客户机还可以将结果集绑定到一个BLOB，从而可以将字节安全地传递回客户机，而不必进行译码。

The client can also bind out the result set to a BLOB, which allows the bytes to be passed safely back to the client without transcoding.

youdao

每一字节的值(介于0 - 255之间的数值)可能对应a到Z之间的一个字母(如果它的值在65到90之间，便于选择同asci i码集相匹配)，或者也可能是一个空格(如果数值介于0到64之间，或91到255之间的话)。

Every byte's value (0-255, numerically) will be either a through Z (if the value is between 65 and 90, conveniently chosen to match the ASCII set), or a space (if the value is 0 to 64, or 91 to 255).

youdao