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SQL Interview Questions

Clustered : 1)index creates a physical order of rows 2)There can be only one clustered index on the table. 3)The size of the clustered index is large. Non-clustered:  1)index is also a binary tree but it doesn't create a physical order of rows. So the leaf nodes of nonclustered index contain PK (if it exists) or row index.  2)There can be multiple non- clustered indexes on the table  3)The size of the non-clustered index is smaller than the clustered index.   Store Procedure vs Function  Store Procedure-:  1)Store Procedure can return zero or n Values 2)store procedure can have Input and output parameter 3)Procedure allows select as as DML Statement[Insert/Update/Delete] 4)procedure handled by try-catch-block Function -: 1)Function Can return one value which is Mandatory 2)function can have only input parameter 3)function allows only select statement 4)Try-catch-block cannot be used in function
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Location: India
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