在MySQL中将存储的MD5字符串转换为十进制值？
您可以将conv()函数与一起使用，cast()以将十六进制转换为十进制值。
注意-MD5为十六进制
让我们首先创建一个表-
mysql> create table DemoTable ( Password text );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable values("a5391e96f8d48a62e8c85381df108e98");
mysql> insert into DemoTable values("ea7a32d2dc5bb793af262dcb6ea1a54d");使用select语句显示表中的所有记录-
mysql> select *from DemoTable;
这将产生以下输出-
+----------------------------------+ | Password | +----------------------------------+ | a5391e96f8d48a62e8c85381df108e98 | | ea7a32d2dc5bb793af262dcb6ea1a54d | +----------------------------------+ 2 rows in set (0.00 sec)
以下是在MySQL中将存储的md5字符串转换为十进制值的查询-
mysql> select cast(conv(substr(Password, 1, 16), 16, 10) as decimal(65))*18446744073709551616 + cast(conv(substr(Password, 17, 16), 16, 10) as decimal(65)) AS DecimalValue from DemoTable;
这将产生以下输出-
+-----------------------------------------+ | DecimalValue | +-----------------------------------------+ | 219619200658969319114298942978912194200 | | 311673842057003455136843080376797734221 | +-----------------------------------------+ 2 rows in set (0.00 sec)