what is a constraint? : Sql dba

0 Answers  

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What is difference between nchar and nvarchar?

0 Answers  

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How to export the table data (this table having 18 million records) to .csv file. Please tell me is there any faster way to export the data.

8 Answers  

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what is the difference between union and union all? : Sql dba

0 Answers  

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Can we use more than one null value for unique key?

31 Answers   A1 Technology, Wipro,

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What is a CTE (Common Table Expression), and how is it different from a subquery?

3 Answers  

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What is Overloading of procedures ?

4 Answers   Amdocs,

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i want count no of values in a column i.e enam eempno phoneno x 1 (98765,09887,096561,87964579,156678,678900876) that means if i select phone no from table i want to get total count of phone numbers i.e 6

8 Answers   Satyam,

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TABLE A TABLE B EMPNO ENAME EMPNO ENAME 1 A 1 A 2 B 2 B 3 C 3 C 4 D 4 D 5 E 5 E 6 F 7 G HOW TO GET THE UNMATCHED RECORDS IN SQL QUERY?

10 Answers   Satyam,

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Which join is like an inner join?

0 Answers  

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What is the difference between rollback and rollback to statements?

0 Answers  

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What is window clause?

1 Answers   TCS,

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