Answer»
SQL joins are important in database management for the following reasons:
- A method of stitching a database back together to make it easier to read and use.
- Additionally, they maintain a normalized database. Data normalization helps us keep data redundancy low so that when we delete or update a record, we will have fewer data anomalies in our application.
- Joins have the advantage of being faster, and as a result, are more efficient.
- It is almost always faster to retrieve the data using a join query rather than one that uses a subquery.
- By utilizing joins, it is possible to reduce the workload on the database. For example, instead of multiple queries, you can use one join query. So, you can better utilize the database's ability to search, filter, sort, etc.
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