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2208/存储过程练习题.md

@@ -438,19 +438,92 @@ CALL get_employee_salary_rank(2);
 
 创建一个存储过程 `get_department_total_salary`，接受部门ID作为参数，返回该部门所有员工的工资总和。
 
+```sql
+DELIMITER $$
+DROP PROCEDURE IF EXISTS get_department_total_salary;
+CREATE PROCEDURE get_department_total_salary(IN id INT)
+BEGIN
+	SELECT SUM(e.salary)
+	FROM employee e
+	WHERE e.dept_id = id;
+END $$
+DELIMITER ;
+CALL get_department_total_salary(1);
+```
+
+
+
 #### 练习题 17: 查询职位工资总和
 
 创建一个存储过程 `get_job_total_salary`，接受职位ID作为参数，返回该职位所有员工的工资总和。
 
+```sql
+DELIMITER $$
+DROP PROCEDURE IF EXISTS get_job_total_salary;
+CREATE PROCEDURE get_job_total_salary(IN id INT)
+BEGIN
+	SELECT SUM(e.salary)
+	FROM employee e
+	WHERE e.job_id = id;
+END $$
+DELIMITER ;
+CALL get_job_total_salary(1);
+```
+
+
+
 #### 练习题 18: 查询员工入职年份分布
 
 创建一个存储过程 `get_employees_by_hire_year`，接受年份作为参数，返回该年份入职的所有员工。
 
+```sql
+DELIMITER $$
+DROP PROCEDURE IF EXISTS get_employees_by_hire_year;
+CREATE PROCEDURE get_employees_by_hire_year(IN y INT)
+BEGIN
+	SELECT *
+	FROM employee e
+	WHERE YEAR(e.hire_date) = y;
+END $$
+DELIMITER ;
+CALL get_employees_by_hire_year(2020);
+```
+
+
+
 #### 练习题 19: 查询部门工资分布
 
 创建一个存储过程 `get_department_salary_distribution`，接受部门ID作为参数，返回该部门工资的分布情况（如最高、最低、平均工资）。
 
+```sql
+DELIMITER $$
+DROP PROCEDURE IF EXISTS get_department_salary_distribution;
+CREATE PROCEDURE get_department_salary_distribution(IN id INT)
+BEGIN
+	SELECT MAX(e.salary), MIN(e.salary), AVG(e.salary)
+	FROM employee e
+	WHERE e.dept_id = id;
+END $$
+DELIMITER ;
+CALL get_department_salary_distribution(1);
+```
+
+
+
 #### 练习题 20: 查询职位工资分布
 
 创建一个存储过程 `get_job_salary_distribution`，接受职位ID作为参数，返回该职位工资的分布情况（如最高、最低、平均工资）。
 
+```sql
+DELIMITER $$
+DROP PROCEDURE IF EXISTS get_job_salary_distribution;
+CREATE PROCEDURE get_job_salary_distribution(IN id INT)
+BEGIN
+	SELECT MAX(e.salary), MIN(e.salary), AVG(e.salary)
+	FROM employee e
+	WHERE e.job_id = id;
+END $$
+DELIMITER ;
+CALL get_job_salary_distribution(1);
+```
+