sql代码:
SELECT * from propertyfield as pf
RIGHT JOIN property as p
ON (pf.pfid = p.propID)
不返回空值
或者
SELECT * from propertyfield as pf
RIGHT JOIN property as p
ON (pf.pfid = p.propID)
where p.propID is null
不返回空值
sql代码:
SELECT * from propertyfield as pf
RIGHT JOIN property as p
ON (pf.pfid = p.propID)
不返回空值
或者
SELECT * from propertyfield as pf
RIGHT JOIN property as p
ON (pf.pfid = p.propID)
where p.propID is null
不返回空值