You can use the system stored procedure sp_rename to rename any index in the database. It will show you all the indexes present in the server, in which you can locate your own tables too. You can check the different indexes present in a particular table given by the user or the server itself and their uniqueness. ON TableName REBUILD Confirming Indexes : To modify an existing table’s index by rebuilding, or reorganizing the index. To drop an index, you must be the owner of the index or have the DROP ANY INDEX privilege. Product specific notes are provided like. Use The Index, Luke presents indexing in a vendor agnostic fashion. To remove an index from the data dictionary by using the DROP INDEX command. SQL Indexing in MySQL, Oracle, SQL Server, etc.

The columns are not often used as a condition in the query.

One or more columns are frequently used together in a where clause or a join condition.

A column does not contain a large number of null values.

A column contains a wide range of values.

ON TABLE column When should indexes be created:

Unique indexes are used for the maintenance of the integrity of the data present in the table as well as for the fast performance, it does not allow multiple values to enter into the table.

ON TABLE (column1, column2.) Unique Indexes:

ISRO CS Syllabus for Scientist/Engineer Exam.

ISRO CS Original Papers and Official Keys There are some different types of indexes in SQL server: Clustered index Non clustered index.

GATE CS Original Papers and Official Keys.

Sql server indexing