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Q) In a contingency table, the number of rows and columns
must always be 2 .
must always be the same.
must add to 100%
None of the above.
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- Q9) find the least expensive priceQ10) List the UNIQUE v_code of vendors that provide productsQ11) find the most expensive priceQ12) List the number of products by vendor with the average price, include only the rows withaverage price below 10.00Q13) List all vendor rows (including the ones that have no matching products) and all matchingproduct rowsJ 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)…Description The Employee table holds all employees including their managers. Every employee has an Id, and there is also a column for the manager Id. +--- | Id | Name | Salary | ManagerId | +---- | 1 | 2 | 3 | 4 +---- | Joe | 70000 | 3 | Henry | 80000 | 4 | Sam | Max Given the Employee table, write a SQL query that finds out employees who earn more than their managers. For the above table, Joe is the only employee who earns more than his manager. + | Employee | + | Joe + | 60000 | NULL | 90000 | NULL I
- Q4 There are 9 workers for ASH Development Sdn. Bhd. Unfortunately, there are only 4 rooms available for these workers. Every week, a worker name is randomly selected to do odd jobs for the company. When a worker has been selected randomly, a these rooms are full. Based on Figure Q4, worker's ID number 0 (Umar) is randomly selected for the first week, and the 4 boxes represent 4 rooms for as shown in Table Q4. room needs to be vacated if workers. Table Q4 Worker's ID Worker's Name Umar 1. Lukman Arif Yusuf Anas Muadz Aleef Hafiz 8. Amir 9. Taufik WI 4 6 2 9. 4 1 3 8 D R2 R3 R4 W W W1 w1 Wi w1 W1 w1 w1 wi Wi W1 2 3 4 56 78 9 1 2 3 4 5 6 8 9 Figure Q4 Investigate the number of page faults occur by illustrating the way how the room is managed using the list of weekly random selection of workers as shown in Figure Q4 using the following algorithms: (a) Optimal Page Replacement (OPR) replacement algorithm 2. RRRSQL code for: (1) Hint: A NULL in the hours column should be considered as zero hours. Find the ssn, lname, and the total number of hours worked on projects for every employee whose total is less than 40 hours. Sort the result by lname */ /* (2) For every project that has more than 2 employees working on it: Find the project number, project name, number of employees working on it, and the total number of hours worked by all employees on that project. Sort the results by project number. /* (3) For every employee who has the highest salary in their department: Find the dno, ssn, lname, and salary. Sort the results by department number. */ /* (4) For every employee who does not work on any project that is located in Houston: Find the ssn and lname. Sort the results by lname /* (5) Hint: This is a DIVISION query For every employee who works on every project that is located in Stafford: Find the ssn and lname. Sort the results by lname */Find the number of employees hired in January of all years
- Database Systems SQLThe following is a table of applicants to be considered for admission into 07BSAM: POINTS MATH SYMBOL 123 450 NAMES STUDENT NUMBER ENG SYMBOL To qualify for admission, an applicant should have at least 25 points, minimum of B symbol in Mathematics and a minimum of E symbol in English. If an applicant has a C symbol in Mathematics, then the applicant must pass an entrance test to be considered for admission. Hints: There are three modes of study: The Full-time mode, the Part-time mode and the Distance mode. Applicants can choose which mode they want provided there is space in that mode. Each of the Full- time and the Part-time modes cannot accommodate more 30 admitted students. After these two modes are full, every other qualified applicant is admitted in the Distance mode. The admission exercise is first come first served. Write a pseudocode that identifies the applicants that qualify for admission and outputs their names, student numbers and modes of study. Use a FOR-LOOP /…a) List the names (Fame and Lame) and SSN of all male employees (Sex='M). b) List the last name and SSN of employees who work on project 'City Tower', sorted by alphabetical order of last na c) Retrieve the average salary of all female employees (Sex='F'). d) List department names and the number of employees who work for each department. Sort by department name. e) Retrieve the names of employees who make at least $10,000 more than thé employee who is pald the least in
- Intersection table is needed when you have a relationship 1:1 M:N M:1 1:Mse SQL program Server2014 ... A company undertakes a number of projects, the employees work on it, and during the process of analyzing the system we found the following points: The company is made up of a number of departments (the department number, which is a single number, the name of the department, the department's website) There are employees (the employee's number is a single number, his name, address, salary, and job) The employee belongs to one department only, and each department has more than one employee. There are projects (the project number, which is a single number, the name of the project, the project site) Each project has a specific department that it manages, and the department may manage it more than one project. More than one employee works in the project, and the employee may work in more than one project. Each employee has a number of work hours per week in each project. Required: 4. Create a Trigger that indicates the end of the entry operation on any of…Question 1 Use Index and math functions to fill in a table that extracts the amounts shipped between each pair of cities in Excel file General Appliance Corporation your table should display as follows and the formula for the amount should reference the names in the From and To columns From To Amount Marrietta Cleveland 0 Marrietta Baltimore 350 Marrietta Chicago 0 Marrietta Phoneix 850 Minneapolis Cleveland 150 Minn. Baltimore 0 Minn. Chicago 500 Minn. Phoneix 150 Full explainthe this question very fast solution sent me step by step Don't ignore any part all part work u A to CText typing work only not allow paper work
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