What is the difference between a unique key and primary key?

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What is difference between equi join and natural join?

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what are the joins,primary key,foriegn key, candidate key, super key and expain them?

6 Answers   Polaris,

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What keyword you will use to get schema appended to the result set of a ‘for xml’ query?

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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?

0 Answers   TCS,

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What is the size of transaction log file?

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Which command is used for user defined error messages?

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What are window functions in sql server?

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What is the difference between a Local temporary table and a Global temporary table? How is each one used?

2 Answers   HCL,

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How to insert stored procedure result into temporary table?

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Define outer join in sql server joins?

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What is fill factor and pad index?

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