SQL server LEFT JOIN code example

Example 1: ms sql left join select

SELECT * FROM 
(SELECT [column] FROM [table]) a
LEFT JOIN (SELECT [column1], [columnn2] FROM [table]) b
ON a.column = b.column1

Example 2: 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 3: sql left join

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

Example 4: left join sql

SELECT column_name(s)

FROM table1

LEFT JOIN table2
 ON table1.column_name = table2.column_name;

Example 5: left join mysql

SELECT 
    Student_details.*,
    Attendance.*
FROM
    Student_details
LEFT JOIN Attendance ON 
    Student_details.s_id = Attendance.s_id;