Power BI Developer
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Post No. #873

Data analyst's responsibilities :

- Data Collection and Cleaning

- Data Analysis

- Data Visualization

- Reporting

- Collaboration

- Identifying Trends
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Post No. #874

Power Query advantages in Power BI:

- Data Import

- Data Transformation

- Automation

- Integration

- Efficiency

- Customizable
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Post No. #875

Building blocks of Power BI :

- Datasets

- Visualization

- Reports

- Dashboards

- Tiles
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Post No. #876

Context vs Function :

- A row context applies to a particular row in a table when a formula’s function affects the row. In contrast, filter context applies when you apply several filters to a calculation.

- Functions refer to values or β€œarguments” used in a certain order to carry out a computation. There are a few different categories such as statistical, date or time, and logical.
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Post No. #877

Single Direction vs Both Direction :

Filters flow in one direction, typically from the "one" side of a relationship to the "many" side.
Useful for straightforward, hierarchical models.

Filters flow in both directions between related tables.
Useful for complex models where tables need to filter each other, such as many-to-many relationships
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Post No. #878

Selection Pane in Power BI :

Selection Pane helps you to take control over visuals which require to be displayed and which should not be displayed. It allows you to combine multiple visual pages in the group.
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Post No. #879

What is Query Optimization?

- Minimize the number of query steps in Power Query.

- Apply filters early in the query process.

- Ensure transformations are pushed back to the data source using query folding.
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Post No. #880

What is hierarchy in Power BI?

A hierarchy is used to present data in a structured and ordered manner. It is particularly useful when you want to drill down into data at various levels, such as year, month, and day.

Hierarchies make your data model easier to understand and enhance the interactivity of reports.
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Post No. #881

Data analyst responsibilities:

- Data Collection and Cleaning

- Data Analysis

- Data Visualization

- Reporting

- Collaboration

- Identifying Trends

- Data Governance
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Post No. #882

Gateway :

- Install a gateway in your system.

- Add users to the gateway who need to access data from on-premises data sources.

- Connect to on-premises data sources.Users can use data from on-premises data sources for data analysis and report generation.
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Post No. #883

Relationships in Power BI :

Users can manually define relationships between tables using primary and foreign keys.
With the autodetect feature, When enabled, this inherent feature of Power BI detects relationships between tables and creates them automatically.
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Post No. #884

Power View in Power BI :

Power View is a technology for data visualization that allows users to create interactive graphs, charts, maps, and other visualizations that help bring data to life.
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Post No. #885

To hide and unhide a specific report in power bi, you have to go to selection Pane in the menu bar, and press hides/unhide toggle button to bookmark.
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Post No. #886

Data view helps you inspect, explore, and understand data in your Power BI Desktop model. It's different from how you view tables, columns, and data in the Power Query Editor. With Data view, you're looking at your data after it has been loaded into the model.

Model view shows all of the tables, columns, and relationships in your model. This view can be especially helpful when your model has complex relationships between many tables.

Power BI Desktop includes a Report view, where you can create any number of report pages with visualizations.
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Post No. #887

Responsibilities of data analyst :

- Focuses on analyzing data to provide actionable insights.
- Works with data to identify trends, patterns, and anomalies.
- Uses statistical tools and software to process and visualize data.
- Provides reports and recommendations based on data analysis.
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Post No. #888

Data lineage in Power BI :

Data lineage is the process of tracking the flow of data from its source to its destination, including all the transformations and relationships along the way.
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Post No. #889

Custom Column in Power BI :

In Power BI, a Custom Column allows you to create new columns in your dataset using custom formulas in the Power Query Editor.
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Post No. #890

Dashboards in Power BI :

Power BI dashboards are single-page, interactive visualizations that provide an at-a-glance overview of key insights from your data. They are often used to summarize data, track KPIs, and monitor business performance.
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Post No. #891

How to do DAX optimization in Power BI :

Simplify DAX calculations and avoid resource-intensive functions.

Use variables in DAX measures for better performance.

Prefer measures over calculated columns to save memory.
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Post No. #892

What are Power BI Mobile Apps?

These apps are available for iOS, Android, and Windows devices. These allow users to view and interact with their Power BI reports and dashboards on the go. It supports offline access, notifications, and geolocation features.
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