Self and Non−Equal Joins Most of the time when you write joins, the queries involve at least two different tables and the join condition is an equal sign where you look for exact matches between the rows in the participating tables. There are some situations, though, where you need to join a table to itself (self−join). There are also situations where the relationship between the rows in the participating tables is not based on exact matches; rather, it's based on another logical condition (non−equal join). This section describes how to deal with these situations. - Study24x7
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trilok sharma
12 Apr 2019 05:27 PM study24x7 study24x7

Self and Non−Equal Joins Most of the time when you write joins, the queries involve at least two different tables and the join condition is an equal sign where you look for exact matches between the rows in the participating tables. There are some situations, though, where you ...

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