To calculate the average in Power BI, you can use the AVERAGE function. This function calculates the arithmetic mean of a column or a set of values. Example: Let’s say you have a dataset with a column named “Sales” and you want to calculate the average sales amount. Sales 100 150 200 75 Average Sales … Read more

To remove a value from an enum type in PostgreSQL, you can follow these steps: Connect to your PostgreSQL database using a client tool such as pgAdmin or psql. Assuming we have an existing enum type called “color” with values ‘red’, ‘green’, and ‘blue’, you can use the following SQL statement to remove a value: … Read more

To calculate attrition rate in Power BI, follow these steps: 1. Import your data into Power BI and load it into the data model. Ensure that your data includes columns for the employee join date and exit date. 2. Create a new measure by clicking on “New Measure” in the Modeling tab. Use the DAX … Read more

Query: PostgreSQL position second occurrence In PostgreSQL, you can use the position function to find the position of a substring within a string. However, the position function only returns the position of the first occurrence. To find the position of the second occurrence, you can use the strpos function in combination with the substring function. … Read more

To calculate age in Power BI, you can use the DATEDIFF function along with the DATE function. The DATEDIFF function calculates the difference between two dates, while the DATE function creates a date value from given year, month, and day values. Here’s an example of how you can calculate age: DateDiff = DATEDIFF( ‘TableName'[BirthDate], DATE(YEAR(NOW()), … Read more

To check if a key exists in a JSONB column in PostgreSQL, you can use the JSONB operators and functions provided by PostgreSQL. Below is an example of how you can perform this check. Let’s say you have a table called “employees” with a JSONB column named “data”, which stores employee information in JSON format. … Read more

How to Buy Power BI Pro License Power BI Pro is a premium version of Power BI that provides additional features and capabilities for businesses and individuals. To purchase a Power BI Pro license, you can follow these steps: Go to the official Power BI website. Click on the “Pricing” tab in the top menu. … Read more

When inserting data into a PostgreSQL table without explicitly specifying the value for the ID column, you can use the INSERT statement. Here is an example: CREATE TABLE example ( id SERIAL PRIMARY KEY, name VARCHAR(100) ); INSERT INTO example (name) VALUES (‘John Doe’); In this example, a table named “example” is created with two … Read more

The PostgreSQL function can be used to define a custom function that returns an array. Here’s an example: CREATE OR REPLACE FUNCTION get_numbers() RETURNS INTEGER[] AS $$ DECLARE numbers INTEGER[] := ARRAY[1, 2, 3, 4, 5]; BEGIN RETURN numbers; END; $$ LANGUAGE plpgsql; In this example, we define a function called “get_numbers” that returns an … Read more

To buy Power BI Pro, you can follow these steps: Go to the Power BI website. Click on the “Pricing” tab in the top navigation menu. Scroll down to the “Power BI Pro” section and click on the “Buy now” button. You will be redirected to the Microsoft Store where you can choose a payment … Read more