Which of the following statements describes the impact of retaining duplicated values in a dataset? Select all that apply:1 pointThey can skew analytical results and lead to incorrect insights.They increase the storage requirements and slow down query performance. They create difficulty in establishing relationships between data tables.

You are having a conversation with a co-worker about the advantages of cleaning data at the source. What benefits can this practice offer? Select all that apply.1 pointIt reduces the likelihood of inconsistencies and errors in the data.It allows for data transformation within the Microsoft Power BI environment.It facilitates duplicate data entries in the analysis.It ensures that future analyses have a clean and consistent foundation.

do you avoid having duplicate data in a database?

Which of these about a set is not true?Mutable data typeAllows duplicate valuesData type with unordered valuesImmutable data type

Which statement is true?*1 pointData entry should be more tediousInformation will be more efficiently retrievedInformation retrieval will be more tediousThere will be no errors in the data store

Which of the following statements are TRUE about DISTINCT keyword? [Choose any TWO]DISTINCT keyword can be used in SELECT and WHERE clausesDISTINCT removes duplicates based on column immediately following DISTINCTDISTINCT removes duplicates based on all the columns in the SELECT clauseUsage of DISTINCT should be avoided as far as possible due to performance issues