1自动增加
BEGIN
UPDATE company SET ar_count = ar_count+1 WHERE id = (SELECT company_id FROM architecter WHERE id = new.id);
END
2自动删除
BEGIN
UPDATE company SET ar_count = ar_count-1 WHERE id = old.company_id;
END
在Navicat里的具体操作如下:
1自动增加
BEGIN
UPDATE company SET ar_count = ar_count+1 WHERE id = (SELECT company_id FROM architecter WHERE id = new.id);
END
2自动删除
BEGIN
UPDATE company SET ar_count = ar_count-1 WHERE id = old.company_id;
END
在Navicat里的具体操作如下: