What is data compression? : sql server database administration

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What are the types of table?

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Explain the different index configurations a table can have?

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How would you Update the rows which are divisible by 10, given a set of numbers in column?

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What is a group function explain with an example?

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How sql server executes a statement with nested subqueries?

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What is a hint?

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Please get the 4 th maximum salary from a table without using any sql keyword (TOP,MAX are mot allowed)

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1. What are the grouping function in SQL ? 2. If base table of a view deleted means, what will happen while we querying on view ? will give any error ? 3. Difference between DROP, DELETE, TRUNCATE table ? 4. What is constraints and types ? 5. What is max size of nchar & nvarchar ? 6. Define ROLLBACK, COMMIT, SAVE POINT 7. How non-clustered better ? or rank the Clustered, Non-Clustered and Table scan in performance wise 8. Select 10 rows from a table ? 9. Define DML, DDL, DCL, DTL commands ? 10. What is mean by NULL value ? NULL means "" or 0 or undefined ? 11. Default constraints ? 12. Can we have more then primary Key in table ? 13. Type of integrity ? Entity, Referential, Domain ?

10 Answers   Perot Systems,

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What is clustered vs nonclustered index?

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Difference between drill down and drill through report.

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Do you know what are the properties of the relational tables?

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