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SUM() function
- Use the SUM() function to calculate the sum of values. Use the DISTINCT option to calculate the sum of distinct values. Use the ALL option to calculate the sum of all values including duplicates.
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What is SQL sum function?
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How to sum two values from different columns in SQL Server?
May 31, 2016 · SUM is used to sum the value in a column for multiple rows. You can just add your columns together: select tblExportVertexCompliance.TotalDaysOnIncivek + tblExportVertexCompliance.IncivekDaysOtherSource AS [Total Days on Incivek]
- () with One Column. If you want to sum values stored in one column, use SUM() with that column’s name as the argument. Look at the example below
- () with an Expression. Next, we’ll consider an example that uses an expression as the SUM() argument. This is the query: SELECT SUM(quantity*price) AS total_value FROM product;
- () with GROUP BY. Usually, you use the SUM function with the GROUP BY clause. With GROUP BY, the summed values are computed for a group of rows.
- () with DISTINCT. The SQL SUM() function can also sum up unique (i.e. non-repeating) values only. To do this, use the SUM function with the DISTINCT keyword in the argument.
The SQL SUM () Function. The SUM() function returns the total sum of a numeric column. Example. Return the sum of all Quantity fields in the OrderDetails table: SELECT SUM (Quantity) FROM OrderDetails; Try it Yourself » Syntax. SELECT SUM(column_name) FROM table_name. WHERE condition; . Demo Database.
- Use case with ALL & DISTINCT. Let’s start with the first use case in which we will understand two arguments ALL and DISTINCT and their output. I have mentioned above that argument ALL is the default argument and will be used by SQL Server in case you will not specify any of these arguments.
- Use case with GROUP BY, HAVING, and ORDER BY statement. Suppose you got a requirement to return a total number of units sold along with their total values, then we can use the SQL SUM function on two columns.
- Use case with other system functions like MIN, MAX, AVG. The SQL SUM() function can also be used along with other aggregate functions like MAX, AVG, & MIN.
- Use case with Expressions. The SQL SUM() function can also be used with arithmetic expressions. Suppose we have two columns Price and Quantity. The price column is storing the per unit cost of each product and the Quantity column is storing the total units sold.
- Basic Usage of SUM() and GROUP BY in SQL. Let’s look at an example of how the SUM() function works together with GROUP BY: SELECT country, SUM(quantity) AS total_quantity FROM orders GROUP BY country;
- Computing 2 SUMs and Grouping By 2 Columns. In the previous example, we saw how to use SUM() and GROUP BY to group a set of data by the column country and get the total quantity for each country separately.
- Using a WHERE Condition with SUM and GROUP BY. You can use a WHERE condition in your query with SUM() and GROUP BY. In this case, the database engine alters the procedure seen above to return the results of the query.
- Using the ORDER BY Clause With SUM and GROUP BY. If we also add an ORDER BY clause to the query we build with SUM() and GROUP BY, then the database engine will have to do a little more work.
Jun 9, 2023 · The SUM function is used to add up the numbers in a specified column and return the total. It’s part of the SQL Standard so it’s available in all major databases (including Oracle, SQL Server, MySQL, and PostgreSQL).
Dec 8, 2020 · In SQL, the SUM() function is an aggregate function that returns the sum of all values in a given expression. It can also be used to return the sum of all distinct (unique) values in an expression. The expression must be numeric (it cannot be character string, bit string, or datetime). Below are some basic examples to demonstrate how it works.
