Write C# code to update data in the database table. The fields are Student_Id, Student_Name, Major, and PhoneNumber.
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- Access Assignment Problem: JMS TechWizards is a local company that provides technical services to several small businesses in the area. The company currently keeps its technicians and clients’ records on papers. The manager requests you to create a database to store the technician and clients’ information. The following table contains the clients’ information. Client Number Client Name Street City State Postal Code Telephone Number Billed Paid Technician Number AM53 Ashton-Mills 216 Rivard Anderson TX 78077 512-555-4070 $315.50 $255.00 22 AR76 The Artshop 722 Fisher Liberty Corner TX 78080 254-555-0200 $535.00 $565.00 23 BE29 Bert's Supply 5752 Maumee Liberty Corner TX 78080 254-555-2024 $229.50 $0.00 23 DE76 D & E Grocery 464 Linnell Anderson TX 78077 512-555-6050 $485.70…The database has three tables for tracking horse-riding lessons: Horse with columns: ID - primary key RegisteredName Breed Height BirthDate Student with columns: ID - primary key FirstName LastName Street City State Zip Phone EmailAddress LessonSchedule with columns: HorseID - partial primary key, foreign key references Horse(ID) StudentID - foreign key references Student(ID) LessonDateTime - partial primary key Write a SELECT statement to create a lesson schedule with the lesson date/time, horse ID, and the student's first and last names. Order the results in ascending order by lesson date/time, then by horse ID. Unassigned lesson times (student ID is NULL) should not appear in the schedule.Below is part of a student database for your reference. The primary keys are highlighted in bold. Student (studNo, studlvame, address, mobileNo) Registration (studNo, courseNo, regDate, semester, session) Course (courseNo, courseName, creditHour, level) Project (projNo, projName, courseNo) Assignment (projNo, studNo, startDate, dueDate, hoursSpent) Fill the empty lines (Line 10, 12, 22, 23, 27) with the appropriate PL/SQL code so as to complete the following anonymous block. The anonymous block displays the list of courses taken by a certain student. Allow the user to enter the STUDENT NAME: 1. ACCEPT studname PROMPT 'Enter the student name:' 2. 3. DECLARE 4. v_cid course.courseno%TYPE; 5. V_sname student.studname%TYPE:= '&studname; 6. V_cname course.coursename%TYPE; 7. 8. CURSOR course_list IS 9. SELECT c.courseno, c.coursename 10. 11. WHERE s.studno = r.studno 12. 13. AND studname = V_sname; 14. 15. BEGIN 16. 17. OPEN course_list; 18. 19. DBMS_OUTPUT.PUT_LINE(List of courses for…
- 1-Write the syntax to insert into a relational table called students the address column references an object table called addresses that was created using an address_type. Other columns exist in the students table, but you are only inserting into the ones below. Aliases used should be the first letter of the table name, eg students would be s, addresses would be a Relational Table Name students attribute student_id attribute surname attribute addressWhat is a NULL value?What happens if you try to decrease the scale or precision of a NUMBER column to a value less than the data already stored in the field?
- Delete the index named ITEM_INDEX3.Below is part of a Student database. The primary keys are highlighted in bold. Student (studNo, studName, address, mobileNo) Registration (studNo, courseNo, regDate, semester, session) Course (courseNo, courseName, creditHour, level) Project (projNo, projName, courseNo) Assignment (projectNo, studNo, startDate, dueDate, hoursSpent) QUESTION 1. Write a PL/SQL FUNCTION that calculates the cost each student has to pay for all courses taken. In the photo is example the cost detail for each course. 2. Write a PL/SQL Procedure to call the function you created in question 1 . Allow the user to enter the student ID (studno). SECOND PHOTO IS THE EXAMPLE OF EXPECTED OUTPUTPATHS is a table that contains information about paths on a number line. The structure of PATHS is as follows, where x1 and x2 represent that there is a path from Coordinate x1 to Coordinate x2 (You can't move from Coordinate x2 to Coordinate x1 ). NAME ΤΥΡE NULLABLE X1 INT FALSE X2 INT FALSE Problem Please write an SQL statement that returns the beginning and end point of each path in PATHS . Sort them by the value of the beginning point in ascending order. Constraints • In the case where a direct path from Coordinate a to Coordinate b is available, no path from Coordinate b to Coordinate a will be given. |x1-x2| = 1 • No path will overlap with one another. Example Suppose that PATHS is as follows: x1 x2 1 2 2 3 4 7 7 6 This table can be visualized as follows: START END END START 7 8. 9 Therefore, your SQL statement must return the following: start end 1 4 8 6
- Task 2: The Car Maintenance team also wants to store the actual maintenance operations in the database. The team wants to start with a table to store CAR_ID (CHAR(5)), MAINTENANCE_TYPE_ID (CHAR(5)) and MAINTENANCE_DUE (DATE) date for the operation. Create a new table named MAINTENANCES. The PRIMARY_KEY should be the combination of the three fields. The CAR_ID and MAINTENACNE_TYPE_ID should be foreign keys to their original tables. Cascade update and cascade delete the foreign keys. Answer in MYSQL pleasecalculate_new_balance Given a starting balance (a number), and a list of transaction tuples, calculate the final balance for an account. Transaction tuples are of the shape ("description", amount, "withdrawal") , or ("description", amount, "deposit"). The last entry in the tuple will be either "withdrawal" or "deposit". Every withdrawal decreases the balance of the account by the specified amount, and every deposit increases the balance. The return value is the new account balance, as a number. (which could be negative) Sample calls should look like: >>> calculate_new_balance(100, [("payday", 20, "deposit"), ("new shoes", 50, "withdrawal"), ("illicit winnings", 200, "deposit")])270>>> calculate_new_balance(100, [])100The database contains a Horse table, with columns: ID integer, primary key Registered Name variable-length string. The database contains a Student table, with columns: • ID integer, primary key First Name - variable-length string LastName variable-length string Write a SQL Query to create a Schedule table, with columns: HorseID - integer with range 0 to 65535, not NULL • Student ID integer with range 0 to 65535 Lesson DateTime - date/time, not NULL (HorseID, Lesson DateTime) is the primary key Also, create the following foreign key constraints on Schedule columns: HorseID references Horse. When an ID is deleted from Horse matching Lesson Schedule rows are deleted. Student ID references Student. When an ID is deleted from Student, matching Student ID 's are set to NULL).