1 row in set (0.03 sec) 1. 2. 3. 4. 5. 6. 7. 8. 您可以使用GROUP BY子句取平均各种记录集。下面的示例将平均获取与一个人相关的所有记录,并且每个人的平均输入页面数将为平均。 SQL> SELECT name, AVG(daily_typing_pages) -> FROM employee_tbl GROUP BY name; +---+---+ | name | AV...
In this article, we're going to explain how to get accurate average value in SQL like the average value in DAX.ScenarioIn Power BI, we are using a DAX AVERAGE function in a measure as the following:Copy Average Rate = AVERAGE(customers[rate]) ...
You will learn more about the GROUP BY clause later in this tutorial.Exercise? What does the SQL AVG() function do? Returns the sum of a numeric column Returns the average value of a numeric column Counts the number of rows in a table Finds the maximum value in a numeric columnSubmit ...
To list all records with a higher price than average, we can use the AVG() function in a sub query:Example Return all products with a higher price than the average price: SELECT * FROM ProductsWHERE price > (SELECT AVG(price) FROM Products); Try it Yourself » ...
AVG() 函數 (SQL AVG() Function) AVG() 函數用來計算一數值欄位的平均值。 AVG() 語法 (SQL AVG() Syntax) SELECT AVG(column_name) FROM table_name; AVG() 函數查詢用法 (Example) 假設我們想從下面的 students 資料表中查詢學生的平均身高: S_IdNameHeight 1 張一 170 2 王二 176 3 李三 173...
The SQL AVG function calculates the average of a series of values that you provide to it. Most of the time, this will be a particular column that you specify, so the average will be all of the values in that column. Just like theMINandMAXfunctions, the AVG function is a SQL standard...
SQL AVG() function: SQL AVG function calculates the average value of a column of numeric type. The SQL AVG() function calculates NON NULL values. The SQL WHERE clause is used along with SQL AVG() function to get the result in a specific format based on o
The AVG() FunctionThe AVG() function returns the average value of a numeric column.SQL AVG() SyntaxSELECT AVG(column_name) FROM table_nameDemo DatabaseIn this tutorial we will use the well-known Northwind sample database.Below is a selection from the "Products" table:...
Returns the average of the values in a group. Null values are ignored. May be followed by the OVER clause.Transact-SQL Syntax ConventionsSyntaxCopy AVG ( [ ALL | DISTINCT ] expression ) ArgumentsALL Applies the aggregate function to all values. ALL is the default. DISTINCT Specifies that ...
SQL AVG Function Summary: in this tutorial, you will learn how to use the SQL AVG aggregate function to calculate the average of a set of numbers. Introduction to SQL AVG function The AVG function calculates the average of the values. To use the AVG function, you use the following syntax...