Benefits of Nested Select Statements
Nested select statements offer several benefits:
- Increased Flexibility: Nested queries provide an advanced filtering and data transformation ability that may be already beyond the capacity of one query.
- Improved Readability: Although such complex queries are usually complex to read and understand, they are often more legible and comprehensible when they are used correctly.
- Optimization: MariaDB query optimizer can do that in most cases. It can especially improve performance and speed of the whole query process if nested queries are used and it can perform nested queries not as a series of separate queries.
What is Nested Select Statement in MariaDB
Nested select statements, normally named subqueries, represent an advanced feature for MariaDB which enables more efficient and thorough querying of the data. Therefore, the nesting of a SELECT statement within another allows us to perform operations and filtering that could be hardly possible with only one query.
In this article, we’ll explore the syntax and multiple examples of nested select statements in MariaDB.