PBL Week 4_ MN405

J SHORTAND NOTATION FOR RELATIONAL SQL TABLES Notation Example Meaning Underlined A or A, B The attribute(s) is (are) a primary key Superscript name of relation AR or AR, BR The attribute(s) is (are) a foreign key referencing relation R As an example, the schema R(A, B, C, D, ES) S(F, G, H) corresponds to the following SQL tables: CREATE TABLE R ( A <any SQL type>, B <any SQL type>, C <any SQL type>, D <any SQL type>, E <any SQL type>, PRIMARY KEY(A), FOREIGN KEY (E) REFERENCES S(F) ); CREATE TABLE S ( F <any SQL type>, G <any SQL type>, H <any SQL type>, PRIMARY KEY(F)) EXERCISE Consider the following relational schema, representing five relations describing shopping transactions and information about credit cards generating them [the used notation is explained above]. SHOPPINGTRANSACTION (TransId, Date, Amount, Currency, ExchangeRate, CardNbrCREDITCARD, StoreIdSTORE) CREDITCARD (CardNbr, CardTypeCARDTYPE, CardOwnerOWNER, ExpDate, Limit)…

SBN Title Author 12345678 The Hobbit J.R.R. Tolkien 45678912 DaVinci Code Dan Brown Your student ID DBS311 Your Name use the following statement to Write a PL/SQL Function that accepts 4 parameters, 2 strings representing students names, and 2 integers representing the marks they received in DBS311. The function will determine which student had the higher mark and return the name of the student. If the marks were the same, then return the word "same" and return "error" if an error occurs or the calculation can not be determined.

relation: Book (BookID, Author, ISBN, Title) Write a PL/SQL block of code that performs the following tasks: Read a Book id provided by user at run time and store it in a variable. Fetch the Author and title of the book having the entered id and store them inside two variables Display the fetched book author and title.

Write a PL/SQL block that uses searched CASE statement to classify students based on their scores in a certain test according to the following table:   Score Action >= 90 A scholarship is given 80-89 A certificate is given 70-79 A training course is recommended <70 The course should be repeated   Write the searched CASE structure only.

SQL QUERIES Employees(EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,COMMISSION_PCT,MANAGER_ID,DEPARTMENT_ID)Department(DEPARTMENT_ID,DEPARTMENT_NAME,MANAGER_ID,LOCATION_ID)A: Write a query in SQL to display the minimum, maximum salary and DEPARTMENT_ID of all thosedepartments whose minimum salary is greater than 4000 in ascending order. B: Write a Query in SQL to display characters only from 2 to 5 of “Last_Name” from Employees table. C: Write a query in SQL to display the HIRE_DATE of every employee in following format.Format: 11-july-2019

SQL QUERIES Employees(EMPLOYEE_ID,FIRST_NAME,LAST_NAME,EMAIL,PHONE_NUMBER,HIRE_DATE,JOB_ID,SALARY,COMMISSION_PCT,MANAGER_ID,DEPARTMENT_ID)Department(DEPARTMENT_ID,DEPARTMENT_NAME,MANAGER_ID,LOCATION_ID)A: Write a query in SQL to display the minimum, maximum salary and DEPARTMENT_ID of all thosedepartments whose minimum salary is greater than 4000 in ascending order.

SQL query Knowledge

sql queries Employees(EMPLOYEE_ID, FIRST_NAME, LAST_NAME, EMAIL, PHONE_NUMBER, HIRE_DATE,JOB_ID, SALARY, COMMISSION_PCT, MANAGER_ID, DEPARTMENT_ID,DEPARTMENT_NAME)Department(DEPARTMENT_ID, DEPARTMENT_NAME, MANAGER_ID, LOCATION_ID)Location(LOCATION_ID,STREET_ADDRESS,POSTAL_CODE,CITY,STATE_PROVINCE,COUNTRY_ID) Write a query in SQL to display the Entire data of All those employees whoseDEPARTMENT_ID is greater than the DEPARTMENT_ID of all those employees who earn morethan 50,000 per month Write a query in SQL to display the minimum, maximum salary and DEPARTMENT_NAMEof all those departments whose minimum salary is greater than 4000 in ascending order.

