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

Oracle (3253)
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

Can you leave a union at any time?

1112

Does union all remove duplicates?

1125

What does it mean to be in union?

985

Why union all is faster than union?

981

Can group by and orderby be used together?

1073

Can group by be used without aggregate functions?

966

Does group by or order by come first?

1005

Does group by sort data?

949

What is difference between group by and having?

996

What is user and end user?

960

What is type of end users?

871

What does you mean by s4 super key?

1056

What is table normalization?

998

What is data sublanguage?

1093

What are the different types of data tables?

953

Un-Answered Questions { Databases }

What does bitemporal mean?

1117

what is 'mysqldump'? : Sql dba

1169

What is the difference between char and varchar in mysql?

1201

What does n tier mean?

787

what systems can odi extract and load data into?

659

how to check myisam tables for errors? : Sql dba

1398

What is the default port of mongodb server?

How to override dml statements with triggers?

1282

Explain index covering?

881

Is mysql query case sensitive?

1015

What does the no logging option do? Why would we be careful of using it?

660

What is the advantage of sql server?

1084

how do u setup a replication site?

2035

What are data regions?

140

Her departmandaki isçilerden empno' su ikinci sirada olan isçilerin empno, deptno, hiredate, sira_no bigilerini döndüren sorguyu yaziniz?

2045

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