Are the resulting relations of PRODUCT and JOIN operation the same?

Are the resulting relations of PRODUCT and JOIN operation the same?
by

1 Answer

Answer :

No.
PRODUCT: Concatenation of every row in one relation with every row in another. JOIN: Concatenation of rows from one relation and related rows from another
by

Related questions

In mapping of ERD to DFD a) entities in ERD should correspond to an existing entity/store in DFD b) entity in DFD is converted to attributes of an entity in ERD c) relations in ERD has 1 to 1 correspondence to processes in DFD d) relationships in ERD has 1 to 1 correspondence to flows in DFD

Description : In mapping of ERD to DFD a) entities in ERD should correspond to an existing entity/store in DFD b) entity in DFD is converted to attributes of an entity in ERD c) relations in ERD has 1 to 1 correspondence to processes in DFD d) relationships in ERD has 1 to 1 correspondence to flows in DFD

Last Answer : a) entities in ERD should correspond to an existing entity/store in DFD

Let R and S be two fuzzy relations defined as: Image Then, the resulting relation, T, which relates elements of universe x to elements of universe z using max-min composition is given by

Description : Let R and S be two fuzzy relations defined as: Then, the resulting relation, T, which relates elements of universe x to elements of universe z using max-min composition is given by

Last Answer : Answer: C

The join defined by the default data link is an outer join yes or no?

Description : The join defined by the default data link is an outer join yes or no?

Last Answer : Yes

What is a join ? Explain the different types of joins ?

Description : What is a join ? Explain the different types of joins ?

Last Answer : Join is a query which retrieves related columns or rows from multiple tables.Self Join - Joining the table with itself.Equi Join - Joining two tables by equating two common columns.Non-Equi Join - ... that query can also retrieve rows that do not have corresponding join value in the other table.

What is a OUTER JOIN?

Description : What is a OUTER JOIN?

Last Answer : Outer Join--Its a join condition used where you can query all the rows of one of the tables in the join condition even though they don’t satisfy the join condition.

While specifying master/detail relationship between two blocks specifying the join condition is a must ? True or False. ?

Description : While specifying master/detail relationship between two blocks specifying the join condition is a must ? True or False. ?

Last Answer : True

What are the different types of JOIN operations?

Description : What are the different types of JOIN operations?

Last Answer : Equi Join: This is the most common type of join which involves only equality comparisions. The disadvantage in this type of join is that there

Spurious tuples may occur due to i. Bad normalization ii. Theta joins iii. Updating tables from join a) i& ii b) ii & iii c) i& iii d) ii & iii

Description : Spurious tuples may occur due to i. Bad normalization ii. Theta joins iii. Updating tables from join a) i& ii b) ii & iii c) i& iii d) ii & iii

Last Answer : a) i& ii b) ii & iii

What is join dependency and inclusion dependency?

Description : What is join dependency and inclusion dependency?

Last Answer : Join Dependency: A Join dependency is generalization of Multivalued dependency.A JD {R1, R2, ,Rn} is said to hold over a relation R if R1, R2, R3, , Rn is a lossless-join ... columns of a relation are contained in other columns. A foreign key constraint is an example of inclusion dependency.

What is Lossless join property?

Description : What is Lossless join property?

Last Answer : It guarantees that the spurious tuple generation does not occur with respect to relation schemas after decomposition.

How is link tool operation different bet. reports 2 & 2.5?

Description : How is link tool operation different bet. reports 2 & 2.5?

Last Answer : In Reports 2.0 the link tool has to be selected and then two fields to be linked are selected and the link is automatically created. In 2.5 the first field is selected and the link tool is then used to link the first field to the second field.

