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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 6155

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

Accenture,

1 9013

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

Oracle, TCS,

4 19572

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 5610

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

IBM, TCS,

3 8987

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 11961

What is nvl function?

Cap Gemini,

4 11339

what is 'force view'?

Cap Gemini, SPIC,

3 16636

Can we interchange parameters in procedure while calling

TCS,

1 6649

What is different between union and minus?

Accenture, TCS,

7 21080

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

 1 3880

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 3230

how to findout the 100th maximum salary

Amdocs,

28 23327

How to call the function and Procedure in trigger?

IBM,

3 10287

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 6405

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Un-Answered Questions { SQL PLSQL }

What are the types of optimization?

517

Explain spool.

681

Explain select statements in sql?

582

What is difference between my sql and sql?

526

what are the differences between binary and varbinary? : Sql dba

529




What is oracle pl sql developer?

528

what is try_catch block in procedure

1187

Explain the difference between sql and mysql.

563

What is function and procedure?

561

Which is better stored procedure or query?

541

What is a dirty read sql?

474

What are sql injection vulnerabilities?

495

explain advantages of myisam over innodb? : Sql dba

595

who introduced sql?

566

What is a unique constraint?

606

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