|The statements select RIGHT('l wish I had attended the practice hours', 9) and select REVERSE(LEFT(REVERSE('I wish I had attended the practice hours'),9)) return/produce the same result.
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SQL. Write true or false.
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- true/false INNER JOIN combines two relations. It takes the second relation, and appends it to the end of the first relation. In Corelated Subqueries, subquery is executed independent of the outer query: subquery is executed only once. SELECT * FROM sys.Relations displays information about all the user-defined relations within a database. Given GENDER and STUDENT relations, SELECT Gender, FName, LName FROM GENDER LEFT OUTER JOIN STUDENT ON STUDENT.GenderCode = GENDER.GenderCode ≡ SELECT Gender,FName, LName FROM STUDENT RIGHT OUTER JOIN GENDER ON STUDENT.GenderCode = GENDER.GenderCode The statements select RIGHT('I wish I had attended the practice hours', 9) and select…Using the Henry Books database,Henry Books no longer carries books written by Barbara Owen. Delete this author from the authors table. You will insert 2 snips for this question. What construct did you use to delete author Barbara Owens? Insert the snip of the construct used: Insert the snip of the authors table. Be sure all rows are displayed:Using the Henry Books database, add the new title from Stephen King to the wrote table: Book code = 3578 Author number = 6 Edition = 1 You will insert 2 snips for this question. What construct did you use to add a row to the wrote table. Insert the snip of the construct used: Insert the snip of the wrote table. Be sure the new row is displayed:
- Write Mysql code for: 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 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. Hint: Perform a join on the LessonSchedule, Student, and Horse tables, matching the student IDs and horse IDs.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 MAINTENANCE_TYPE_ID should be foreign keys to their original tables. Cascade update and cascade delete the foreign keys. Create a new table to store maintenance operations Test Query DESCRIBE MAINTENANCES Expected Results Field Type Null Key Default Extra CAR_ID char(5) NO PRI NULL MAINTENANCE_TYPE_ID char(5) NO PRI NULL MAINTENANCE_DUE date NO PRI NULLTask 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 please
- Considering Vaccination Database, write queries to: Display the Subject CNIC, Name, Contact, Dose1 Center, and Dose2 Center as shown below: CNIC Name Contact Dose1 Center Dose2 Center 22401-6645321-1 Nasir 3409991112 Lachi Kohat 2 14301-6045321-5 Shahab 3409991112 kohat 3 Dara The subjects who have been vaccinated different types in Dose1 and Dose2. For instance, subjects who were vaccinated ‘Sinovac’ in the first dose, while Pfizer in the second dose.How many Viles of each type have been consumed so far. How many subjects are vaccinated from expired viles. Suggest the name of Incharge for the best performance award based on the highest number of subjects vaccinated on a single dayUsing the Henry Books database,update the paperback field for the book titled Black Houseto Y. You will insert 2 snips for this question. Insert a snip of the construct used to update the table: Insert your screen shot of the Books table here (be certain Black Housedisplays): Using the Henry Books database,add a new row to the AUTHORS table. The new author’s name is John Grisham. You will insert 2 snip s for this question. Insert a snip of the construct used to update the table: Insert your snip of the Authors table here showing the update: Using the Henry Books database,create a view named Paperback. It consists of the book code, book title, publisher name, and book price for every book that is available in paperback. You will insert 2 snips for this question. Insert a snip of the construct used to create this view: Run a query using this view and insert a snip of the resultset: Using the Henry Books database,write a stored procedure that…A social media application stored information about each registered user in the table create table user (id int primary key auto_increment, name varchar(100) not null) A user can have many "friends" and can also be a "friend" to many other users. Specify how this relationship would be implemented by coding the create table statement(s) for the tables.
- Views in SQL are kind of virtual tables. A view also has rows and columns as they are in a real table in the database. We can create a view by selecting fields from one or more tables present in the database. A View can either have all the rows of a table or specific rows based on certain conditions. Under what circumstances would you create a View?Using the WideWorldDistributors database and the Sales schema create a function that takes InvoiceID as an input parameter and returns all the rows from the table InvoiceLines for the InvoiceID value passed into the function. If the result is a NULL return a zeroFor the following Employee database, write a query to find the ID of each employee with no manager. Note that an employee may simply have no manager listed or may have a null manager. Write your query using an outer join and then write it again using no outer join at all. employee (ID, person_name, street, city) works (ID, company_name, salary) соmpany (compaпу лате, сіty) manages (ID, manager_id)