employees表作为下列列(名称、department_id、角色),而部门表作为下列列(名称、department_id)employees.name AS employees_name,Department.name AS department_name
INNER JOIN
`employee_data.Department`
有人能为我解释一下步骤吗,尤其是子查询(SELECT @i := @i + 1 AS i, employee_id FROM employees)?提前感谢!问题:SET @i = 0;
FROM (SELECT @i := @i + 1 AS i, employee_id FROM employees)
public IEnumerable<employees> GetByEmployeIdAndJobId(int EmpId, int JobId) if (EmplId > 0 && JobId> 0){ where e.employeeId == EmplId&& e.JobId == JobId
sel