Project 2

import mysql.connector as sc

testdb=sc.connect(host="localhost",user="root",password="123456",database="alumini")

A_HS = "SELECT * FROM college_a_hs LIMIT 1000"

A_SE = "SELECT * FROM college_a_se LIMIT 1000"

A_SJ = "SELECT * FROM college_a_sj LIMIT 1000"

B_HS = "SELECT * FROM college_b_hs LIMIT 1000"

B_SE = "SELECT * FROM college_b_se LIMIT 1000"

B_SJ = "SELECT * FROM college_b_sj LIMIT 1000"

value=testdb.cursor()

value.execute(A_HS)

for x in value:

print(x)

value.execute(A_SE)

for x in value:

print(x)

value.execute(A_SJ)

for x in value:

print(x)

value.execute(B_HS)

for x in value:

print(x)

value.execute(B_SE)

for x in value:

print(x)

value.execute(B_SJ)

for x in value:

print(x)

5.Import first 1500 rows of tables (College_A_HS, College_A_SE, College_A_SJ, College_B_HS, College_B_SE, College_B_SJ) into MS Excel.

6.Perform data cleaning on table College_A_HS and store cleaned data in view College_A_HS_V, Remove null values.

CREATE VIEW college_A_HS_VIEW AS (SELECT * FROM college_a_hs WHERE RollNo IS NOT NULL AND LastUpdate IS NOT NULL AND Name IS NOT NULL AND FatherName IS NOT NULL AND MotherName IS NOT NULL
AND Batch IS NOT NULL AND
Degree IS NOT NULL AND PresentStatus IS NOT NULL AND HSDegree IS NOT NULL AND EntranceExam IS NOT NULL AND Institute IS NOT NULL AND Location IS NOT NULL);
SELECT * FROM college_A_HS_VIEW;

-- 7.Perform data cleaning on table College_A_SE and store cleaned data in view College_A_SE_V, Remove null values.
CREATE VIEW college_A_SE_VIEW AS (SELECT * FROM college_a_hs WHERE RollNo IS NOT NULL AND LastUpdate IS NOT NULL AND Name IS NOT NULL AND FatherName IS NOT NULL AND MotherName IS NOT NULL
AND Batch IS NOT NULL AND
Degree IS NOT NULL AND PresentStatus IS NOT NULL AND HSDegree IS NOT NULL AND EntranceExam IS NOT NULL AND Institute IS NOT NULL AND Location IS NOT NULL);
SELECT * FROM college_A_SE_VIEW;

-- 8.Perform data cleaning on table College_A_SJ and store cleaned data in view College_A_SJ_V, Remove null values.
CREATE VIEW College_A_SJ_VIEW AS (SELECT * FROM college_a_sj WHERE RollNo IS NOT NULL AND LastUpdate IS NOT NULL AND Name IS NOT NULL AND FatherName IS NOT NULL AND MotherName IS NOT NULL
AND Batch IS NOT NULL AND
Degree IS NOT NULL AND PresentStatus IS NOT NULL AND Organization IS NOT NULL AND Designation IS NOT NULL AND Location IS NOT NULL);
SELECT * FROM College_A_SJ_VIEW;

-- 9.Perform data cleaning on table College_B_HS and store cleaned data in view College_B_HS_V, Remove null values.\
CREATE VIEW College_B_HS_VIEW AS (SELECT * FROM college_b_hs WHERE RollNo IS NOT NULL AND LastUpdate IS NOT NULL AND Name IS NOT NULL AND FatherName IS NOT NULL AND MotherName IS NOT NULL
AND Branch IS NOT NULL AND Batch IS NOT NULL AND
Degree IS NOT NULL AND PresentStatus IS NOT NULL AND HSDegree IS NOT NULL AND EntranceExam IS NOT NULL AND Institute IS NOT NULL AND Location IS NOT NULL);
SELECT * FROM College_B_HS_VIEW;

-- 10.Perform data cleaning on table College_B_SE and store cleaned data in view College_B_SE_V, Remove null values.
CREATE VIEW College_B_SE_VIEW AS (SELECT * FROM college_b_se WHERE RollNo IS NOT NULL AND LastUpdate IS NOT NULL AND Name IS NOT NULL AND FatherName IS NOT NULL AND MotherName IS NOT NULL
AND Branch IS NOT NULL AND Batch IS NOT NULL AND
Degree IS NOT NULL AND PresentStatus IS NOT NULL AND Organization IS NOT NULL AND Location IS NOT NULL);
SELECT * FROM College_B_SE_VIEW;

