| Value | Meaning |
|---|---|
| error0xff | Server reports an error See_Also: https://dev.mysql.com/doc/internals/en/packet-ERR_Packet.html |
| ok0x00 | No error, no result set. See_Also: https://dev.mysql.com/doc/internals/en/packet-OK_Packet.html |
| eof0xfe | Server reports end of data See_Also: https://dev.mysql.com/doc/internals/en/packet-EOF_Packet.html |
Magic marker sent in the first byte of mysql results in response to auth or command packets.