SQL PLSQL Interview Questions
Questions Answers Views Company eMail

How can we Get the Updated Rows? ie, There is 100s of Rows i updated the Rows who have salary 5000. then i want to select the Updated Rows. How can we achieve it?

Fidelity, KCP,

4 14249

IN A TABLE HAVE ONE COLUMN PRIMARY KEY..IT WILL NOT ALLOWS NULL VALUES AND DUPLICATE VALUES..INSTEAD OF PRIMARY KEY WHY CANT WE USE UNIQUE AND NOT NULL.THESE TWO ALSO DOESNT ACCEPT NULL VALUES IN NOT NULL AND UNIQUE DOESNT ACCEPT DUPLICATE VALUES? SO WHAT IS THE DIFEERENCE BETWEEN(UNIQUE,NOT NULL) AND PRIMARY KEY??????

rsystems,

8 8217

how will be date change into string

4 4856

i have a table with fields(id,name,accnt_type)and in account type are FD,SAVING,RD. Write a query to get How many number of People are in each type of Account?

Fidelity, IBM,

6 11770

I need to write a simple query,which one is better select statement or stored procedure?and why?

iGate,

2 5980

how can we write a column values horizontal by using sql stmt; ex: select name from table_name;(actual output) a b c d require output is a b c d

Honeywell, Interact,

5 11512

how will you find out the last three records in a table with n no of records and delete them

3 4992

i have a word ***********hello********world******. I require a o/p **********hello world**********, Need to delete the middle stars.

3 5488

If we have n no of columns in a table, can we add new column in that table with not null constraint?

2 4808

in sql table following column r there i want find 1st paid ,2nd paid,3rd paid date for same |service_type|date |vehicle_no| |------------|------|_---------| |paid |23 jan|MH12H2007 | | | | | |paid |26 feb|MH12H2007 | | | | | | | | | |paid |28 mar|MH12H2007 | i want o/p like below vehicle no| 1st paid date | 2nd paid date|3rd paid |latest paid date| pls help me out

4 4329

pl/sql testing means what ...... explain process how to find pl/sql bugs

Zensar,

1 4799

in oracle 10g sw after compiling procedure how to pass parameter values ,if we (v_empid out number)how to give empid after successful compilation program.This site exact suitable for 10g with respect to question & answer same format , im trying sql browser & sql command prompt using exec procedure name & respective parameters.

1620

in sql table follw columns r their vehicle_no|servicetype|date|location| 1234 |1FS |1-JAN|PUNE| 4561 |2FS |5-JAN|PUNE| 1234 |PS |7-JAN|PUNE| 1234 |PS |15-JAN|MUMB| i want o/p below vehicleno|1fs|1fsdate|1fslocation|1ps|1PSDATE|1PSLOC|2PS|2PS DATE|2PSLOCA e.g 1234|1FS|1JAN|PUNE|1PS|7JAN|PUNE|2PS|15JAN|MUMBAI PLS help me out to execute using sql query

1 2373

We have a CURSOR then we need BULK COLLECT?

1 2942

what is the main difference between join and subqurey?

Oracle,

3 6402


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Un-Answered Questions { SQL PLSQL }

What is the difference between row level and statement level trigger?

493


What are the types of operators available in sql?

525


What is a crud api?

476


What are the advantages of normalization?

533


What are all the different normalization?

536






What is record in pl sql?

571


What is the difference between unique and primary key constraints?

562


Write a sql select query that only returns each name only once from a table?

536


what is oltp (online transaction processing)? : Sql dba

516


what is a trigger? : Sql dba

550


Is merge a dml statement?

500


What is materialized view in sql?

445


Does oracle use sql?

487


Compare sql & pl/sql

590


What is the need of a partition key?

512