All you need to do is use the multiplication operator (*) between the two multiplicand columns ( price * quantity ) in a simple SELECT query. You can give this result an alias with the AS keyword; in our example, we gave the multiplication column an alias of total_price .

## Is there a multiplication function in SQL?

The **SQL multiply ( * ) operator** is used to multiply two or more expressions or numbers.

## Can you do math in SQL?

Does SQL Server perform basic mathematical calculations? **Yes** – SQL Server can perform basic addition, subtraction, multiplication and division. … In addition, SQL Server can calculate SUM, COUNT, AVG, etc. For these type of calculations, check out SQL Server T-SQL Aggregate Functions.

## How do I multiply a column by value in SQL?

All you need to do is use **the multiplication operator (*) between** the two multiplicand columns ( price * quantity ) in a simple SELECT query. You can give this result an alias with the AS keyword; in our example, we gave the multiplication column an alias of total_price .

## How do I write a SQL join?

The join is done by **the JOIN operator**. In the FROM clause, the name of the first table ( product ) is followed by a JOIN keyword then by the name of the second table ( category ). This is then followed by the keyword ON and by the condition for joining the rows from the different tables.

## How do you add a column value in SQL?

The basic syntax for adding a new column is as follows: **ALTER TABLE table_name ADD column_name data_type constraints**; The SQL ALTER TABLE add column statement we have written above takes four arguments. First, we specify the name of our table.

## How do I do an if statement in SQL?

The IF statement is logically equivalent to a CASE statements with a **searched-case-statement-when** clause. The IF statement supports the use of optional ELSE IF clauses and a default ELSE clause. An END IF clause is required to indicate the end of the statement.

## How do I get the sum of a column in SQL?

**SELECT SUM(column_name) FROM table_name WHERE condition;**

- SQL SUM() function example – On a Specific column. …
- SUM() function On multiple columns. …
- SQL SUM() with where clause. …
- SQL SUM() EXAMPLE with DISTINCT. …
- SQL SUM function with GROUP BY clause.

## What is procedure in SQL with example?

SQL Server stored procedure is **a batch of statements grouped as a logical unit and stored in the database**. The stored procedure accepts the parameters and executes the T-SQL statements in the procedure, returns the result set if any.

## What is a SQL cross join?

The CROSS JOIN is **used to generate a paired combination of each row of the first table with each row of the second table**. This join type is also known as cartesian join. … The SQL CROSS JOIN works similarly to this mechanism, as it creates all paired combinations of the rows of the tables that will be joined.

## How do you do multiple columns in SQL?

To select multiple columns from a table, **simply separate the column names with commas**! For example, this query selects two columns, name and birthdate , from the people table: SELECT name, birthdate FROM people; Sometimes, you may want to select all columns from a table.

## How do you calculate percentage?

**How To Calculate Percent**

- Determine the total or whole amount.
- Divide the number to be expressed as a percent by the total. In most cases, you’ll divide the smaller number by the larger number.
- Multiple the resulting value by 100.

## What SQL command do you use to query a database?

The **SQL USE statement** is used to select any existing database in the SQL schema.

## How do you create a calculated field in SQL?

Go to your database, right click on tables, select “New Table” option. **Create** all **columns** that you require and to mark any **column** as **computed**, select that **column** and go to **column** Properties window and write your **formula** for **computed column**.