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Which of the following is not a condition for the third normal form in the case of XY?

Which of the following is not a condition for the third normal form in the case of XY? Correct Answer Each attribute in X-Y is a candidate key for R

Each attribute in X-Y is a candidate key for R is not a necessary condition for the third normal form in the case of X → Y. X→Y is trivial and X is the superkey of R are necessary conditions for the third normal form.

Related Questions

Three cars start from point A together and reach point B at equal intervals. Second car whose sped is less than third car but more than first car taken a u turn and starts its journey towards A whereas third car heads for point C which is 100 km away from point B. First car and third car meet each other at mid way of A and C after third car takes u turn from C. First car travels half the distance between A and B when second reaches B. The sum of speed of second car and third car is 100 kmh.  What is the difference between speed of third car and first car?
What is the printout of the following switch statement? char ch = 'a'; switch (ch){ case 'a': case 'A': System.out.print(ch); break; case 'b': case 'B': System.out.print(ch); break; case 'c': case 'C': System.out.print(ch); break; case 'd': case 'D': System.out.print(ch); }
What is the printout of the following switch statement?
char ch = 'a'; switch (ch){ case 'a': case 'A': System.out.print(ch); break; case 'b': case 'B': System.out.print(ch); break; case 'c': case 'C': System.out.print(ch); break; case 'd': case 'D': System.out.print(ch);}
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.
Dyslexia is a perceptual disorder often occurring in persons of normal, or even above average intelligence. The reader is unable to perceive correctly what is on a page. Letters and numbers often appear reversed: "b" seems to be "d","quite" is "quiet" and "from" is "form". The reader tends to leave out letters or words or insert words or letters that are not there. Vowel and consonant sounds may be confused. Many dyslexics are left­handed or able to write with either hand. They often confuse left and right. Learning to speak may also be delayed beyond infancy. The condition seems to be inherited. It may persist into adulthood. However, with early recognition and specialized approaches to teaching reading, most dyslexics can learn to read. Some researchers believe that latent dyslexia may be aggravated by the way reading is taught. The modern whole­word, or look­and­say, method seems to be more of a hindrance to learning for dyslexics than it is for ordinary pupils. The phonetic method of teaching students to learn letters and sound them out appears to achieve better reading results. The problem of words that cannot be sounded out ­ such as rough, laugh or through ­ is not solved by phonetics. These words must simply be memorized. However, for children with dyslexia the problem can be compounded by the failure of parents or teachers to recognize the condition. This can easily lead to emotional problems for dyslexic children, who cannot understand their failure to keep up with their classmates.
Dyslexia, often occurring in persons of normal, or even above average intelligence, is a __________
Study the information carefully and answer the questions given below: If we arrange the alphabets in the word "RATE" in the English alphabetical order, word "AERT" is formed. Then the third alphabet from the left in this word is "R". similarly, from the word "OPEN" we get - "ENOP" and the third alphabet from the left is "O". From the word "CHEF" we get - "CEFH" the third alphabet from the left "F". From the word "TOY" we get - "OTY" and the third alphabet from the left is "Y". From the word "EAT" we get - "AET" and the third alphabet from the left is "T" If we use all these letters, then a meaningful English word "FORTY" can be formed. Now find which of the following word set DOES NOT give a meaningful word in a similar way.
A, M, P, D, Q, R, W and B are sitting around a circle facing at the centre. D is fourth to the left of A, who is third to the right of M. P is third to the left of Q, who is third to the left of M. R is third to the right of W, who is third to the right of B. Who is second to the left of D? 
Nine boys P, Q, R, S, T, U, V, W and X are sitting around a circular table facing towards the centre (not necessarily in the same order). U is fourth to the right of P. P is third to the right of Q. X is fourth to the left of Q. S is third to the left of X. R is third to the right of W. T is second to the left of V. Which of the following statement(s) is/are not correct? I. U and V are not the immediate neighbours. II. V is the immediate neighbour of Q and U. III. R is second to the right of T. IV. W is third to the left of U.
Directions : In each of the following questions a statement is given, followed by three conclusions. Give answer :

Statement : The economic condition continues to be critical even after a good harvest season.

Assumptions :
I. The economic condition was not critical before the harvest season.
II. The economic condition could not have improved without a good harvest season.
III. The economic condition was expected to improve after a good harvest season.
If a relation is in third normal form, it does not need to be in second normal form.
Which of the following statements is/are FALSE? (i) By definition a relation schema is in first normal form. (ii) A relation schema which is in third normal form is definitely in BCNF.