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

Oracle (3259)
SQL Server (4518)
MS Access (429)
MySQL (1402)

Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)

DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)

Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)

Database Management (1411)
Databases AllOther (288)

Databases Interview Questions

Questions Answers Views Company eMail

Create a procedure to delete certain records from a table and display the total number of records deleted in this process. (Condition for deletion can be of ur choice, for instance delete all records where eid='')

2 7808

I have Two table First have UserName and second is address, in address table more than value relegated to UserName table, i want to fetch 2nd address if exist other wise 1st address access

4 6054

I'm need to prepare Month Over Month Sales Growth report. Is there any function available in OBIEE to perform this task.

Infosys,

2171

how to get required data from oracle source is like this ram_05_seetha lax_05_viswa bamr05frummy run_01_away sw_sas_trim i want my target data like ram_05_seetha lax_05_viswa to get data using %_05_% but it will give ram_05_seetha lax_05_viswa bamr05frummy how can i get my target data?

Infosys,

1 4295

how to produce numbers from 1 to 10 using dual table

Genpact,

4 10904

I have a table Events Events containing cardno,time,id,name- -each id has a cardno my requirement is every day each employee swipe the card several times i want to calculate first and last time of each card the output should be name 1 2 6 7 in out in out holiday holiday xxx 09:30 06:30 09:40 06:45 where 1,2...... are dates for example january 1,2, etc. 6 and 7 are saturday and sunday how it is posssible

2089

two tables are there emp(eno,ename,sal,deptno),dept(deptno,dname).how form the query in deptno,ename,max(sal)

2 4963

how may join possible between (requisition with purchase order)

2247

I have created one package with out procedures in package specification and in package body i have used 2 procedures. is it compile????

1 4703

default triggers available for reports

2211

How to craeate the New Database Schema in Oracle and mysql? Please tell me with Example?

2470

i want run a sql query query? which phases are run in a back ground? pls tell me the answer

1 5267

what is Equity join?

ADP,

2 7198

HOW TO TUNE ORACLE SQL QUERIES GIVE ME STEP BY SREP

TCS,

1 8775

How can multiply values of a column? OR How can multiply value of a row of a column using a single query in SQL?

Pitney Bowes,

1 6115

Un-Answered Questions { Databases }

what is datawarehouse? : Sql dba

1015

What is field in mysql?

931

Differentiate CHAR_LENGTH and LENGTH?

996

What is the best database for big data?

995

How does mongodb replica set work?

What is the difference between createstatement and preparedstatement?

940

Why do we use triggers?

967

Explain the term ‘relations’?

886

What is sql partition function?

1208

what ASIS BUSINESS PROCESS IN ORACLE FINANCE

2279

What are the methods used to protect against sql injection attack?

1065

Explain the various types of concurrency problem. I.e. Lost or buried updates, uncommitted dependency, inconsistent analysis, phantom read?

950

How do you Implement SSIS Packages in your Project?

1931

How data are stored in database?

956

How is a process of pl/sql compiled?

1160

For More Un-Answered { Databases } Questions Click Here