Create dbms_college.sql

Author: Ramanand23

dbms_college.sql

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+-- Create STUDENT table
+CREATE TABLE STUDENT (
+    USN VARCHAR(10) PRIMARY KEY,
+    SNAME VARCHAR(25),
+    ADDRESS VARCHAR(25),
+    PHONE VARCHAR(10),
+    GENDER CHAR(1)
+);
+
+-- Create SEMSEC table
+CREATE TABLE SEMSEC (
+    SSID VARCHAR(5) PRIMARY KEY,
+    SEM NUMBER(2),
+    SEC CHAR(1)
+);
+
+-- Create CLASS table
+CREATE TABLE CLASS (
+    USN VARCHAR(10),
+    SSID VARCHAR(5),
+    PRIMARY KEY (USN, SSID),
+    FOREIGN KEY (USN) REFERENCES STUDENT(USN),
+    FOREIGN KEY (SSID) REFERENCES SEMSEC(SSID)
+);
+
+-- Create SUBJECT table
+CREATE TABLE SUBJECT (
+    SUBCODE VARCHAR(8) PRIMARY KEY,
+    TITLE VARCHAR(20),
+    SEM NUMBER(2),
+    CREDITS NUMBER(2)
+);
+
+-- Create IAMARKS table
+CREATE TABLE IAMARKS (
+    USN VARCHAR(10),
+    SUBCODE VARCHAR(8),
+    SSID VARCHAR(5),
+    TEST1 NUMBER(2),
+    TEST2 NUMBER(2),
+    TEST3 NUMBER(2),
+    FINALIA NUMBER(3),
+    PRIMARY KEY (USN, SUBCODE, SSID),
+    FOREIGN KEY (USN) REFERENCES STUDENT(USN),
+    FOREIGN KEY (SUBCODE) REFERENCES SUBJECT(SUBCODE),
+    FOREIGN KEY (SSID) REFERENCES SEMSEC(SSID)
+);
+
+-- Insert values into STUDENT table
+INSERT INTO STUDENT VALUES ('lcg15cs001', 'Abhi', 'tumkur', '9875698410', 'M');
+INSERT INTO STUDENT VALUES ('lcg15cs002', 'Amulya', 'Gubbi', '8896557412', 'F');
+INSERT INTO STUDENT VALUES ('lcg16me063', 'Chethan', 'Nitur', '7894759522', 'M');
+INSERT INTO STUDENT VALUES ('lcg14ec055', 'Raghavi', 'Sspuram', '9485675521', 'F');
+INSERT INTO STUDENT VALUES ('lcg15ee065', 'Sanjay', 'Bangalore', '9538444404', 'M');
+
+-- Insert values into SEMSEC table
+INSERT INTO SEMSEC VALUES ('5A', 5, 'A');
+INSERT INTO SEMSEC VALUES ('3B', 3, 'B');
+INSERT INTO SEMSEC VALUES ('7A', 7, 'A');
+INSERT INTO SEMSEC VALUES ('2C', 2, 'C');
+INSERT INTO SEMSEC VALUES ('4B', 4, 'B');
+INSERT INTO SEMSEC VALUES ('4C', 4, 'C');
+
+-- Insert values into CLASS table
+INSERT INTO CLASS VALUES ('lcg15cs001', '5A');
+INSERT INTO CLASS VALUES ('lcg15cs002', '5A');
+INSERT INTO CLASS VALUES ('lcg16me063', '3B');
+INSERT INTO CLASS VALUES ('lcg14ec055', '7A');
+INSERT INTO CLASS VALUES ('lcg15ee065', '3B');
+INSERT INTO CLASS VALUES ('lcg15ee065', '4C');
+INSERT INTO CLASS VALUES ('lcg15cs002', '4C');
+
+-- Insert values into SUBJECT table
+INSERT INTO SUBJECT VALUES ('10CS81', 'ACA', 8, 4);
+INSERT INTO SUBJECT VALUES ('15cs53', 'Dbms', 5, 4);
