Homework Answers
Answer 9) option b i.e Left outer join. LEFT OUTER JOIN / LEFT JOIN returns all the rows from the LEFT table and the corresponding matching rows from the right table. If right table doesn’t have the matching record then for such records right table column will have NULL value in the result.
Answer 10) option c i.e Right outer join. RIGHT OUTER JOIN / RIGHT JOIN returns all the rows from the RIGHT table and the corresponding matching rows from the left table. If left table doesn’t have the matching record then for such records left table column will have NULL value in the result.
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Question 9 (1 point) Saved 9. What type of JOIN returns all rows from the left...
Match the type of join to the situation A. RIGHT B. INNER C. LEFT D. OUTER...
Match the type of join to the situation A. RIGHT B. INNER C. LEFT D. OUTER All records are returned. If they can be matched, they are. If they cannot be, they are attached to NULL values for the other table All of the first table's records are returned, even if they cannot be matched All of the second table's records are returned, even if they cannot be matched The only returned records are the ones where the joined fields...
QUERY EXAMPLE2 SELECTfrom Employee em (Refer to query example 2 to answer questions 12- 13) 12....
QUERY EXAMPLE2 SELECTfrom Employee em (Refer to query example 2 to answer questions 12- 13) 12. You plan to join the Location table and fear there may be some employees with no location. You want to make sure that the query returns a list of all employee What join clause would you add to the query above? records. A. LEFT JOIN Location lo ON em.LocationlD lo LocationID B. RIGHT JOIN Location lo ON em.LocationID lo.LocationlD C. INNER JOIN Location lo...
I need help with the next TWO SQL question Concepts Question 1.2: Discuss what type of...
I need help with the next TWO SQL question
Concepts Question 1.2: Discuss what type of relationship exists
between STUDENT and PROFESSOR. (Recall that relationships can be in
the form of 1-1, 1-M, M:N.)
Table name: STUDENT STU CODE PROF CODE 100278 128569 512272 531235 531268 553427 Table name: PROFESSOR PROF CODE DEPT CODE 26 36 Figure 1 Concepts Question 1.1: Using the STUDENT and PROFESSOR tables displayed in Figure 1, discuss (illustrate) the difference between 4 types of joins;...
Question 19 (1 point) 19. Which statement can help us to find out which phone has...
Question 19 (1 point) 19. Which statement can help us to find out which phone has never been ordered by customers? a. select Products.ProdName, Orders.Quantity from Products left outer join Orders on Products.ProdID=Orders.ProdID where Orders. Quantity is null; b. select Products.ProdName, Orders.Quantity from Products right outer join Orders on Products ProdID=Orders.ProdID where Orders. Quantity is null: c. select Products ProdName, Orders. Quantity from Products inner join Orders on Products. ProdID=Orders.ProdID where Orders.Quantity is null; d. select Products. ProdName, Orders.Quantity from...
i need all Question 1 (1 point) ✓ Saved Many heat-sensitive and oxygen-sensitive solids, such as...
i need all
Question 1 (1 point) ✓ Saved Many heat-sensitive and oxygen-sensitive solids, such as camphor, are purified by warming under vacuum. The solid vaporizes directly, and the vapor crystallizes on a cool surface. What phase changes are involved in the purification of camphor? A) evaporation and freezing B) sublimation and deposition C) sublimation and freezing D) evaporation and deposition Question 2 (1 point) ✓ Saved Consider Cl2, HCI, F2, NaF and HF. Which compound would you expect to...
Question 11 (1 point) Saved Which of the following is not a method of defining al...
Question 11 (1 point) Saved Which of the following is not a method of defining al ealthcare market? OA) Opportunities OB) Population segments OC) Reimbursement patterns OD) Consumer demand
is this correct? Question 13 (0.5 points) Saved What is the pH of a 0.24 M...
is this correct?
Question 13 (0.5 points) Saved What is the pH of a 0.24 M solution of sodium propionate, NaC3H307, at 25°C? (For propionic acid, HC2H5O2, Ke = 1.3 * 10-9 at 25°C.) a) 11.10 Ob) 7.66 OC) 9.13 od) 6.34 Oe) 4.87
Saved Question 20 (1 point) What is a bank run? O A) A situation where a...
Saved Question 20 (1 point) What is a bank run? O A) A situation where a commercial bank is holding zero reserves. B) A panic situation where many depositors rush simultaneously to withdraw their deposit money in the form of cash. OC) A situation where all commercial banks in the system are simultaneously short of reserves. O D) The collapse of a non-commercial bank as a result of non-payment of loans. E) The collapse of a commercial banks as a...
