An inner join in MySQL is a type of join that returns only the rows from both tables where the join condition is true. The syntax for an inner join in MySQL is as follows:
SELECT column_name(s)
FROM table1 INNER
JOIN table2 ON
table1.column_name = table2.column_name;
In this
syntax, table1 and table2 are
the names of the tables you want to join, and column_name is the name of the
column(s) you want to select. You must specify the columns you want to select
from one or both tables, using table name and column name separated by a dot.
The INNER JOIN clause
specifies the join condition. In this example, the join condition is table1.column_name =
table2.column_name, which means that the join will be performed where the values
in the specified columns match in both tables.
For example, if you have two tables customers and orders with a common column customer_id, you can use the following query to join the tables:
SELECT * FROM customers INNER JOIN orders ON customers.customer_id = orders.customer_id;
This
will return only the rows where the customer_id column matches in both
tables. You can replace * with the specific columns you want to select from either table.
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