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
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- Which of the following SQL statements is invalid and returns an error message? ALTER TABLE books ADD CONSTRAINT books_pubid_uk UNIQUE (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_pk PRIMARY KEY (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_nn NOT NULL (pubid); ALTER TABLE books ADD CONSTRAINT books_pubid_fk FOREIGN KEY (pubid) REFERENCES publisher (pubid); All of the above statements are invalid.In the initial creation of a table, if a UNIQUE constraint is included for a composite column that requires the combination of entries in the specified columns to be unique, which of the following statements is correct? a. The constraint can be created only with the ALTER TABLE command. b. The constraint can be created only with the table-level approach. c. The constraint can be created only with the column-level approach. d. The constraint can be created only with the ALTER TABLE MODIFY command.Which of the following is a correct statement? a. A commit is issued implicitly when a user exits SQL Developer or SQLPlus. b. A commit is issued implicitly when a DDL command is executed. c. A commit is issued automatically when a DML command is executed. d. All of the above are correct. e. Both a and b are correct. f. Both a and c are correct.
- 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) QUESTION : 1. Write a PL/SQL PROCEDURE that will list the project names given the course ID. 2. Call the procedure from an anonymous block. Allow the user to enter the course ID (courseno)Use phpmyadmin to create a MySQL database called “library” that contains the following tables: Author Field name Data type Constraint AuthorID Integer, auto-increment Primary key Name Up to 40 characters Gender Either ‘male’ or ‘female’ Email Up to 20 characters Book Field name Data type Constraint BookID Integer, auto-increment Primary key Title Up to 50 characters Price Double Publish Field name Data type Constraint PubID Integer, auto-increment Primary key AuthorID Integer, auto-increment Foreign key BookID Integer, auto-increment Foreign key PubDate DATE Insert 2 records in the table Author, 2 records in the table Book and insert their corresponding records in the table PublishYou are required to create the following tables in a database named STUDENT_REGISTRATIONS. Ensure that you create the database and table objects exactly as depicted below.STUDENTSSTUDENT_ID VARCHAR(8) NOT NULL PRIMARY KEYSTUDENT_NAME VARCHAR(40) NOT NULLSTUDENT_SURNAME VARCHAR(40) NOT NULLMODULESMODULE_ID VARCHAR(8) NOT NULL PRIMARY KEYMODULE_NAME VARCHAR(40) NOT NULLMODULE_CREDIT SMALLINT NOT NULLSTUDENT_MODULESSTUDENT_ID VARCHAR(8) NOT NULL PRIMARY KEYFOREIGN KEY REFERENCES STUDENTS(STUDENT_ID)MODULE_ID VARCHAR(8) NOT NULL PRIMARY KEYFOREIGN KEY REFERENCES MODULES(MODULE_ID)LECTURERSLECTURER_ID VARCHAR(8) NOT NULL PRIMARY KEYLECTURER_NAME VARCHAR(40) NOT NULLLECTURER_SURNAME VARCHAR(40) NOT NULL LECTURER_MODULESMODULE_ID VARCHAR(8) NOT NULL PRIMARY KEYFOREIGN KEY REFERENCES MODULES(MODULE_ID)LECTURER_ID VARCHAR(8) NOT NULL PRIMARY KEYFOREIGN KEY REFERENCES
- 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.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. Hint: Perform a join on the Student and LessonSchedule tables, matching the student IDsThe 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 for Feb 1, 2020 with the lesson date/time, student's first and last names, and the horse's registered name. Order the results in ascending order by lesson date/time, then by the horse's registered name. Make sure unassigned lesson times (student ID is NULL) appear in the results.
- CREATE 3 tables as listed below in your own database. */ CREATE TABLE Customer (CustomerID VARCHAR(20) PRIMARY KEY, CustomerLName VARCHAR(30), CustomerFName VARCHAR(30), CustomerStatus VARCHAR(10)); CREATE TABLE SaleOrder (OrderID INT IDENTITY PRIMARY KEY, CustomerID VARCHAR(20) REFERENCES Customer(CustomerID), OrderDate DATE, OrderAmountBeforeTax INT); CREATE TABLE SaleOrderDetail (OrderID INT REFERENCES SaleOrder(OrderID), ProductID INT, Quantity INT, UnitPrice INT, PRIMARY KEY (OrderID, ProductID)); /* Write a trigger to put the total sale order amount before tax (unit price * quantity for all items included in an order) in the OrderAmountBeforeTax column of SaleOrder. */Population Database Compile and run CreateCityDB.java which will create a Java DB database named CityDB. The CityDB database will have a table named City, with the following columns: CityName & Population. Their Data Types: CHAR(50) Primary Key & DOUBLE. The CityName column stores the name of a city, and the Population column stores the population of that city. After you run the CreateCityDB.java program, the City table will contain 20 rows with various cities and their populations. Next, create an application that connects to the CityDB database and allows the user to select any of the following operations: Sort the list of cities by population, in ascending order. Sort the list of cities by population, in descending order. Sort the list of cities by name. Get the total population of all the cities. Get the average population of all the cities. Get the highest population. Get the lowest population. CreateCityDB.java import java.sql.*; /** This program creates the CityDB…MySQL Will you write the code in MySQL Alter table employee so that column zipCode is a foreign key to table cityState, column zipCode Alter table customer so that column zipCode is a foreign key to table cityState, column zipCode zipCode is the foreign key. Cannot add or update a child row: a foreign key constraint fails (`dealership`.`#sql-163c_33`, CONSTRAINT `customer_ibfk_1` FOREIGN KEY (`zipCode`) REFERENCES `citystate` (`zipCode`)) shows on my screen after I alter table employee.