Question 4 (1 point) Saved Which of the following is used in gene recombination of BCR...
Question 4 (1 point) Saved Which of the following is used in gene recombination of BCR subunits AND gene recombination of TCR subunits? O a) Rag1/2 Ob) RSS Oc) TUT d) All of the above. Question 5 (1 point) Saved Thymocytes undergoing B-selection express which of the following? a) pre-T Ob) CD4 O CDB
Question 11 (1 point) 11. Which of the following is a request that can be answered...
Question 11 (1 point) 11. Which of the following is a request that can be answered using an OUTER JOIN? a. Show me customers and employees who have the same name. b. Find the bowlers who live in the same ZIP code c. What products have never been ordered? d. Show me the students and their teachers who have the same first name. Question 12 (1 point) 12. What keyword is used to provide a name for an expression in...
QUERY EXAMPLE2 SELECTfrom Employee em (Refer to query example 2 to answer questions 12- 13) 12. You plan to join the Location table and fear there may be some employees with no location. You want to make sure that the query returns a list of all employee What join clause would you add to the query above? records. A. LEFT JOIN Location lo ON em.LocationlD lo LocationID B. RIGHT JOIN Location lo ON em.LocationID lo.LocationlD C. INNER JOIN Location lo...
I need help with the next TWO SQL question
Concepts Question 1.2: Discuss what type of relationship exists
between STUDENT and PROFESSOR. (Recall that relationships can be in
the form of 1-1, 1-M, M:N.)
Table name: STUDENT STU CODE PROF CODE 100278 128569 512272 531235 531268 553427 Table name: PROFESSOR PROF CODE DEPT CODE 26 36 Figure 1 Concepts Question 1.1: Using the STUDENT and PROFESSOR tables displayed in Figure 1, discuss (illustrate) the difference between 4 types of joins;...
Question 19 (1 point) 19. Which statement can help us to find out which phone has never been ordered by customers? a. select Products.ProdName, Orders.Quantity from Products left outer join Orders on Products.ProdID=Orders.ProdID where Orders. Quantity is null; b. select Products.ProdName, Orders.Quantity from Products right outer join Orders on Products ProdID=Orders.ProdID where Orders. Quantity is null: c. select Products ProdName, Orders. Quantity from Products inner join Orders on Products. ProdID=Orders.ProdID where Orders.Quantity is null; d. select Products. ProdName, Orders.Quantity from...
i need all
Question 1 (1 point) ✓ Saved Many heat-sensitive and oxygen-sensitive solids, such as camphor, are purified by warming under vacuum. The solid vaporizes directly, and the vapor crystallizes on a cool surface. What phase changes are involved in the purification of camphor? A) evaporation and freezing B) sublimation and deposition C) sublimation and freezing D) evaporation and deposition Question 2 (1 point) ✓ Saved Consider Cl2, HCI, F2, NaF and HF. Which compound would you expect to...
Question 11 (1 point) Saved Which of the following is not a method of defining al ealthcare market? OA) Opportunities OB) Population segments OC) Reimbursement patterns OD) Consumer demand
is this correct?
Question 13 (0.5 points) Saved What is the pH of a 0.24 M solution of sodium propionate, NaC3H307, at 25°C? (For propionic acid, HC2H5O2, Ke = 1.3 * 10-9 at 25°C.) a) 11.10 Ob) 7.66 OC) 9.13 od) 6.34 Oe) 4.87
Saved Question 20 (1 point) What is a bank run? O A) A situation where a commercial bank is holding zero reserves. B) A panic situation where many depositors rush simultaneously to withdraw their deposit money in the form of cash. OC) A situation where all commercial banks in the system are simultaneously short of reserves. O D) The collapse of a non-commercial bank as a result of non-payment of loans. E) The collapse of a commercial banks as a...
Question 4 (1 point) Saved Which of the following is used in gene recombination of BCR subunits AND gene recombination of TCR subunits? O a) Rag1/2 Ob) RSS Oc) TUT d) All of the above. Question 5 (1 point) Saved Thymocytes undergoing B-selection express which of the following? a) pre-T Ob) CD4 O CDB
Question 11 (1 point) 11. Which of the following is a request that can be answered using an OUTER JOIN? a. Show me customers and employees who have the same name. b. Find the bowlers who live in the same ZIP code c. What products have never been ordered? d. Show me the students and their teachers who have the same first name. Question 12 (1 point) 12. What keyword is used to provide a name for an expression in...
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