在 SQL 中,可以使用 SELECT
語句中的 REPLACE
函數或者 SUBSTRING
函數來對敏感數據進行脫敏處理。下面是一些示例:
REPLACE
函數對手機號進行脫敏:SELECT REPLACE(phone_number, SUBSTRING(phone_number, 4, 4), '****') AS masked_phone_number
FROM customers;
SUBSTRING
函數對郵箱地址進行脫敏:SELECT CONCAT(
SUBSTRING(email, 1, 3),
REPEAT('*', CHAR_LENGTH(email) - 7),
SUBSTRING(email, CHAR_LENGTH(email) - 3)
) AS masked_email
FROM customers;
REPLACE
函數對身份證號進行脫敏:SELECT CONCAT(
SUBSTRING(id_number, 1, 6),
REPEAT('*', CHAR_LENGTH(id_number) - 10),
SUBSTRING(id_number, CHAR_LENGTH(id_number) - 3)
) AS masked_id_number
FROM customers;
通過以上方法,可以對敏感數據進行脫敏處理,保護用戶的隱私信息。