Disadvantages of Inner Join
- Data Loss: Since inner joins only return rows that have matching values in both tables, some data may be lost if there are no matching values.
- Query Complexity: Inner joins can become complex and difficult to write and understand when working with multiple tables.
- Overlapping Data: In some cases, inner joins may return overlapping data that needs to be deduplicated in post-processing.
For more, refer to Inner Join in SQL.
Inner Join vs Outer Join
Inner Join and Outer Join are the types of join. The inner join has the work to return the common rows between the two tables, whereas the Outer Join has the work of returning the work of the inner join in addition to the rows which are not matched.
Let’s discuss both of them in detail in this article. Before moving ahead, let’s discuss what is Join in SQL.
In a relational database management system (RDBMS), there are different types of joins that can be used to combine data from two or more tables in a database. The two most common types of joins are Inner Join and Outer Join.