Скачать или смотреть Left Outer Join, Right Outer Join, Full Outer Join in SQL | Outer Join in SQL | Self Join in SQL

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"Left Outer Join, Right Outer Join, Full Outer Join in SQL | Outer Join in SQL | Self Join in SQL | Sql Joins Servers 2023

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Equi Join In Sql - Inner Join in SQL - How It Works

00:29 - sql joins intro
03:27 - left outer join syntax
11:03 - full outer join syntax
16:50 - self join syntax"n this video, I have discussed Outer Join and Self Join in SQL
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The LEFT JOIN keyword returns all records from the left table (table1), and the matching records from the right table (table2). The result is 0 records from the right side, if there is no match.

SELECT column_name(s) FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name;

The RIGHT JOIN keyword returns all records from the right table (table2), and the matching records from the left table (table1). The result is 0 records from the left side, if there is no match.

SELECT column_name(s) FROM table1 RIGHT JOIN table2 ON table1.column_name = table2.column_name;

The FULL OUTER JOIN keyword returns all records when there is a match in left (table1) or right (table2) table records.

SELECT column_name(s) FROM table1 FULL OUTER JOIN table2 ON table1.column_name = table2.column_name WHERE condition;

A self join is a regular join, but the table is joined with itself.

SELECT column_name(s) FROM table1 T1, table1 T2 WHERE condition;

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