SQL Self Join | SQL Session-56| Hindi
A self-join is a type of join operation in a relational database where a table is joined with itself. In other words, it involves combining rows from the same table based on a related column or condition.
Self-joins can be useful in situations where you need to compare or relate data within a single table. By creating a self-join, you can treat the table as if it were two separate instances, allowing you to compare data across different rows within the same table.
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