pgsql lft join code example
Example 1: mysql left join
/*Two tables: CUSTOMERS table and ORDERS table.
ORDERS table contains STATUS attribute.*/
SELECT
customers.customerNumber,
customerName,
orderNumber,
status
FROM
customers
LEFT JOIN orders ON
orders.customerNumber = customers.customerNumber;
Example 2: sql left join
SELECT table1.column1, table2.column2...
FROM table1
LEFT JOIN table2
ON table1.common_field = table2.common_field;