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A sequence has the following definition: CREATE SEQUENCE seq1 CACHE 10 CYCLE; Select the value that is returned by executing the following SQL. SELECT nextval('seq1');
Suggested Answer: A, C
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31 comments · newest first
CO
Colette
10 months ago
CYCLE means it goes back to the start, so B is right.
CA
Callie
11 months ago
I thought it would return 0, but I guess not!
HI
Hildred
11 months ago
Wait, does it really cycle back to 1 after reaching 10?
LE
Leonora
11 months ago
Definitely going with option B, that's the first value.
BR
Brynn
11 months ago
The sequence starts at 1 by default.
ST
Stephaine
12 months ago
I’m a bit confused about the CACHE option. Does it affect the first value? I might lean towards C, but I’m not certain.
TI
Tiera
12 months ago
I practiced a similar question, and I believe the first value returned is always 1. So, I would go with B.
TH
Therese
12 months ago
I'm not entirely sure, but I remember something about sequences cycling back to the start. Could it be D?
MA
Mammie
1 year ago
I think the sequence starts at 1, so maybe the answer is B.
LA
Laticia
1 year ago
I've got this one! The CYCLE option means the sequence will reset to 1 after reaching the maximum value, so the correct answer is C - 10.
CE
Cecil
1 year ago
I'm a little confused by the CYCLE option. Does that mean the sequence will just keep going indefinitely, or will it reset to 1 after reaching some maximum value? I'll have to double-check the documentation on that.
ZO
Zona
1 year ago
Okay, let me break this down step-by-step. The sequence is defined to cache 10 values, and it's set to cycle. So the first 10 calls to nextval() should return 1 through 10, and then it should start over at 1.
JE
Jesus
1 year ago
Hmm, I'm a bit unsure about how the CACHE and CYCLE options work in this context. I'll need to think it through carefully.
TA
Tamar
1 year ago
This looks like a straightforward sequence question. I think I can handle this one.
LA
Lajuana
1 year ago
This question is a real sequence-buster! I'm tempted to say E) -10, just to see the look on the examiner's face.
CI
Ciara
1 year ago
I'm going to go with A) 0. Why not? Sequences can be a bit unpredictable sometimes, so 0 seems like a good answer to throw off the competition.
EL
Elly
1 year ago
Hmm, this is tricky. I'm leaning towards C) 10, because the CACHE 10 parameter means the sequence will pre-allocate 10 values at a time.
NI
Nickolas
1 year ago
I'm not sure, but I'll go with A) 0 as my guess.
ER
Eric
1 year ago
I agree with C) 10, the CACHE parameter does pre-allocate values.
AN
Anissa
1 year ago
I believe it's D) 11, since the sequence will cycle back to the beginning after reaching the maximum value.
NY
Nydia
1 year ago
I think it's B) 1, because the sequence starts at 1 by default.
CR
Crissy
1 year ago
My guess is D) 11. Since the sequence is set to CYCLE, it will start over from the beginning once it reaches the maximum value, so the next call should return 11.
AN
Annette
1 year ago
I agree with D) 11. The sequence will cycle back to the beginning after reaching the maximum value.
CL
Claudio
1 year ago
I believe it's C) 10. Since the cache is set to 10, it will return the next value in the cache.
BR
Brittani
1 year ago
I think it's B) 1. The sequence starts at 0 and increments by 1 each time.
LA
Lacresha
1 year ago
I think the correct answer is B) 1. The CACHE 10 parameter means that the sequence will pre-allocate 10 values, so the first call to nextval() should return 1.
DA
Daren
1 year ago
I think it might be D) 11 because of the CYCLE option.
DA
Daren
1 year ago
I agree, the correct answer is B) 1.
JU
Julene
2 years ago
Hmm, that makes sense too. I guess we'll have to wait and see what the correct answer is.
JE
Jeanice
2 years ago
I disagree, I believe the answer is B) 1 because the sequence starts at 0 and the first value returned is 1.
JU
Julene
2 years ago
I think the answer is A) 0 because the sequence starts at 0 and cycles after reaching the maximum value.