如何将SQL中不正确的字段值替换为最常见的基于标识符列的值？

-- 确定不正确的字段值
SELECT field
FROM table
WHERE condition;

-- 计算每个字段值的频率
SELECT field, COUNT(*) AS frequency
FROM table
WHERE condition
GROUP BY field;

-- 获取最常见的字段值
SELECT field
FROM (
  SELECT field, COUNT(*) AS frequency
  FROM table
  WHERE condition
  GROUP BY field
  ORDER BY frequency DESC
  LIMIT 1
) AS subquery;

-- 将不正确的字段值替换为最常见的值
UPDATE table
SET field = (
  SELECT field
  FROM (
    SELECT field, COUNT(*) AS frequency
    FROM table
    WHERE condition
    GROUP BY field
    ORDER BY frequency DESC
    LIMIT 1
  ) AS subquery
)
WHERE condition;