在字符串 [T-SQL] 中的第一个空格后插入逗号

Question

I have a field that contains full names like "Last First Middle" with no comma.

I want to put a comma after the last name like "Last, First Middle".

Answer 1

Use the CHARINDEX function to find the first space in the string and then use the STUFF function to stuff a comma in there.

DECLARE @FullName as NVARCHAR(50)

SET @FullName = 'Harris Neil Patrick'

SELECT STUFF(@FullName, CHARINDEX(' ', @FullName, 0), 0, ',');

returns 'Harris, Neil Patrick'