;
This query will replace the salary column value from
employees.
If the salary is 2500 then 1000 is displayed in the
resultset, else if 3000 then 2500 will be displayed esle
2000 is displayed.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More SQL PLSQL Interview Questions

What is dba in sql? : SQL DBA

0 Answers  


what is bulk bind

4 Answers   TCS,


what is the order of pre-defined exceptions.

6 Answers   TCS,


What are the query optimization techniques?

0 Answers  


Name the different types of indexes in sql and define them.

0 Answers  






wt is the diff b/w greast and max ,least and min? wt is the diff b/w case and decod?

4 Answers   Oracle, TCS, Tecnics,


What is the difference between left and left outer join?

0 Answers  


what is global table

7 Answers   iFlex,


What is the difference between unique and primary key constraints?

0 Answers  


What are the different schemas objects that can be created using pl/sql?

0 Answers  


What is the difference between having and a where in sql?

0 Answers  


How to fix oracle error ora-00942: table or view does not exist

0 Answers  


Categories