Project 2

Q1) Create new schema as alumni
CREATE DATABASE alumni;
USE alumni

# Q3) Run SQL command to see the structure of six tables
DESC college_a_hs;
DESC college_a_se;
DESC college_a_sj;
DESC college_b_hs;
DESC college_b_se;
DESC college_b_sj;

Q5.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.
-- -- It Is Peroform On MS Excel

Q6.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_V 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_V;

# Q7) 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_V AS (SELECT * FROM college_a_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 Batch IS NOT NULL AND Degree IS NOT NULL AND PresentStatus IS NOT NULL AND Organization IS NOT NULL AND Location IS NOT NULL);

# Q8) 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_V 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_V;

# Q9) 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_V 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_V;

Q10) 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_V 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_V;

# Q11) 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_V 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_V;

# Q12) 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_V; SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_A_Se_V; SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_A_Sj_V; SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_B_HS_V; SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_B_Se_V; SELECT LOWER(Name),LOWER(FatherName),LOWER(MotherName) FROM College_B_Sj_V;

Q13) 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.

# Q14) Write a query to create procedure get_name_collegeA using the cursor to fetch names of all students from college A.

DELIMITER $$

CREATE PROCEDURE get_name_collegeA ( 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_collegeA(@Name); SELECT @Name Name;

# 16) Write a query to create procedure get_name_collegeB using the cursor to fetch names of all students from college B.

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