SELECT *
FROM your_table
WHERE your_column LIKE '%' + CHAR(10) + '%'
Ou...
SELECT *
FROM your_table
WHERE CHARINDEX(CHAR(10), your_column) > 0
SELECT *
FROM your_table
WHERE your_column LIKE '%' + CHAR(10) + '%'
Ou...
SELECT *
FROM your_table
WHERE CHARINDEX(CHAR(10), your_column) > 0