最新话题
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SELECT employee_id,department_name FROM employees e,departments d WHERE e.department_idd.department_...0253 -
select employee_id,department_name from employees,departments where employees.department_id departm...0215
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desc employees; desc departments; SELECT employee_id,department_id,location_id from employees,depart...0250
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查询表结构 DESC employees; DESC departments; 注意写表别名和连接条件 ‘e’和‘d’,where SELECT e.employee_id,d.departmen...0250
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SELECT employee_id,department_name FROM employees,departments WHERE employees.employee_id departmen...0231
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desc employees; desc departments; select e.employee_id,d.department_name from employees,departments;...0247
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SELECT e.last_name,d.department_id FROM employees e,departments d WHERE d.department_ide.department_...0246
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SELECT employee_id,department_name from employees,departments WHERE employees.employee_id departmen...0258
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SELECT employee_id,department_name from employees,departments where employees.department_id departme...0230
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查询员工id和部门名字 select employee_id,last_name from employees,departments where employees.department_id de...0231
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角度3：内连接vs外连接 SELECT e.employee_id,d.department_name FROM employees e,departments d WHERE e.departmen...0259
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内连接vs外连接 回顾 SELECT employee_id,department_name from employees e,departments d where e.department_i...0223
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select employee_id,department_name from employees e,departments d where e.employee_idd.department_id...0289
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SELECT e.employee_id,d.department_nameFROM employees e,departments dWHERE e.department_id d.departm...0232
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select employee_id,department_name from employees e,departments d where e.employee_idd.department_id...0202
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SELECT employee_id,department_name from employees e,departments d where e.department_idd.department_...0249
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SELECT e.employee_id,d.department_name FROM employees e,departments d WHERE e.department_id d.depar...0227
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SELECT e.employee_id,d.department_namefrom employees e,departments dwhere e.department_idd.departmen...0228
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SELECT e.employee_id,d.department_name FROM employees e,departments d WHERE e.department_id d.depar...0215
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SELECT e.employee_id,d.department_nameFROM employees AS e,departments AS dWHERE e.department_id d.d...0369