+INSERT INTO SUBJECT VALUES ('15cs33', 'ds', 3, 4);
+INSERT INTO SUBJECT VALUES ('15cs34', 'Co', 3, 4);
+INSERT INTO SUBJECT VALUES ('15cs158', 'Dba', 5, 2);
+INSERT INTO SUBJECT VALUES ('10cs71', 'Oomd', 7, 4);
+
+-- Insert values into IAMARKS table
+INSERT INTO IAMARKS VALUES ('lcg15cs001', '15cs53', '5A', 18, 19, 15, NULL);
+INSERT INTO IAMARKS VALUES ('lcg15cs002', '15cs53', '5A', 15, 16, 14, NULL);
+INSERT INTO IAMARKS VALUES ('lcg16me063', '15cs33', '3B', 10, 15, 16, NULL);
+INSERT INTO IAMARKS VALUES ('lcg14ec055', '10cs71', '7A', 18, 20, 21, NULL);
+INSERT INTO IAMARKS VALUES ('lcg15ee065', '15cs33', '3B', 16, 20, 17, NULL);
+INSERT INTO IAMARKS VALUES ('lcg15ee065', '15cs53', '4C', 19, 20, 18, NULL);
+
+-- 1. List all the student details studying in fourth semester ‘C’ section.
+SELECT s.USN, s.SName, s.Address, s.Phone, s.Gender
+FROM STUDENT s
+JOIN CLASS c ON s.USN = c.USN
+JOIN SEMSEC ss ON c.SSID = ss.SSID
+WHERE ss.Sem = 4 AND ss.Sec = 'C';
+
+-- 2. Compute the total number of male and female students in each semester and in each section.
+SELECT ss.Sem, ss.Sec, s.Gender, COUNT(*) AS Total
+FROM STUDENT s
+JOIN CLASS c ON s.USN = c.USN
+JOIN SEMSEC ss ON c.SSID = ss.SSID
+GROUP BY ss.Sem, ss.Sec, s.Gender
+ORDER BY ss.Sem, ss.Sec, s.Gender;
+
+-- 3. Create a view of Test1 marks of student USN ‘1BI15CS101’ in all subjects.
+CREATE VIEW Test1Marks AS
+SELECT Subcode, Test1
+FROM IAMARKS
+WHERE USN = '1BI15CS101';
+
+-- To see the view
+SELECT * FROM Test1Marks;
+
+-- 4. Calculate the FinalIA (average of best two test marks) and update the corresponding table for all students.
+UPDATE IAMARKS
+SET FinalIA = (
+    SELECT ROUND((GREATEST(Test1, Test2, Test3) + LEAST(GREATEST(Test1, Test2), GREATEST(Test2, Test3), GREATEST(Test1, Test3))) / 2.0)
+)
+WHERE FinalIA IS NULL;
+
+-- 5. Categorize students based on the following criterion for 8th semester A, B, and C section students:
+--    If FinalIA = 17 to 20 then CAT = ‘Outstanding’
+--    If FinalIA = 12 to 16 then CAT = ‘Average’
+--    If FinalIA < 12 then CAT = ‘Weak’
+
+SELECT s.USN, s.SName, s.Address, s.Phone, s.Gender,
+       CASE 
+           WHEN ia.FinalIA BETWEEN 17 AND 20 THEN 'Outstanding'
+           WHEN ia.FinalIA BETWEEN 12 AND 16 THEN 'Average'
+           ELSE 'Weak'
+       END AS CAT
+FROM STUDENT s
+JOIN CLASS c ON s.USN = c.USN
+JOIN SEMSEC ss ON c.SSID = ss.SSID
+JOIN IAMARKS ia ON s.USN = ia.USN
+JOIN SUBJECT sub ON ia.Subcode = sub.Subcode
+WHERE ss.Sem = 8 AND ss.Sec IN ('A', 'B', 'C');