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The Equi-Join joins rows from two or more tables based on comparisons between a specific column in each table. The syntax for this approach is as follows: SELECT column_names FROM table1, table2 WHERE (table1. column = table2.
In query Design view, double-click the join you want to change. The Join Properties dialog box appears. In the Join Properties dialog box, note the choices listed beside option 2 and option 3. Click the option that you want to use, and then click OK.
MySQL Joining TablesA JOIN clause is used to combine rows from two or more tables, based on a related column between them. Notice that the "CustomerID" column in the "Orders" table refers to the "CustomerID" in the "Customers" table. The relationship between the two tables above is the "CustomerID" column.
SELECT * FROM table1 LEFT JOIN table2 on table1.id = table2.id
SELECT ...
FROM services AS s
JOIN clients AS c
ON s.client = c.id
WHERE ...
SELECT ...
FROM services AS s
INNER JOIN clients AS c
ON s.client=c.id
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