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Questions and Answers
What is the purpose of importing from Excel in Power Query Editor?
What is the purpose of importing from Excel in Power Query Editor?
- To remove duplicates
- To load data into Powerbi initially (correct)
- To append tables
- To transform data types
What is the format of the data in the Logged column?
What is the format of the data in the Logged column?
- 2018-12-31 at 08:59 (correct)
- DD-MM-YYYY HH:MM
- YYYY-MM-DD HH:MM
- MM-DD-YYYY HH:MM
What is the purpose of appending tables in Power Query Editor?
What is the purpose of appending tables in Power Query Editor?
- To remove duplicates
- To combine tables (correct)
- To transform data types
- To load data into Powerbi
What is the purpose of removing duplicates in Power Query Editor?
What is the purpose of removing duplicates in Power Query Editor?
How can you analyze the complaints by the logged date and use a built-in date hierarchy?
How can you analyze the complaints by the logged date and use a built-in date hierarchy?
What happens when you split the Logged column by using 'at' as the delimiter?
What happens when you split the Logged column by using 'at' as the delimiter?
Why is it necessary to import data from Excel in Power Query Editor?
Why is it necessary to import data from Excel in Power Query Editor?
What is the purpose of Power Query Editor?
What is the purpose of Power Query Editor?
What is the purpose of dropping the Subject and Body from the email report?
What is the purpose of dropping the Subject and Body from the email report?
What should you configure in the table to make it available as an organizational data type in Microsoft Excel?
What should you configure in the table to make it available as an organizational data type in Microsoft Excel?
What is the purpose of the Key column field in the Power BI table?
What is the purpose of the Key column field in the Power BI table?
Where can users find data from featured tables in Power BI datasets in Excel?
Where can users find data from featured tables in Power BI datasets in Excel?
What is the purpose of using row-level security (RLS) in the Power BI model?
What is the purpose of using row-level security (RLS) in the Power BI model?
How many RLS roles should be created to meet the requirements?
How many RLS roles should be created to meet the requirements?
What is the benefit of using the USERNAME DAX function in the RLS role?
What is the benefit of using the USERNAME DAX function in the RLS role?
What is the main goal of the RLS implementation in this scenario?
What is the main goal of the RLS implementation in this scenario?
What is the primary purpose of Column Distribution in Power BI?
What is the primary purpose of Column Distribution in Power BI?
What is the difference between distinct values and unique values in Column Distribution?
What is the difference between distinct values and unique values in Column Distribution?
What is the purpose of merging queries in Power BI?
What is the purpose of merging queries in Power BI?
When should you append queries in Power BI?
When should you append queries in Power BI?
What should you do on the Categories query to create a Power BI dataset with a single table named Product?
What should you do on the Categories query to create a Power BI dataset with a single table named Product?
What is the benefit of breaking down data transformations into multiple queries in Power BI?
What is the benefit of breaking down data transformations into multiple queries in Power BI?
Why should you disable the query load in Power BI?
Why should you disable the query load in Power BI?
What is the result of merging two queries in Power BI?
What is the result of merging two queries in Power BI?
What is the purpose of configuring an on-premises data gateway in Power BI?
What is the purpose of configuring an on-premises data gateway in Power BI?
What is the final step in ensuring that the Power BI service can connect to an on-premises Microsoft SQL Server database and refresh the dataset?
What is the final step in ensuring that the Power BI service can connect to an on-premises Microsoft SQL Server database and refresh the dataset?
What type of connector should you choose to connect to a Cassandra database in Power BI Desktop?
What type of connector should you choose to connect to a Cassandra database in Power BI Desktop?
What is the benefit of using the ODBC connector in Power BI Desktop?
What is the benefit of using the ODBC connector in Power BI Desktop?
What is the purpose of adding a data source in Power BI?
What is the purpose of adding a data source in Power BI?
What is the first step in ensuring that the Power BI service can connect to an on-premises Microsoft SQL Server database and refresh the dataset?
What is the first step in ensuring that the Power BI service can connect to an on-premises Microsoft SQL Server database and refresh the dataset?
What is the purpose of adding the dataset owner to the data source in Power BI?
What is the purpose of adding the dataset owner to the data source in Power BI?
What is the result of not configuring an on-premises data gateway in Power BI?
What is the result of not configuring an on-premises data gateway in Power BI?
What is the main purpose of importing data in Power BI?
What is the main purpose of importing data in Power BI?
What is the advantage of using Direct Query for the dataset?
What is the advantage of using Direct Query for the dataset?
How do you combine two tables with a common column in Power Query Editor?
How do you combine two tables with a common column in Power Query Editor?
What happens when you use Direct Query for the dataset?
What happens when you use Direct Query for the dataset?
What should you do to analyze the complaints by the logged date and use a built-in date hierarchy?
What should you do to analyze the complaints by the logged date and use a built-in date hierarchy?
What is the purpose of using Power Query to import data?
What is the purpose of using Power Query to import data?
What is the result of using Merge queries in Power Query Editor?
What is the result of using Merge queries in Power Query Editor?
What is the format of the data in the Logged column?
What is the format of the data in the Logged column?
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Study Notes
Power BI Query Editor
- Importing from Excel requires the data to be loaded to Power BI initially.
- To combine products from two tables into one table with no duplicate values, perform the following actions in sequence:
- Import From Excel
- Append Table 2 to Table 1
- Remove Duplicates from the appended table
Date and Time Analysis
- To analyze complaints by logged date and use a built-in date hierarchy, split the Logged column by using "at" as the delimiter.
- This allows separation of the date and time into separate columns.
Combining Queries
- There are two primary ways of combining queries: merging and appending.
- Merging is used when you have one or more columns that you'd like to add to another query.
- Appending is used when you have additional rows of data that you'd like to add to an existing query.
- To create a Power BI dataset that contains a single table named Product, merge the queries and disable the query load.
Data Refresh
- To ensure that the Power BI service can connect to an on-premises Microsoft SQL Server database and refresh the dataset, perform the following actions in sequence:
- Configure an on-premises data gateway.
- Add a data source.
- Add the dataset owner to the data source.
- Configure a scheduled refresh.
Data Connectors
- If there is no specific connector for a Cassandra database, use an ODBC connector.
- ODBC allows you to connect to data sources that aren't identified in the Get Data lists.
- You can specify a Data Source Name (DSN) or a connection string to connect to the ODBC driver.
Table Relationships
- To combine tables into a single query that contains the unique columns of each table, select Merge queries in Power Query Editor.
- Merge combines columns, while Append combines rows.
Organizational Data Types
- To make a table available as an organizational data type in Microsoft Excel, configure the properties of the table as follows:
- Set the row label to Name.
- Set the key column to ID.
- Set the organizational data type to Yes.
Row-Level Security (RLS)
- To meet the requirements of row-level security (RLS), perform the following actions:
- Create a single role that filters Country[Manager_Email] by using the USERNAME DAX function.
- (Additional action not specified)
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