The ............ operator preserves unmatched rows of the relations being joined. A) Inner join B) Outer join C) Union D) Union join

Description : The ............ operator preserves unmatched rows of the relations being joined. A) Inner join B) Outer join C) Union D) Union join

Last Answer : B) Outer join

If you join your class on the very first day of opening the session, and take introduction of the students, the primary objective of this introduction(for you) will be Options: A) Exploration of potential students who serve you throughout the session B) Development of friendly relations with the students of administrative class C) Selection of those students who can do the school job for you D) To know about student's potentialities along with their family status

Description : If you join your class on the very first day of opening the session, and take introduction of the students, the primary objective of this introduction(for you) will be Options: A) Exploration of ... do the school job for you D) To know about student's potentialities along with their family status

Last Answer : D) To know about student's potentialities along with their family status 

When you are invited for a feast, then you have the idea that Options: A) Do wastage of food in order to pay the gift or money on the occasion B) It is an opportunity to take food outside home, therefore, enjoy it with whole family C) That families should join such parties on the basis of relations and affinity D) Never waste any food particle whether you are at home or in feast

Description : When you are invited for a feast, then you have the idea that Options: A) Do wastage of food in order to pay the gift or money on the occasion B) It is an opportunity to take food ... the basis of relations and affinity D) Never waste any food particle whether you are at home or in feast

Last Answer : C) That families should join such parties on the basis of relations and affinity 

Absolute entitiesare_ Ss whom value signify storage locations that are independent of resulting machine code: a. Numeric constants b. String constants c. Fixed addresses d. Operation codes e. Allofthese

Description : Absolute entitiesare_ Ss whom value signify storage locations that are independent of resulting machine code: a. Numeric constants b. String constants c. Fixed addresses d. Operation codes e. Allofthese

Last Answer : e. Allofthese

Error rate is A. an error-detectingcode based ona summation operation performed onthebits to be checked. B. a checkbit appended to anarrayof binary digits to make thesum of all thebinary digits. C. a code in which each expressionconforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rulesof constructionand thus thepresence of the errors isdetected. D. the ratioof the number ofdata units in error to the total number of dataunits E. None of the above

Description : Error rate is A. an error-detectingcode based ona summation operation performed onthebits to be checked. B. a checkbit appended to anarrayof binary digits to make thesum of all thebinary digits. C. a ... ratioof the number ofdata units in error to the total number of dataunits E. None of the above

Last Answer : the ratioof the number ofdata units in error to the total number of dataunits

s it possible to set a filter condition in a cross product group in matrix reports?

Description : s it possible to set a filter condition in a cross product group in matrix reports?

Last Answer : No

How can a group in a cross products be visually distinguished from a group that does not form a cross product?

Description : How can a group in a cross products be visually distinguished from a group that does not form a cross product?

Last Answer : A group that forms part of a cross product will have a thicker border.

What is the purpose of the product order option in the column property sheet?

Description : What is the purpose of the product order option in the column property sheet?

Last Answer : To specify the order of individual group evaluation in a cross products.

Which of the following operation is used if we are interested in only certain columns of a table? (A) PROJECTION (B) SELECTION (C) UNION (D) JOIN

Description : Which of the following operation is used if we are interested in only certain columns of a table? (A) PROJECTION (B) SELECTION (C) UNION (D) JOIN

Last Answer : (A) PROJECTION

‘AS’ clause is used in SQL for (A) Selection operation. (B) Rename operation. (C) Join operation. (D) Projection operation.

Description : ‘AS’ clause is used in SQL for (A) Selection operation. (B) Rename operation. (C) Join operation. (D) Projection operation.

Last Answer : (B) Rename operation.

Which of the following is true ? I. Implementation of self-join is possible in SQL with table alias. II. Outer-join operation is basic operation in relational algebra. III. Natural join and outer join operations are equivalent. (A) I and II are correct. (B) II and III are correct. (C) Only III is correct. (D) Only I is correct.

Description : Which of the following is true ? I. Implementation of self-join is possible in SQL with table alias. II. Outer-join operation is basic operation in relational algebra. III. Natural join and outer join operations are ... (B) II and III are correct. (C) Only III is correct. (D) Only I is correct.

Last Answer : (D) Only I is correct.

