SQL Lion

Types of indexes: We have basically two types of indexes in SQL Server.

• Clustered index:  It’s a type of index where the data itself is arranged at the indexed column i.e. we have the actual data at the leaf nodes. For example, in a science definition pocket book, every word is arranged alphabetically and the definition of the word is given along with it. Here there is no need to look up for the referencing page, as in case of other example like in a general book with indexes at the end of the book, contains page number along with the term or word which is then followed to get the information about the term.

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