SQL QUERIES Employees(EMPLOYEE_ID, FIRST_NAME, LAST_NAME, EMAIL, PHONE_NUMBER, HIRE_DATE,JOB_ID, SALARY, COMMISSION_PCT, MANAGER_ID, DEPARTMENT_ID,DEPARTMENT_NAME)Department(DEPARTMENT_ID, DEPARTMENT_NAME, MANAGER_ID, LOCATION_ID)Location(LOCATION_ID,STREET_ADDRESS,POSTAL_CODE,CITY,STATE_PROVINCE,COUNTRY_ID) Write a Query in SQL to delete the record of all those cities where city name ends with b fromlocations table.

SQL QUERIES Employees(EMPLOYEE_ID, FIRST_NAME, LAST_NAME, EMAIL, PHONE_NUMBER, HIRE_DATE,JOB_ID, SALARY, COMMISSION_PCT, MANAGER_ID, DEPARTMENT_ID,DEPARTMENT_NAME)Department(DEPARTMENT_ID, DEPARTMENT_NAME, MANAGER_ID, LOCATION_ID)Location(LOCATION_ID,STREET_ADDRESS,POSTAL_CODE,CITY,STATE_PROVINCE,COUNTRY_ID) Write a query in SQL to display the DEPARTMENT_NAME of all those Departments whoseDEPARTMENT_ID is greater than the DEPARTMENT_ID of Physics department. Write a Query in SQL to show the FIRST_NAME of all those employees whose salary is lessthan the salary of all those employees whose MANAGER_ID is 101 or 102.

**In SQL** Write a SELECT statement that returns these columns: InstructorDept The DepartmentName column from the Departments table for a related instructor LastName The LastName column from the Instructors table FirstName The FirstName column from the Instructors table CourseDescription The CourseDescription column from the Courses table CourseDept The DepartmentName column from the Departments table for a related instructor Return one row for each course that’s in a different department than the department of the instructor assigned to teach that course. (Hint: You will need to join the Departments table to both the Instructors table and the Courses table, which will require you to use table aliases to distinguish the two tables.)

PL/SQL Question I need to build pl/sql block that prompts a user for the number of visitors each day for the past 5 days and then displays the average number of visitors per day.  For example;  day 1: 19 day 2: 21 day 3: 23 ... The avg number of visitors is: ___    like this.

Database design Objectives: To understand and be able to write simple SQL queries Instruction:   Refer to HR schema to answer the questions Include screenshot of your code and output of each question   1. Write SQL query that displays the last name and salary of employees earning more than $12,000.     2. Write SQL query that displays the last name and department number for employee number 176.   3. Write SQL query to display the last name and salary for all employees whose salary is not in the range $5,000 through $12,000.     4. Write SQL query to display the last name, job ID, and hire date for employees with the last names of Matos and Taylor. Order the query in ascending order by hire date.   5. Display the last name and department ID of all employees in departments 20 or 50 in ascending alphabetical order by name.     6. Write a query that displays the last names of all employees who have both an “a” and an “e” in their last name.   7. Write a query to display the employee…

fa table in a SQL database has a column of type `VARCHAR(100)", what does the "100" signify? a) The number of records that can be stored in the column. b) The number of unique characters that can be stored in the column. c) The maximum length of a string that can be stored in the column. d) The minimum length of a string that can be stored in the column.

Write the code steps to do the following within SQL Create a database, this database includes two tables, and each table holds specific columns, and one of these columns is made a master key and the value of a specific column is unique in the two tables. And then find the number of elements in one of the two tables, if the number of elements is less than 5 find the difference between the two tables, and if greater than 5 find the multiplication Product between the two tables and Print a message explaining that

**IN SQL ** 1- Write a query clause to display the internal structure of the departments table, then write a query clause to display all its data, so that the result appears as follows:   ** SEE PIC **   2- Write a query sentence to display the names, jobs, dates of appointment and employee numbers so that the employee number appears first

SQL

introduction to databases Write PL/SQL code to create a function called best_ranked_post to list out all post which gets more than 50 likes.

example inn 100 sqlmstatement