How to trim a string in SQL Server before 2017?

In SQL Server 2017, you can use this syntax, but not in earlier versions:

SELECT Name = TRIM(Name) FROM dbo.Customer;

SELECT LTRIM(RTRIM(Names)) AS Names FROM Customer

To Trim on the right, use:

SELECT RTRIM(Names) FROM Customer

To Trim on the left, use:

SELECT LTRIM(Names) FROM Customer

To Trim on the both sides, use:

SELECT LTRIM(RTRIM(Names)) FROM Customer

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