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Databases Interview Questions
Questions Answers Views Company eMail

How do you change constraints in postgresql?

1 974

How do I connect to a postgresql database in windows?

1 979

What is pragma autonomous_transaction?

1 951

What is difference between statement and preparedstatement?

1 1082

What is procedural api?

1 1061

What is a longblob?

1 1025

What is a heap table?

1 1047

What is myisamchk?

1 1036

What is pdo connection?

1 951

What is a procedure example?

1 1007

What is a simple query?

1 964

What is pragma exception?

1 1023

What is a tinyint?

1 1010

What is query design?

1 966

What is difference between schema and table?

1 982


Un-Answered Questions { Databases }

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


Can one drop a column from a table?

1081


Hi am new to PLSQL & facing problems in writing code like in SP, Functions, so any one having some SP coding with in depth explanation please share with me my Email ID suvarnaatsuvarna@rediffmail.com Or taking tanning on this please do contact me

2088


what is bcp? When does it used? : Sql dba

1051


Why and when do stored procedure recompile?

1052


Have you used lexical parameters in reports?

32


How to define array in mongoose schema?

44


Do we need to rebuild index after truncate?

1126


Can you index views?

951


Can we shrink data file in sql server?

1118


Can we do dml on views?

1027


Design database draw er diagram for a certain scenario ?

4643


Does view occupy space?

1005


How do I start sql server 2017?

1006


Is there any performance difference between if exists (select null from table) and if exists (select 1 from table)?

1021