part A Find the average of order quantity with item_code '200¹.part B Which item has the highest unit price? mysql> select * from order_db;| orderid | custid | itemcode | orderquantity | deliverydate2 |2 |22 |2 |2225020050030075~~~~N22 B25 rows in set (0.00 sec)mysql> select * from item_db;+| item_code | item_name | current_stock1033 | C855200 | 1500 | 96 rows in set (0.00 sec)800600125200265100 |300250 |550 |300 |3002020-05-302021-09-21| 2023-06-022020-05-292020-05-29| unitprice |+40 |5|15065015 |100 ||| с| R| D| C| cmodeofpayment | date_of_order |2020-05-281998-02-152024-09-031998-02-151998-02-15

Part A:SELECT AVG(orderquantity) AS avg_order_quantity FROM order_db WHERE itemcode = 200; Part…

Answered: part A Find the average of order…

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 14MC: A unique identifier for a data row that consists of more than one field is commonly called...

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Use Mysql code 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.
Write Mysql code 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 IDs.
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.
A unique identifier for a data row that consists of more than one field is commonly called a: primary plus key composite primary key foreign key none of the above
Delete the index named ITEM_INDEX3.
Q2: A-Given the following tables: Student Subject Std_ID 001 002 003 004 Fname Smith Smith Beal Thomson Lname Jolin Susan Fred Marie Std_ID 001 001 002 002 003 Semester 004 Falls03 Spro4 Falls03 C_ID Eng01 Ger01 Eng01 Ger01 Ger01 CSection Spro4 Spro4 Spro4 1. For each table in the database, identify the primary key and the foreign key(s). 2. Do the tables exhibit entity integrity? Explain your answer? 3. Do the tables exhibit referential integrity? Explain your answer? Ita01 ZZZZZZ IN 2N IN 2N IN CName English IN German English German German Italian Grade A B A B A B
MySql Workbench CREATE TABLE students ( id INT PRIMARY KEY, first_name VARCHAR(50), last_name VARCHAR(50), age INT, major VARCHAR(50), faculty VARCHAR(50)); CREATE TABLE location ( id INT PRIMARY KEY, name VARCHAR(50), rooms INT); CREATE TABLE faculty ( id INT PRIMARY KEY, name VARCHAR(50), department_id INT); 1. List last name of all students whose first name is longer than 4 letters in ascending order accordingto the last name. Duplicated rows should be removed from the output.2. Count the total number of rooms in Location.3. Find the number of students in each major.4. Find the number of employees in each department who get no commission or have salary less than5000.5. Find the maximum salary of employees in each department that the employee was hired 15 yearsbefore now. *hint: user TIMESTAMPDIFF(<unit type>,<Date_value 1>,<Date_value 2>), the unitcan be YEAR, MONTH, DAY, HOUR, etc...
Cascading Referential Integrity Constraint defines rules about how referencing tuples are affected when referenced tuples are deleted. In SQL Server Management Studio, while specifying Cascading Referential Integrity Constraint (Delete/Update Rules) you have four options: (1) ______________ _________ (2) ___________ ___________, (3) ______________ _________ (4) ___________ ___________.
3. In the OrderItems table, display a count of the number of products, grouped by prod_id. Display the count with the alias shown. Sort by prod_id in ascending order. BNBG01 BNBG02 BNBG03 BRO1 BRO2 BRO3 RGANO1 7 rows returned in 0.01 seconds PROD_ID Download 3 3 3 2 1 4 2 NUM_PROD_ID
MySQL CREATE TABLE students ( id INT PRIMARY KEY, first_name VARCHAR(50), last_name VARCHAR(50), age INT, major VARCHAR(50), faculty VARCHAR(50)); CREATE TABLE location ( id INT PRIMARY KEY, name VARCHAR(50), rooms INT); CREATE TABLE faculty ( id INT PRIMARY KEY, name VARCHAR(50), department_id INT); 4. Find the number of employees in each department who get no commission or have salary less than5000.5. Find the maximum salary of employees in each department that the employee was hired 15 yearsbefore now. *hint: user TIMESTAMPDIFF(<unit type>,<Date_value 1>,<Date_value 2>), the unitcan be YEAR, MONTH, DAY, HOUR, etc...6. Find the last name of all employees that were not hired on Tuesday *hint: (UseDATE_FORMAT() function amd the format you need is %W, also use UPPER()7. Find the number of employees in each department who have a manager.8. Find the number of employees for each manager whose employees' minimum salary is greaterthan 5000.9. Find the number of…
Textbook: Digital Systems Chapter 8 Question/Problem 44 I'm not sure if I'm running the correct Query for this problem. The question is: "Create a trigger named trg_char_hours that automatically updates the AIRCRAFT table when a new CHARTER row is added. Use the CHARTER table’s CHAR_HOURS_FLOWN to update the AIRCRAFT table’s AC_TTAF, AC_TTEL, and AC_TTER values. (Hint: use temp values, as the INSERT event does not accept the OLD keyword.)" I ran this query without any errors: CREATE TRIGGER trg_char_hours AFTER INSERT ON CHARTER FOR EACH ROW UPDATE AIRCRAFT SET AC_TTAF = AC_TTAF + NEW.CHAR_HOURS_FLOWN, AC_TTEL = AC_TTEL + NEW.CHAR_HOURS_FLOWN, AC_TTER = AC_TTER + NEW.CHAR_HOURS_FLOWN WHERE AIRCRAFT.AC_NUMBER = NEW.AC_NUMBER; But the answer is still incorrect because the last row doesn't have the expected values. I'm not sure why the test query would delete any row with a CHAR_TRIP ABOVE 10018. I attached a screen of the output I'm getting:
Cust_id(NOT NULL)Txn_date(Not NULL)Txn_type(NOT NULL)Txn_amount(NOT NULL)1 2020-01-21 deposit 821 2020-01-10 deposit 7121 2020-01-01 deposit 1962 2020-01-14 deposit 5632 2020-01-29 deposit 6263 2020-01-13 Withdraw 9953 2020-01-20 Deposit 4853 2020-01-03 Deposit 7063 2020-01-13 Purchase 6014 2020-01-11 Deposit 5205 2020-01-21 Deposit 826 2020-01-10 Deposit 7127 2020-01-01 Withdraw 1967 2020-01-14 Purchase 563 how can I make this table in oracle sql?

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