sql delete duplicate

DELETE FROM [SampleDB].[dbo].[Employee]
    WHERE ID NOT IN
    (
        SELECT MAX(ID) AS MaxRecordID
        FROM [SampleDB].[dbo].[Employee]
        GROUP BY [FirstName], 
                 [LastName], 
                 [Country]
    );

# Step 1: Copy distinct values to temporary table
CREATE TEMPORARY TABLE tmp_user (
    SELECT id, name 
    FROM user
    GROUP BY name
);

# Step 2: Remove all rows from original table
DELETE FROM user;

# Step 3: Remove all rows from original table
INSERT INTO user (SELECT * FROM tmp_user);

# Step 4: Remove temporary table
DROP TABLE tmp_user;