این رو امتحان کنید.
SELECT m.CodeMosh , m.Nam ,
(SELECT COUNT( k.Code )
FROM kharid k
WHERE m.CodeMosh = k.CodeMosh) as TedadKharid
FROM moshtari m
GROUP BY TedadKharid
این رو امتحان کنید.
SELECT m.CodeMosh , m.Nam ,
(SELECT COUNT( k.Code )
FROM kharid k
WHERE m.CodeMosh = k.CodeMosh) as TedadKharid
FROM moshtari m
GROUP BY TedadKharid