In sql injection we have a query

UNION ALL SELECT CHAR(113) CHAR(106) CHAR(122) CHAR(106) CHAR(113) CHAR(110) CHAR(106) CHAR(99) CHAR(73) CHAR(66) CHAR(109) CHAR(119) CHAR(81) CHAR(108) CHAR(88) CHAR(113) CHAR(112) CHAR(106) CHAR(107) CHAR(113),NULL--

where are this CHAR(113) CHAR(106) CHAR(122) CHAR(106). Every CHAR is representing a 1 letter, right? Where to see full list of this letters to CHAR?

CodePudding user response：

You can get a table of the ASCII character set with the command man ascii at a terminal prompt on Linux or MacOS (provided man pages are installed).

Here's an online version of that table: https://man7.org/linux/man-pages/man7/ascii.7.html

Probably this information is also available on Windows, I don't know.