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SQL JOIN . HOW to use SQL JOIN clause - SQL INNER JOIN, SQL OUTER JOIN, SQL LEFT JOIN, SQL RIGHT JOIN, SQL self join.The SQL JOIN clause is used whenever we have to select data from 2 or more tables. To be able to use SQL JOIN clause to extract data from 2 (or more) tables A SQL join clause combines records from two or more tables in a database. It creates a set that can be saved as a table or used as is. A JOIN is a means for SQL INNER JOIN Keyword. The INNER JOIN keyword return rows when there is at The JOIN keyword is used in an SQL statement to query data from two or more tables, based on a relationship between certain columns in these tables.
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