Author Archives: user

SQL – Clustered Index Table of content An index in a database is a data structure that helps to improve the speed of retrieving specific data from tables and views. Data in a table is stored in the form of an unordered data structure called a “Heap”, where rows are placed without any specific order. […]

SQL – Show Indexes Table of content The SQL Show Index Statement The SHOW INDEX is the basic SQL statement to retrieve the information about the indexes that have been defined on a table. However, the SHOW INDEX statement only works on MySQL RDBMS and is not a valid statement in the SQL Server. To […]

SQL – Drop Index Table of content The DROP statement in SQL is used to remove or delete an existing database object such as a table, index, view, or procedure. Whenever we use DROP statement with any of the database objects, it will remove them permanently along with their associated data. And when that database […]