Create PL | SQL Statements.md

Author: mvharsh

PL | SQL Statements.md

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+# QUERIES AND OUTPUT:
+
+      CREATE TABLE SALESMEN
+      (
+       SID VARCHAR2 (5) PRIMARY KEY,	 
+       SNAME VARCHAR2 (20),	  
+       CITY VARCHAR2 (15), 	    
+       SALARY NUMBER (8, 2),	       
+       TARGET NUMBER (10, 2),	
+       SALES NUMBER (10, 2),       	    		   
+       COMM NUMBER (5, 2)
+      );
+      
+      INSERT ALL
+      INTO SALESMEN (SID, SNAME, CITY, SALARY, TARGET, SALES, COMM) VALUES ('101','Harsh','Mumbai','200000','250000','300000','0.15')
+      INTO SALESMEN (SID, SNAME, CITY, SALARY, TARGET, SALES, COMM) VALUES ('102','Harish','Chennai','100000','150000','200000','0.13')
+      INTO SALESMEN (SID, SNAME, CITY, SALARY, TARGET, SALES, COMM) VALUES ('103','Jesse','Bangalore','70000','90000','100000','0.14')
+      INTO SALESMEN (SID, SNAME, CITY, SALARY, TARGET, SALES, COMM) VALUES ('104','Ramya','Hyderabad','80000','100000','70000','0.12')
+      INTO SALESMEN (SID, SNAME, CITY, SALARY, TARGET, SALES, COMM) VALUES ('105','Girish','Coimbatore','150000','200000','100000','0.17')
+      SELECT * FROM DUAL;
+      
+      SELECT * FROM SALESMEN
+
+**OUTPUT:**
+
+![image](https://github.com/mvharsh/RDBMS/assets/111365320/db8c131d-f895-432c-bba6-12077300b982)
+
+
+ 
+ 
+## 1. Write a  PL/SQL function to calculate the sum of digits of an integer.
+
+      CREATE OR REPLACE PROCEDURE sum_digits(id IN salesmen.sid%TYPE)
+      IS
+          total_digits NUMBER := 0;
+          s_salary salesmen.salary%TYPE;
+      BEGIN
+          SELECT salary INTO s_salary FROM salesmen WHERE sid = id;
+          FOR i IN 1..LENGTH(s_salary)
+          LOOP
+              total_digits := total_digits + TO_NUMBER(SUBSTR(s_salary, i, 1));
+          END LOOP;
+          DBMS_OUTPUT.PUT_LINE('The sum of digits in the salary of salesman ' || id || ' is: ' || total_digits);
+      END;
+      
+      DECLARE
+       id VARCHAR2(5);
+      BEGIN 
+       id := :id;
+       sum_digits(id);
+      END;
+
+**OUTPUT:**
+![image](https://github.com/mvharsh/RDBMS/assets/111365320/b64551e6-8cd0-49d8-8745-2018caf26919)
+
+ 
+ ## 2. Write s PL/SQL function to find whether an input string is palindrome or not.
+ 
+        CREATE OR REPLACE PROCEDURE palindrome(id IN salesmen.sid%TYPE)
+        IS
+            total_digits NUMBER := 0;
+            name1 salesmen.sname%TYPE;
+            name2 salesmen.sname%TYPE;
+            name3 salesmen.sname%TYPE;
+        BEGIN
+            SELECT sname INTO name1 FROM salesmen WHERE sid = id;
+            FOR i IN REVERSE 1..LENGTH(name1) LOOP 
+                name2 := substr(name1, i, 1); 
+                name3 := name3 || name2; 
+            END LOOP; 
+            IF (name1 = name3) THEN 
+              dbms_output.put_line(name1 ||' is palindrome'); 
+            ELSE 
+              dbms_output.put_line(name1 ||' is not palindrome'); 
+            END IF; 
+        END;
+        
+        DECLARE
+         id VARCHAR2(5);
+        BEGIN 
+         id := :id;
+         palindrome(id);
+        END;
+
+**OUTPUT:**
+
+![image](https://github.com/mvharsh/RDBMS/assets/111365320/7d049b00-11f1-48e8-856a-839f487ea227)
+
+
+
+## 3. Write s PL/SQL procedure to increase the salesman salary by 10% of the monthly sales.
+
