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Merge pull request #5377 from olawuwo/patch-1

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Add SQL identifier to enable highlighting in snippet
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dsh
2024-05-10 12:31:10 +01:00
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commit ab34fe725c
1 changed files with 2 additions and 2 deletions
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src/data/roadmaps/sql/content/104-aggregate-queries/103-avg.md
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@@ -3,7 +3,7 @@
The `AVG()` function in SQL is an aggregate function that returns the average value of a numeric column. It calculates the sum of values in a column and then divides it by the count of those values. The `AVG()` function in SQL is an aggregate function that returns the average value of a numeric column. It calculates the sum of values in a column and then divides it by the count of those values.
Syntax: Syntax:
``` ```sql
SELECT AVG(column_name) SELECT AVG(column_name)
FROM table_name; FROM table_name;
``` ```
@@ -37,4 +37,4 @@ GROUP BY CustomerID;
``` ```
It will calculate the average quantity for each customer and display the result along with the associated customer's ID. It will calculate the average quantity for each customer and display the result along with the associated customer's ID.
> Note: The `AVG()` function works only with numeric data types (`INT`, `FLOAT`, `DECIMAL`, etc.). It will return an error if used with non-numeric data types. > Note: The `AVG()` function works only with numeric data types (`INT`, `FLOAT`, `DECIMAL`, etc.). It will return an error if used with non-numeric data types.