要使用SQL的LEFT JOIN進行左連接,可以按照以下步驟進行操作:
SELECT A.column1, B.column2
FROM table1 A
LEFT JOIN table2 B ON A.id = B.id
ON A.id = B.id
WHERE A.column3 = 'value'
綜合起來,完整的LEFT JOIN查詢語句如下所示:
SELECT A.column1, B.column2
FROM table1 A
LEFT JOIN table2 B ON A.id = B.id
WHERE A.column3 = 'value'