how many groups of data types? : Sql dba

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What are crud methods?

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I have the table like this S.No Name ID 01 Xyz 123 I want the result as 01Xyz123 How to write the query to retrieve the entire row data in a single column?

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How many sql statements are used? Define them.

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Is primary key an index?

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What are joins in sql?

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How do I start sql profiler?

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Is it mandatory for the primary key to be given a value when a new record is inserted?

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I am creating an index on Emp table Empno column,if u using this indexed column in ur SELECT stmt. where clause,then how do u know that yr index will be working or nor? Thanks Advance...

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How to execute multiple sql statements in a single annonymous block irrespective of the sql statement result?

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What is the difference between microsoft sql and mysql?

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Can we use views in stored procedure?

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