📅  最后修改于: 2023-12-03 15:33:18.777000             🧑  作者: Mango
In Oracle SQL, the AVG function is used to calculate the average value of a given set of numeric data. It takes a column name as input and returns the average value of that column.
The syntax for using the AVG function in Oracle SQL is as follows:
SELECT AVG(column_name) FROM table_name;
Where column_name
represents the name of the column that contains the numeric data and table_name
represents the name of the table that contains the data.
Here's an example of using the AVG function in Oracle SQL.
SELECT AVG(salary) FROM employees;
This query will return the average salary of all employees in the employees
table.
The output of the above query will be a single value representing the average salary of all employees.
The AVG function in Oracle SQL is a useful tool for calculating average values of numeric data in a table. By using this function, programmers can quickly and easily obtain important statistical information about their data.