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

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Databases Interview Questions

Questions Answers Views Company eMail

Explain trigger and trigger types?

1 1045

Which are the new data types introduced in sql server 2008?

1 961

How we can compare two database data?

1 1023

Explain aggregate functions?

1 1157

What is self contained multi valued query?

1 1094

What is explicit mode in sql server?

1 1135

What is logon trigger?

1 1188

How to Update from select query in sql server?

1 1145

What is system stored procedures?

1 1110

What is sql injection? How to protect against sql injection attack?

1 1054

What is repeatable read?

1 1123

What is a rollup clause?

1 1040

How can I know what locks are running on which resource?

1 1020

When I delete any data from a table, does the sql server reduce the size of that table?

1 1088

What is user-defined functions? What are the types of user-defined functions that can be created?

1 1107

Un-Answered Questions { Databases }

What is a coalesce function?

1275

What is the latest version of postgresql?

949

Who proposed the relational model?

1027

What is subquery? Explain the properties of a subquery?

1055

How do I remove duplicates in two columns?

1177

define sql insert statement ? : Sql dba

1093

How do I find query history in sql server?

1018

Can you index views?

951

Do we need to rebuild index after truncate?

1128

Does group by remove duplicates?

1108

what are aggregate and scalar functions? : Sql dba

1122

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?

2553

How to connect php with different port numbers?

1177

What versions of clipper does netlib support?

1084

how to use regular expression in pattern match conditions? : Sql dba

1105

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