The CONCAT function combines multiple values into a single string. It is commonly available across modern relational database systems, although behavior around NULL values can vary.
CONCAT provides a clear way to build combined text values without relying entirely on database-specific concatenation operators.
Create a full customer name from first and last names.
SELECT
CONCAT(FirstName, ' ', LastName) AS FullName
FROM Customers;CONCAT is useful for names, addresses, labels, identifiers, and report-ready text.
- CONCAT combines multiple values.
- It can include literal separators.
- It is useful for creating display fields.
- NULL behavior depends on the database.
- It is often easier to read than complex concatenation expressions.
What does CONCAT do?
CONCAT combines multiple values into a single text string.
Why use CONCAT instead of manual concatenation?
CONCAT provides a clear and convenient way to combine multiple values and can simplify handling of text expressions.