Chr () and ASCII () functions in Oracle (attached: characters commonly used and ASCII table)keywords: chr ()Chr () function action: Special handling of "special" charactersThe corresponding loadline and special characters can be queried in PlsqlChr (
American Standard Information Interchange Standard Code
(American Standard Code for information interchange, ASCII)
In a computer, all data is stored and computed in binary representation (because the computer is silly, only the binary values of
Beginners love to develop small games, such as snakes and Tetris. To develop such games, they must be controlled by keys. Generally, we use the getch () function to receive keys directly, then convert it to the corresponding ASCII code, and compare
ASCII code table
The ASCII code can be roughly divided into three parts.The first part is ASCII non-printable control characters;The second part is: ASCII printing characters;The third part is: Extended ASCII print characters.Part 1: ASCII
Currently, the most widely used character set and Its Encoding in computers are American Standard Code for information interchange (American Standard Code for information interchange) developed by the National Bureau of Standards (ANSI ), it has
ASCII (American Standard Code for information interchange) is a computer coding system based on Latin letters. It is mainly used to display modern English and other Western European languages. It is the most common single-byte encoding system today
Oracle provides the following explanations for ASCII and CHR functions: ASCII (x) gets the ASCII value of the character X, CHR () and ASCII () have the opposite effect. That is, the ASCII function is used to convert characters into their
ASCIIIn a computer, all data is stored and computed using binary numbers (because the computer represents 1 and 0, respectively, with high and low levels), for example, 52 letters (including uppercase) such as a, B, C, D, and 0, 1, and other
Listing an ASCII table is saved everywhere !, One ascii copy
The table is from. Here
Extended code table:
Among the following characters, the smallest ASCII value is () A, Space B, 0 C, A D,
Minimum spaceThe largest one is.Common ASCII code size
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With the rapid development of computers, many people begin to learn about Linux and learn how to learn Linux commands well. To learn about Linux,
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