SQL how to sum multiple columns Code Answer's

SQL (Structured Query Language) is a language for manipulating, retrieving, and reporting data in databases. It is a standard language for interacting with relational database management systems (RDBMS).
The SQL command to sum multiple columns is:
SELECT column1,column2 FROM table_name GROUP BY column1,column2 HAVING sum(column1) + sum(column2) <> 0

sql add two values together

on Jan 01, 1970
SELECT  ID, SUM(VALUE1 + VALUE2)
FROM    tableName
GROUP   BY ID

--or simple addition

SELECT
	ID,
	(VALUE1 + VALUE2) as AddedValues
FROM tableName

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To explain this statement in more detail:
SELECT - This tells the SQL engine which columns to return. If you don't specify the data types for each column, they will be returned as strings by default. You can also use DISTINCT if you want to show only unique values in a column.
FROM - The FROM clause specifies the table from which you are selecting data.

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