Q: A data analyst uses a changelog while cleaning data. What process does a changelog support? or Q: When cleansing data, a data analyst consults a changelog. Which procedures is a changelog supporting? Illumination Examination Disclosure Documentation Explanation: During data cleansing, the process of version control might benefit from the use of a changelog. It assists in documenting and maintaining a…
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Fill in the blank: As a data analyst, you should always create a _____ to track your additions, deletions, errors, and changes to a query.
Q: Fill in the blank: As a data analyst, you should always create a _____ to track your additions, deletions, errors, and changes to a query. or Q: Complete the blank: You should always make a _____ as a data analyst to keep track of any additions, deletions, mistakes, and modifications you make to a query. notepad database changelog spreadsheet…
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Which of the following functions automatically remove extra spaces when cleaning data?
Q: Which of the following functions automatically remove extra spaces when cleaning data? or Q: When cleaning data, which of the following functions automatically eliminates superfluous spaces? SNIP REMOVE TRIM CLEAR Explanation: When data is cleaned, it is usual practice to utilize the TRIM function to eliminate superfluous spaces in a data set automatically. It is a useful tool that may…
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What tool can a data analyst use to figure out how many identical errors occur in a dataset?
Q: What tool can a data analyst use to figure out how many identical errors occur in a dataset? or Q: How many identical mistakes are there in a dataset? What tool can a data analyst use to determine this? CASE COUNTA CONFIRM COUNT Explanation: A data analyst may make use of applications such as spreadsheet software (such as Excel) or…
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Fill in the blank: A data analyst uses the CASE statement to consider one or more _____, then returns a value.
Q: Fill in the blank: A data analyst uses the CASE statement to consider one or more _____, then returns a value. or Q: Complete the blank: After considering one or more cases using the CASE statement, a data analyst returns a value. additions conditions identifications changes Explanation: The CASE statement is used by a data analyst to take into consideration…
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What is the process of tracking changes, additions, deletions, and errors during data cleaning?
Q: What is the process of tracking changes, additions, deletions, and errors during data cleaning? or Q: How are additions, deletions, modifications, and mistakes monitored throughout the data cleaning process? Recording Observation Cataloging Documentation Explanation: Data auditing or data lineage refers to the act of tracing the history of a set of data, including its modifications, additions, removals, and mistakes, while…
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Reviewing version history is an effective way to view a changelog in SQL.
Q: Reviewing version history is an effective way to view a changelog in SQL. or Q: Examining the version history is a useful method for seeing a changelog in SQL. True False Explanation: Sure enough! The history of versions in SQL may be reviewed to provide a clear understanding of the changes that have been made over time, which can serve…
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Fill in the blank: While cleaning data, a data analyst can use a changelog to keep a chronological list of changes they make. They can refer to it during the _____ period if there are errors or questions.
Q: Fill in the blank: While cleaning data, a data analyst can use a changelog to keep a chronological list of changes they make. They can refer to it during the _____ period if there are errors or questions. or Q: Complete the blank: A changelog is a useful tool for data analysts to maintain a track of all the…
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In what step of the data-cleaning process do you find mistakes before you begin analyzing the data?
Q: In what step of the data-cleaning process do you find mistakes before you begin analyzing the data? or Q: What stage of the data cleaning procedure do you check for errors before starting the data analysis? Confirming Publishing Verifying Processing Explanation: Part of the process of validating the data involves looking for errors before commencing the analysis of the data.…
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During the data cleaning process you find a significant amount of data that contains irrelevant spaces. Which function do you use to remove leading, trailing, or repeated spaces?
Q: During the data cleaning process you find a significant amount of data that contains irrelevant spaces. Which function do you use to remove leading, trailing, or repeated spaces? or Q: You discover a sizable volume of data with unnecessary gaps while cleansing the data. To eliminate trailing, leading, or repetitive spaces, which function do you use? CUT DELETE TRIM…
