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WGU C170 SQL Data Management Exam Questions Terms with Accurate Answers 2024/2025 R213,83   Add to cart

Exam (elaborations)

WGU C170 SQL Data Management Exam Questions Terms with Accurate Answers 2024/2025

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  • Course
  • WGU 170
  • Institution
  • WGU 170

WGU C170 SQL Data Management Exam Questions Terms with Accurate Answers 2024/2025 cross join - correct answer cartesian product of T1 and T2 USING - correct answer returns only rows with matching values in column indicated ON - correct answer returns rows that meet specified join condition...

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  • August 30, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • WGU 170
  • WGU 170
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WGU C170 SQL Data Management Exam
Questions Terms with Accurate Answers
2024/2025

cross join - correct answer cartesian product of T1 and T2


USING - correct answer returns only rows with matching values in column indicated


ON - correct answer returns rows that meet specified join condition


subquery can return: - correct answer single value (1 column, 1 row)


list of values (1 column, multiple rows)


virtual table (multicolumn, multirow)


union - correct answer combines 2 similar tables, returns distinct rows


union all - correct answer combines 2 tables, returns ALL rows


intersect - correct answer returns rows that both query returns


minus - correct answer returns unique rows of only FIRST query


video and audio files - correct answer blob
mediumblob
longblob

, binary files


SQL performance tuning - correct answer CLIENT side


fastest way to get SQL query to return correct answer


DBMS performance tuning - correct answer SERVER side


fastest way to responding clients requests


table scan - correct answer reads table sequentially


slowest


table access - correct answer row ID


fastest


5 things that causes bottleneck - correct answer RAM
CPU
hard disk
network
application mode


hash index - correct answer index based on ordered list of hash values
fast and simple


LNAME="Scott" and FNAME="Shannon"

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