Create an Index
Explore how to create indexes in MySQL to improve query performance by efficiently accessing data. Understand the syntax, naming conventions, and use cases for single and multi-column indexes. Learn to verify indexes and consider their impact on data modification commands.
We'll cover the following...
We'll cover the following...
Let’s see an example of creating an index. We want to create an index on the identity column of the customers table. Below is the command:
create index customers_identity_idx on customers (identity);
Before we actually execute that, let’s analyze its format.
Parts of the index query
- The command to create an index should start with
create index. - Then, we give the name of the index. Each index needs to have a name, which can be anything. It’s generally helpful to follow the
<table_name>_<column>_idxpattern when naming