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Exam TDS-C01 topic 5 question 118 discussion

Actual exam question from Tableau's TDS-C01
Question #: 118
Topic #: 5
[All TDS-C01 Questions]

What are two requirements to combine two tables by using a union? (Choose two.)

  • A. Related fields must have matching data types.
  • B. Related fields must have different names.
  • C. The tables must come from different connections.
  • D. The tables must have the same number of fields.
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Suggested Answer: AD 🗳️
by mel321 at June 19, 2024, 11:16 p.m.

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THC1138
5 months ago
Selected Answer: AD
Technically D is not correct. You can have a different number of fields, the unmatched fields will have lots of nulls in them. From their documentation: "For best results, the tables that you combine using a union must have the same structure. That is, each table must have the same number of fields, and related fields must have matching field names and data types."
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ItsMompo
9 months ago
Selected Answer: AD
A&D is correct
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