SQL PLSQL Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

SQL PLSQL Interview Questions

Questions Answers Views Company eMail

1. what is the exact use of hint in sql. 2. How we can avoid index scan in sql even though index is there in the table.

Polaris,

1 6880

SQL Tuning, Oracle Server 10g: Why is the following hint invalid? SELECT /*+ first_rows parallel(table_name,paral_number)*/

Accenture,

1 10112

How to create a view on a table which does not exists

Oracle, TCS,

4 21037

I have a package in which a table was used in a procedure and compiled later i have dropped the table used in the package what would be the status of package specification and body

TCS,

1 6457

why we go for package? what are the advantages of using instead of seperate procuderes or functions

IBM, TCS,

3 10293

there is A table and B table in A table there 5 rows and in b table there are 2 rows i am firing query select * from a,b what will be the output?

Cognizant,

7 14133

What is nvl function?

Cap Gemini,

4 13053

what is 'force view'?

Cap Gemini, SPIC,

3 18371

Can we interchange parameters in procedure while calling

TCS,

1 7530

What is different between union and minus?

Accenture, TCS,

7 23713

how to create a database in oracle?please gve anser with example

1 4585

how to delete duplicate rows from a join tables(I have three tables on that join) how do you know which join is need to be used? The select statement I have is: SELECT gc_skill_type.skill_type, gc_area_tec.area, gc_technology.technology, gc_technology.id_technology, gc_area_tec.id_area_tec FROM gc_skill_type, gc_area_tec, gc_technology WHERE gc_area_tec.id_skill_type (+) = gc_skill_type.id_skill_type AND gc_technology.id_area_tec (+) = gc_area_tec.id_area_tec order by gc_skill_type.skill_type asc, gc_area_tec.area asc, gc_technology.technology asc

IAS,

1 4011

how to findout the 100th maximum salary

Amdocs,

28 29981

How to call the function and Procedure in trigger?

IBM,

3 11565

Like shown below i have 3 columns(Name,No,Address). The values in name column i want to modity. Requirement : Keep only once space between two words (Fname,Lname) in the Name column. For this what is the query? Please answer me. Advance Thanks. Name No Address Reference manoj kumar kumar raja vinzay kumar rajendra prasad gowri nath -- -- --

5 7943

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Un-Answered Questions { SQL PLSQL }

what is a table in a database ? : Sql dba

1036

how does a local variable is defined using t-sql? : Transact sql

1001

How does pl sql work?

957

What is pessimistic concurrency control? : Transact sql

1082

What is %type in sql?

962

What is a system versioned table?

978

How do I start pl sql?

942

What are the types of keys?

989

What is form and report?

972

What are the different types of triggers?

1128

Is sqlexception checked or unchecked?

964

Can we commit in trigger?

966

What are the steps for performance tuning.

1326

what are the properties and different types of sub-queries? : Sql dba

1030

What is query optimization in sql?

981

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