what is row measure and column measure in cache with digram, code and example?
  In a cache with diagrams, row measure and column measure are two different metrics used to evaluate the cache's performance.

Row Measure:
The row measure is the average number of requests made to the cache for each row of the main memory. In other words, it measures how many times the cache had to be accessed to retrieve a single row of data from the main memory.

Formula: Row Measure = (Number of Cache Hits for Row Accesses) / (Number of Row Accesses)

Example:
Suppose we have a cache with a size of 16 MB, and the main memory contains 100 rows of 100 bytes each. If the cache hits for row accesses are 80%, the row measure would be:

Row Measure = (80% of 100) / (100 rows \* 100 bytes/row) = 0.8

Column Measure:
The column measure is the average number of requests made to the cache for each column of the main memory. In other words, it measures how many times the cache had to be accessed to retrieve a single column of data from the main memory.

Formula: Column Measure = (Number of Cache Hits for Column Accesses) / (Number of Column Accesses)

Example:
Suppose we have the same cache and main
what is row measure and column measure in cache with digram, code and example?

In Power BI, SSAS Tabular, and other similar data modeling tools, the terms "Row Measure" and "Column Measure" are used to describe the type of calculations performed on data in a table model. These measures are an essential part of the model and are used to perform aggregations and calculations on the data.

In a table model, the data is organized into tables, with columns representing attributes or dimensions, and rows representing individual records or facts. Measures are calculated values that are based on the data in the table.

1. Row Measure: A Row Measure is a measure that is calculated for each row in a table. It is used to compare individual records or to perform calculations that are specific to each record. For example, a Row Measure could be used to calculate the total sales for each customer or the average salary for each employee. In Power BI, you can create a Row Measure by creating a calculated column and setting the aggregation type to "Don't Summarize" or "First" or "Last".

Here's an example of a Row Measure in Power BI:

Assuming you have a table called "Sales" with columns "CustomerID", "SalesAmount", and "OrderDate". To create a Row Measure that calculates the total sales for each customer, you can create a calculated column as follows:

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