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Exam 1z0-071 topic 1 question 33 discussion

Actual exam question from Oracle's 1z0-071
Question #: 33
Topic #: 1
[All 1z0-071 Questions]

Examine this list of requirements for a sequence:
1. Name: EMP_SEQ
2. First value returned: 1
3. Duplicates are never permitted.
4. Provide values to be inserted into the EMPLOYEES.EMPLOYEE_ID column.
5. Reduce the chances of gaps in the values.
Which two statements will satisfy these requirements? (Choose two.)

  • A. CREATE SEQUENCE emp_seq START WITH 1 INCREMENT BY 1 CYCLE;
  • B. CREATE SEQUENCE emp_seq START WITH 1 INCREMENT BY 1 CACHE;
  • C. CREATE SEQUENCE emp_seq;
  • D. CREATE SEQUENCE emp_seq START WITH 1 INCREMENT BY 1 NOCACHE;
  • E. CREATE SEQUENCE emp_seq NOCACHE;
  • F. CREATE SEQUENCE emp_seq START WITH 1 CACHE;
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Suggested Answer: DE 🗳️
by karols32 at Sept. 19, 2022, 6:31 p.m.

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826cb95
2 weeks, 4 days ago
Selected Answer: DE
Reduce chances of gaps: so NOCACHE is preferred, since cached sequences can create gaps if the database shuts down before cache is used.
upvoted 1 times
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dexdinh91
9 months, 3 weeks ago
Selected Answer: DE
NO CACHE
upvoted 2 times
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mikom80
1 year, 1 month ago
if there is cache option sequence get some numbers (for example 10). if oracle used some of this (less than 10) and restart instance occurs, then will be gap, because oracle will cache next 10 numbers.
upvoted 2 times
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karols32
1 year, 1 month ago
How reduce the chances of gaps in the values by syntax?
upvoted 1 times
Viviana3184
10 months, 3 weeks ago
using NOCACHE
upvoted 1 times
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