要通过Delete SQL删除重复记录，可以按照以下步骤进行操作：
SELECT column1, column2, COUNT(*)
FROM table_name
GROUP BY column1, column2
HAVING COUNT(*) > 1;
WITH CTE AS (
SELECT column1, column2,
ROW_NUMBER() OVER(PARTITION BY column1, column2 ORDER BY column1) AS RN
FROM table_name
)
DELETE FROM CTE
WHERE RN > 1;
需要注意的是，在执行删除操作之前，建议先备份数据，以免误操作导致数据丢失。