Toluene is nitrated and the resulting product is reduct is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then with

Description : Toluene is nitrated and the resulting product is reduct is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then with

Last Answer : Toluene is nitrated and the resulting product is reduct is reduced with tin and hydrochloric acid ... D. mixture of o-and p-bromotoulenes

Hybridoma cells are (a) only cells having oncogenes (b) product of spore formation in bacteria (c) nervous cells of frog (d) hybrid cells resulting from myeloma cells.

Description : Hybridoma cells are (a) only cells having oncogenes (b) product of spore formation in bacteria (c) nervous cells of frog (d) hybrid cells resulting from myeloma cells.

Last Answer : (d) hybrid cells resulting from myeloma cells.

The product of either force of couple with the arm of the couple is called (A) Resultant couple (B) Moment of the forces (C) Resulting couple (D) Moment of the couple

Description : The product of either force of couple with the arm of the couple is called  (A) Resultant couple  (B) Moment of the forces  (C) Resulting couple  (D) Moment of the couple 

Last Answer : (D) Moment of the couple 

TQM initiatives a. improve business procedures, resulting in improved efficiencies and cost structures. b. improve product quality while reducing the time and resources required to design, manufacture, warehouse and ship products. c. improve business procedures and product quality, resulting in improved efficiencies and costs structures. d. improve product quality resulting in improved cost structures. e. improve product quality and business procedures.

Description : TQM initiatives a. improve business procedures, resulting in improved efficiencies and cost structures. b. improve product quality while reducing the time and resources required to design, ... quality resulting in improved cost structures. e. improve product quality and business procedures.

Last Answer : b. improve product quality while reducing the time and resources required to design, manufacture, warehouse and ship products.

Process Management Initiatives a. improve business procedures, resulting in improved efficiencies and cost structures. b. improve product quality while reducing the time and resources required to design, manufacture, warehouse and ship products. c. improve business procedures and product quality, resulting in improved efficiencies and costs structures. d. improve product quality and business procedures.

Description : Process Management Initiatives a. improve business procedures, resulting in improved efficiencies and cost structures. b. improve product quality while reducing the time and resources required ... improved efficiencies and costs structures. d. improve product quality and business procedures.

Last Answer : a. improve business procedures, resulting in improved efficiencies and cost structures.

This early atmosphere was rich in CO2 and H2O. How did oxygen enter our atmosphere? (a) Meteorites. (b) From organisms that evolved to convert CO2 and H20 into sugars (energy), resulting in the waste product oxygen. (c) Volcanic emissions. (d) Methanogenic bacteria.

Description : This early atmosphere was rich in CO2 and H2O. How did oxygen enter our atmosphere? (a) Meteorites. (b) From organisms that evolved to convert CO2 and H20 into sugars (energy), resulting in the waste product oxygen. (c) Volcanic emissions. (d) Methanogenic bacteria.

Last Answer : (b) From organisms that evolved to convert CO2 and H20 into sugars (energy), resulting in the waste product oxygen.

How do you use the same lov for 2 columns

Description : How do you use the same lov for 2 columns

Last Answer : We can use the same lov for 2 columns by passing the return values in global values and using the global values in the code

Can a button have icon and lable at the same time ?

Description : Can a button have icon and lable at the same time ?

Last Answer : NO

If you have property class attached to an item and you have same trigger written for the item . Which will fire first?

Description : If you have property class attached to an item and you have same trigger written for the item . Which will fire first?

Last Answer : Item level trigger fires , If item level trigger fires, property level trigger won't fire. Triggers at the lowest level are always given the first preference. The item level trigger fires first and then the block and then the Form level trigger.

Is it possible to attach same library to more than one form?

Description : Is it possible to attach same library to more than one form?

Last Answer : Yes

Can we create two blocks with the same name in form 3.0 ?

Description : Can we create two blocks with the same name in form 3.0 ?

Last Answer : No

Give the sequence in which triggers fired during insert operations, when the following 3 triggers are defined at the same block level ?

Description : Give the sequence in which triggers fired during insert operations, when the following 3 triggers are defined at the same block level ?

