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Exam 1z0-071 topic 1 question 167 discussion

Actual exam question from Oracle's 1z0-071
Question #: 167
Topic #: 1
[All 1z0-071 Questions]

Examine this statement which returns the name of each employee and their manager:



You want to extend the query to include employees with no manager. What must you add before JOIN to do this?

  • A. CROSS
  • B. RIGHT OUTER
  • C. LEFT OUTER
  • D. FULL OUTER
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Suggested Answer: C 🗳️
by kay000001 at Oct. 18, 2024, 11:16 a.m.

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Thameur01
2 months, 3 weeks ago
Selected Answer: C
• LEFT OUTER JOIN: o Returns all rows from the employees table, regardless of whether there is a matching row in the managers table. o For employees without a manager, the columns from the managers table will contain NULL.
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kay000001
6 months ago
Selected Answer: C
C is correct. The manager table needs to be fully preserved.
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Thameur01
2 months, 3 weeks ago
the emp table is the left table and it the one wich needs to be preserved: The placement of the employees table on the left and the managers table on the right in the query is determined by the structure of the JOIN clause and the logic of the query.
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