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

Does sql support programming?

1 1139

What are the different types of database management systems?

1 1069

What is self-join and what is the requirement of self-join?

1 1217

Which are the most commonly used sql joins?

1 1782

What is the difference between delete and truncate statement in sql?

1 1159

What is denormalization in a database?

1 1131

What is right join in sql?

1 1191

What is data control language?

1 1053

What is the usage of the distinct keyword?

1 1302

What are the disadvantages of not performing database normalization?

1 1245

What are the usages of sql?

1 1122

Which are the different character-manipulation functions in sql?

1 1149

What is a constraint? Tell me about its various levels.

1 1286

When sql appeared?

1 1187

What is normalization in a database?

1 1220

Un-Answered Questions { Databases }

i have all the Oracle Certification material from 1z0-001 to 1Z0-643, if required just drop me a mail to: summi4you@yahoo.co.in

1856

How to export data from database and import into another?

994

How to convert numeric expression data types using the cast() function?

1145

Can we shrink data file in sql server?

1123

Have you created fact table and dimension tables?

709

Do we need to rebuild index after truncate?

1132

How to Change a users password from unix shell.

1214

You have a stored procedure, which execute a lengthy batch job. This stored procedure is called from a trigger you do not want to slow the data entry process you do not want trigger to wait for this batch job to finish before it completes itself what you can do to speed up the process?

1208

How many concurrent programs you have customized, can you name some of them?

how to start mysql server? : Sql dba

1263

This question asked during interview, 2) At the end of each month, a new table is created for each bank that contains monthly metrics consolidated at the account level. The table naming convention is bankX_YYYYMM where X represents the numeric designation of the bank and YYYYMM indicates the 4 digit year and 2 digit month. The tables contain the following fields: name data type description account text account number registered boolean indicates whether the account is registered num_trans integer number of transactions made during the time period spend numeric(9,2) total spend during the time period a) Write a SQL query that will display the total number of transactions and total spend for "Bank1" during the 4th quarter of 2009. b) Write a SQL query that will display the total number of transactions and total spend at "Bank1" and "Bank2", broken out by registered vs. non-registered accounts, during January 2010 not sure what is correct answer and how to solve?

2560

what are the advantages of sql ? : Sql dba

1139

Why we use the openxml clause?

1072

How can you append an identity column to a temporary table?

1067

How can I check that whether automatic statistic update is enabled or not?

1109

For More Un-Answered { Databases } Questions Click Here