Imagine you are searching for one particular student's record in a database containing millions of students. Without any special mechanism, the database may need to examine a large number of rows to find the required record. This raises an important question: How can a database find the require...
Source: [Dev.to](https://dev.to/siddhu_kumar_fd7a80402b7e/database-indexing-explained-how-indexes-make-sql-queries-faster-3bph)