Importance of using indexes in SQLite Databases

We usually use SQLite or other databases on a PC. If the data volume does not reach a massive volume, we will not find the impact of indexes on the efficiency of Multi-Table connections.

My SQLite database runs on the wince system, and the CPU is only 433 MHz. When a database is created, no index is created for the primary key and foreign key. As the data volume increases, the application efficiency of some three or even two tables is obviously reduced.

After an index is created, the efficiency is significantly improved, almost the same as that of a single table.

Therefore, when you are working on databases, do not be lazy. The indexes you should use are still used.