将十六进制值插入 MySql

2022-01-09 00:00:00 binary hex mysql

我有一个带有 VARBINARY 列的表.我需要插入一个字符串，例如4D2AFF"，它分别代表十六进制值 0x4D、0x2A 和 0xFF.我如何构造这个语句?

I have a table with a VARBINARY column. I need to insert a string such as '4D2AFF' which represents the hex values 0x4D, 0x2A and 0xFF respectively. How do I construct this statement?

推荐答案

你可以使用UNHEX() 函数将具有十六进制对的十六进制字符串转换为二进制和 HEX() 反过来做.

You can use UNHEX() function to convert a hexstring with hex pairs to binary and HEX() to do the other way round.

即

INSERT INTO tbl (col) VALUES (UNHEX('4D2AFF'))

和

SELECT HEX(col) FROM tbl

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