Last Answer : a. ON-INSERT b. POST-INSERT c. PRE-INSERT

Can objects of the same Schema reside in different tablespaces.?

Description : Can objects of the same Schema reside in different tablespaces.?

Last Answer : Yes.

Can objects of the same schema reside in different tablespaces?

Description : Can objects of the same schema reside in different tablespaces?

Last Answer : Yes.

What is Oracle Block? Can two Oracle Blocks have the same address?

Description : What is Oracle Block? Can two Oracle Blocks have the same address?

Last Answer : Oracle formats the database files into a number of Oracle blocks when they are first created-making it easier for the RDBMS software to manage the files and easier to read data into the memory areas ... at 1. Two blocks can have the same block address if they are in different database files.

Can you have many database versions in the same RAC?

Description : Can you have many database versions in the same RAC?

Last Answer : Yes, but Clusterware version must be greater than the greater database version.

Which element of the promotional mix consists of short-term incentives to encourage the purchase of a product? A. advertising B. public relations C. direct marketing D. sales promotion

Description : Which element of the promotional mix consists of short-term incentives to encourage the purchase of a product? A. advertising B. public relations C. direct marketing D. sales promotion

Last Answer : D. sales promotion

Which of the following major promotional tools use press relations, product, Publicity, corporate communications, lobbying, and public service to communicate Information? A. Advertising B. Public relations C. Direct marketing D. Sales promotion

Description : Which of the following major promotional tools use press relations, product, Publicity, corporate communications, lobbying, and public service to communicate Information? A. Advertising B. Public relations C. Direct marketing D. Sales promotion

Last Answer : B. Public relations

Which tool of the promotional mix consists of short-term incentives to encourage the purchase or sale of a product or service? A. Advertising B. Public relations C. Direct marketing D. Sales promotion

Description : Which tool of the promotional mix consists of short-term incentives to encourage the purchase or sale of a product or service? A. Advertising B. Public relations C. Direct marketing D. Sales promotion

Last Answer : D. Sales promotion

Public Relations is managed by which marketing mix? A. Product B. Price C. Promotion D. Place

Description : Public Relations is managed by which marketing mix? A. Product B. Price C. Promotion D. Place

Last Answer : C. Promotion

If the aim of the promotion to introduce a new consumer product is to achieve high awareness levels, the firm will most likely make heavy use of _______ in the promotional mix. A)advertising. B)sales promotion. C)personal selling. D)publicity. E)public relations.

Description : If the aim of the promotion to introduce a new consumer product is to achieve high awareness levels, the firm will most likely make heavy use of _______ in the promotional mix. A)advertising. B)sales promotion. C)personal selling. D)publicity. E)public relations.

Last Answer : A)advertising.

two soccer players kick the same 2-kg ball at the same time in opposite directions One kicks with a force of 15N the other kicks with a force of 5N. what is the resulting acceleration of the ball, in m/s2?

Description : two soccer players kick the same 2-kg ball at the same time in opposite directions One kicks with a force of 15N the other kicks with a force of 5N. what is the resulting acceleration of the ball, in m/s2?

Last Answer : 5

The square of a two digit number is divided by half the number. After 36 is added to the quotient, this sum is then divided by 2. The digits of the resulting number are the same as those in the original number, but they are in reverse order. The ten's place of the original number is equal to twice the difference between its digits. What is the number?

Description : The square of a two digit number is divided by half the number. After 36 is added to the quotient, this sum is then divided by 2. The digits of the resulting number are the same as those in ... 's place of the original number is equal to twice the difference between its digits. What is the number?

Last Answer : Answer: 46

. ____________ difference is the difference resulting from reporting the same number of units

Description : . ____________ difference is the difference resulting from reporting the same number of units

Last Answer : Exchange,

A close –coiled helical spring is cut into two equal parts. The stiffness of the resulting springs will be (a) same (b) double (c) half (d) One-fourth

Description : A close –coiled helical spring is cut into two equal parts. The stiffness of the resulting springs will be (a) same (b) double (c) half (d) One-fourth

Last Answer : (b) double