SQLite Join
JOIN 连接多表:CROSS/INNER/OUTER;SQLite 支持 LEFT JOIN,不支持 RIGHT/FULL(可用调换与 UNION 模拟)。
Key PointsSQLite,JOIN,LEFT JOIN,连接
讲解
JOIN 连接多表:CROSS/INNER/OUTER;SQLite 支持 LEFT JOIN,不支持 RIGHT/FULL(可用调换与 UNION 模拟)。
示例
SQL
SELECT c.name, o.amount
FROM company c
LEFT JOIN orders o ON o.pid = c.id;讲解
JOIN 连接多表:CROSS/INNER/OUTER;SQLite 支持 LEFT JOIN,不支持 RIGHT/FULL(可用调换与 UNION 模拟)。
示例
SQL
SELECT c.name, o.amount
FROM company c
LEFT JOIN orders o ON o.pid = c.id;