-- 11.Perform data cleaning on table College_B_SJ and store cleaned data in view College_B_SJ_V, Remove null values.
CREATE VIEW College_B_SJ_VIEW AS (SELECT * FROM college_b_sj WHERE RollNo IS NOT NULL AND LastUpdate IS NOT NULL AND Name IS NOT NULL AND FatherName IS NOT NULL AND MotherName IS NOT NULL
AND Branch IS NOT NULL AND Batch IS NOT NULL AND
Degree IS NOT NULL AND PresentStatus IS NOT NULL AND Organization IS NOT NULL AND Designation IS NOT NULL AND Location IS NOT NULL);
SELECT * FROM College_B_SJ_VIEW;

12.Make procedure to use string function/s for converting record of Name, FatherName, MotherName into lower case for views (College_A_HS_V, College_A_SE_V, College_A_SJ_V, College_B_HS_V, College_B_SE_V, College_B_SJ_V)

SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_A_HS_VIEW;
SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_A_Se_VIEW;
SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_A_Sj_VIEW;
SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_B_HS_VIEW;
SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_B_Se_VIEW;
SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_B_Sj_VIEW;

13.Import the created views (College_A_HS_V, College_A_SE_V, College_A_SJ_V, College_B_HS_V, College_B_SE_V, College_B_SJ_V) into MS Excel and make pivot chart for location of Alumni.

14.Write a query to create procedure get_name_collegeA using the cursor to fetch names of all students from college A.

DROP PROCEDURE get_name_college
DELIMITER $$
CREATE PROCEDURE get_name_college
(
INOUT name1 TEXT(40000)
)
BEGIN
DECLARE na INT DEFAULT 0;
DECLARE namelist VARCHAR(16000) DEFAULT "";

DECLARE namedetail
CURSOR FOR
SELECT Name FROM college_a_hs UNION SELECT Name FROM college_a_se UNION SELECT Name FROM college_a_sj;

DECLARE CONTINUE HANDLER
FOR NOT FOUND SET na =1;

OPEN namedetail;

getame :
LOOP
FETCH FROM namedetail INTO namelist;
IF na = 1 THEN
LEAVE getame;
END IF;
SET name1 = CONCAT(namelist,";",name1);

END LOOP getame;
CLOSE namedetail;
END $$
DELIMITER ;

SET @Name = "";
CALL get_name_college(@Name);
SELECT @Name Name;

-- 15. Write a query to create procedure get_name_collegeB using the cursor to fetch names of all students from college B.

DROP PROCEDURE get_name_collegeB
DELIMITER $$
CREATE PROCEDURE get_name_collegeB
(
INOUT name1 TEXT(40000)
)
BEGIN
DECLARE na INT DEFAULT 0;
DECLARE namelist VARCHAR(16000) DEFAULT "";

DECLARE namedetail
CURSOR FOR
SELECT Name FROM college_b_hs UNION SELECT Name FROM college_b_se UNION SELECT Name FROM college_b_sj;

DECLARE CONTINUE HANDLER
FOR NOT FOUND SET na =1;

OPEN namedetail;

getame :
LOOP
FETCH FROM namedetail INTO namelist;
IF na = 1 THEN
LEAVE getame;
END IF;
SET name1 = CONCAT(namelist,";",name1);

END LOOP getame;
CLOSE namedetail;
END $$
DELIMITER ;

SET @Name = "";
CALL get_name_collegeB(@Name);
SELECT @Name Name;

-- 16.Calculate the percentage of career choice of College A and College B Alumni (w.r.t Higher Studies, Self Employed and Service/Job)

SELECT "Higher Studies" Present_status,(COUNT(college_a_hs.RollNo) /(college_a_hs.RollNo))*100 College_A_Persentage,(COUNT(college_b_hs.RollNo)/(college_b_hs.RollNo))*100 College_B_Persentage FROM college_a_hs CROSS JOIN college_b_hs UNION
SELECT "Self Empolyment" Present_status,(COUNT(college_a_se.RollNo) /(college_a_se.RollNo))*100 College_A_Persentage,(COUNT(college_b_se.RollNo)/(college_b_se.RollNo))*100 College_B_Persentage FROM college_a_se CROSS JOIN college_b_se UNION
SELECT "Service Job" Present_status,(COUNT(college_a_sj.RollNo) /(college_a_sj.RollNo))*100 College_A_Persentage,(COUNT(college_b_sj.RollNo)/(college_b_sj.RollNo))*100 College_B_Persentage FROM college_a_sj CROSS JOIN college_b_sj;