sqliteHow do I use a LEFT JOIN in SQLite?

A LEFT JOIN in SQLite is used to combine data from two tables, where data from the left table is returned based on a match with data from the right table. The syntax for a LEFT JOIN in SQLite is:

SELECT column1, column2, ...
FROM table1
LEFT JOIN table2
ON table1.column_name = table2.column_name;

For example, if we have two tables customers and orders, we can join them together using the following code:

SELECT customers.name, orders.order_date
FROM customers
LEFT JOIN orders
ON customers.customer_id = orders.customer_id;

The code above will return all customers from the customers table, even if there is no matching order in the orders table.

The parts of the LEFT JOIN statement are:

• SELECT: This is used to specify which columns from the tables should be returned.
• FROM: This is used to specify which table should be used as the left table.
• LEFT JOIN: This is used to specify that a LEFT JOIN should be used.
• ON: This is used to specify the condition that should be used to join the two tables.

Helpful links

• SQLite Documentation
• SQLite LEFT JOIN

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