Category Archives: sql

SQL – Indexes Table of content The SQL Indexes SQL Indexes are special lookup tables that are used to speed up the process of data retrieval. They hold pointers that refer to the data stored in a database, which makes it easier to locate the required data records in a database table. SQL Indexes work […]

SQL – Create Index Table of content An index is an effective way to quickly retrieve data from an SQL database. It is a database object that references the data stored in a table, which significantly improves query and application performance of a database. The process of indexing in SQL is similar to that of […]

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 […]