+      DECLARE  
+         total_rows number(2); 
+      BEGIN 
+         UPDATE salesmen 
+         SET salary = salary + 0.1*sales; 
+         IF sql%notfound THEN 
+            dbms_output.put_line('No Salesman Selected'); 
+         ELSIF sql%found THEN 
+            total_rows := sql%rowcount;
+            dbms_output.put_line( total_rows || ' salary selected '); 
+         END IF;  
+      END;
+      
+![image](https://github.com/mvharsh/RDBMS/assets/111365320/ab518a4d-788b-4ca8-a68f-c5143fb150ba)
+
+      
+      SELECT * FROM SALESMEN
+
+![image](https://github.com/mvharsh/RDBMS/assets/111365320/93353993-a763-407b-83f3-cb04fdf11e3a)
+
+ 
+
+## 4. Write a PL/SQL block to display the total salary (.Salary + Commission) of each employee if total salary exceeds 25,000.
+
+      DECLARE
+        total_salary NUMBER(8,2);
+      BEGIN
+        FOR emp IN (SELECT * FROM SALESMEN)
+        LOOP
+          total_salary := emp.SALARY + (emp.SALES * emp.COMM);
+          IF total_salary > 25000 THEN
+            DBMS_OUTPUT.PUT_LINE('Employee ' || emp.SID || ': Total Salary = ' || total_salary);
+          END IF;
+        END LOOP;
+      END;
+
+**OUTPUT:**
+![image](https://github.com/mvharsh/RDBMS/assets/111365320/8482ddee-e479-4502-a2f8-756c36393012)
+
+ 
+
+## 5. Write a PL/SQL block which has a procedure get_salesman_details which accepts a salesman number and returns the salesman name and salary. The main block must get any salesman id as input and pass the id to the procedure and display the returned result.
+      DECLARE
+       s_name VARCHAR2(20);
+       s_salary NUMBER(8, 2);
+       s_id VARCHAR2(5) ;
+      BEGIN
+       s_id:= :s_id;
+       SELECT SNAME, SALARY INTO s_name,s_salary
+       FROM salesmen
+       WHERE SID= s_id;
+       DBMS_OUTPUT.PUT_LINE('Name: '||s_name);
+       DBMS_OUTPUT.PUT_LINE('Salary: '||s_salary);
+      END;
+
+**OUTPUT:**
+![image](https://github.com/mvharsh/RDBMS/assets/111365320/c1239537-9d04-4efe-a13b-26e5dcb7d63a)
+
+ 
+
+# EXTRA QUERIES:
+
+
+## 1) Get year as input from user. Print customer name and agent name of those who placed orders in that particular year. Also print sum of order amount for each.
+
+      DECLARE
+         input_year NUMBER;
+         total_order_amount NUMBER;
+      BEGIN
+         input_year := :year;
+         DBMS_OUTPUT.PUT_LINE('CUST_NAME     AGENT_NAME     TOTAL_ORDER_AMOUNT');
+      
+         FOR c IN (SELECT DISTINCT customer.cust_name, agents.agent_name FROM orders
+                   JOIN customer ON orders.cust_code = customer.cust_code
+                   JOIN agents ON orders.agent_code = agents.agent_code
+                   WHERE EXTRACT(YEAR FROM ord_date) = input_year)
+         LOOP
+            DBMS_OUTPUT.PUT(RPAD(c.cust_name, 13) || '  ' || LPAD(c.agent_name, 13));
+      
+            SELECT SUM(ord_amount) INTO total_order_amount FROM orders
+            WHERE cust_code = (SELECT cust_code FROM customer WHERE cust_name = c.cust_name)
+            AND agent_code = (SELECT agent_code FROM agents WHERE agent_name = c.agent_name)
+            AND EXTRACT(YEAR FROM ord_date) = input_year;
+      
+            DBMS_OUTPUT.PUT_LINE('  ' || total_order_amount);
+         END LOOP;
+      END;
+
+ ![image](https://github.com/mvharsh/RDBMS/assets/111365320/4cfaaa86-6d3e-4710-b541-21117726a083)
+