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- CREATE TABLE DEPARTMENT
- (DEPARTMENT_ID NUMBER PRIMARY KEY,
- DEPARTMENT_NAME VARCHAR(30) NOT NULL
- );
- CREATE TABLE JOBS
- (JOB_ID NUMBER PRIMARY KEY,
- JOB_TITLE VARCHAR(35) NOT NULL,
- MIN_SALARY DECIMAL NOT NULL,
- MAX_SALARY DECIMAL NOT NULL
- );
- CREATE TABLE EMPLOYEES
- (EMPLOYEE_ID NUMBER PRIMARY KEY,
- FIRST_NAME VARCHAR(20) NOT NULL,
- LAST_NAME VARCHAR(25) NOT NULL,
- EMAIL VARCHAR(25) NOT NULL,
- PHONE_NUMBER VARCHAR(20) NOT NULL,
- HIRE_DATE DATE NOT NULL,
- JOB_ID NUMBER NOT NULL,
- SALARY DECIMAL NOT NULL,
- DEPARTMENT_ID NUMBER NOT NULL,
- CONSTRAINT emp_job_fk FOREIGN KEY(JOB_ID) REFERENCES JOBS(JOB_ID),
- CONSTRAINT emp_department_fk FOREIGN KEY(DEPARTMENT_ID) REFERENCES DEPARTMENT(DEPARTMENT_ID)
- );
- INSERT INTO DEPARTMENT (DEPARTMENT_ID,DEPARTMENT_NAME)
- VALUES(1,'IT');
- INSERT INTO DEPARTMENT (DEPARTMENT_ID,DEPARTMENT_NAME)
- VALUES(2,'Sales');
- INSERT INTO JOBS (JOB_ID,JOB_TITLE,MIN_SALARY,MAX_SALARY)
- VALUES (1,'IT Administrator',250000.00,50000.00);
- INSERT INTO JOBS (JOB_ID,JOB_TITLE,MIN_SALARY,MAX_SALARY)
- VALUES (2,'Salesman',200000.00,40000.00);
- INSERT INTO EMPLOYEES (EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,DEPARTMENT_ID)
- VALUES (1,'Tony','Starc','starc@gmail.com','0123456789',TO_DATE('15/1/2008','DD/MM/YYYY'),1,45000.00,1);
- INSERT INTO EMPLOYEES (EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,DEPARTMENT_ID)
- VALUES (2,'Bruce','Wayne','bruce@gmail.com','0123456788',TO_DATE('15/1/2009','DD/MM/YYYY'),1,40000.00,1);
- INSERT INTO EMPLOYEES (EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,DEPARTMENT_ID)
- VALUES (3,'Larry','Ellison','larry@gmail.com','0123456787',TO_DATE('15/1/2010','DD/MM/YYYY'),1,30000.00,1);
- INSERT INTO EMPLOYEES (EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,DEPARTMENT_ID)
- VALUES (4,'Steve','Jobs','steve@gmail.com','0123456786',TO_DATE('15/1/2011','DD/MM/YYYY'),2,35000.00,2);
- INSERT INTO EMPLOYEES (EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,DEPARTMENT_ID)
- VALUES (5,'Remy','Lebeau','remy@gmail.com','0123456785',TO_DATE('15/1/2012','DD/MM/YYYY'),2,30000.00,2);
- INSERT INTO EMPLOYEES (EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,DEPARTMENT_ID)
- VALUES (6,'Clark','Kent','clark@gmail.com','0123456784',TO_DATE('15/1/2013','DD/MM/YYYY')
- CREATE OR REPLACE FUNCTION fn_emps_per_dept_jc450912 (f_dept_id IN NUMBER,f_emp_id OUT NUMBER,f_first_name OUT VARCHAR,f_last_name OUT VARCHAR,f_job_title OUT VARCHAR)
- RETURN BOOLEAN
- AS
- BEGIN
- SELECT EMPLOYEE_ID,FIRST_NAME,LAST_NAME,JOB_TITLE
- INTO f_emp_id,f_first_name,f_last_name,f_job_title
- FROM EMPLOYEES,JOBS,DEPARTMENT
- WHERE DEPARTMENT.DEPARTMENT_ID = EMPLOYEES.DEPARTMENT_ID
- AND JOBS.JOB_ID = EMPLOYEES.JOB_ID
- AND EMPLOYEES.DEPARTMENT_ID = f_dept_id;
- RETURN TRUE;
- EXCEPTION
- WHEN NO_DATA_FOUND
- THEN
- RETURN FALSE;
- END fn_emps_per_dept_jc450912;
- Function FN_EMPS_PER_DEPT_JC450912 compiled
- DECLARE
- f_dept_id NUMBER;
- f_emp_id NUMBER;
- f_first_name VARCHAR(30) ;
- f_last_name VARCHAR(30) ;
- f_job_title VARCHAR(30);
- f_return BOOLEAN;
- BEGIN
- f_dept_id := 1;
- f_return := fn_emps_per_dept_jc450912(f_dept_id,f_emp_id,f_first_name,f_last_name,f_job_title);
- DBMS_OUTPUT.PUT_LINE('Employee_ID: ' || f_emp_id);
- DBMS_OUTPUT.PUT_LINE('First Name: ' || f_first_name);
- DBMS_OUTPUT.PUT_LINE('Last Name: ' || f_last_name);
- DBMS_OUTPUT.PUT_LINE('Job: ' || f_job_title);
- END;
- Error report -
- ORA-01422: exact fetch returns more than requested number of rows
- ORA-06512: at "SYSTEM.FN_EMPS_PER_DEPT_JC450912", line 5
- ORA-06512: at line 10
- 01422. 00000 - "exact fetch returns more than requested number of rows"
- *Cause: The number specified in exact fetch is less than the rows returned.
- *Action: Rewrite the query or change number of rows requested
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