ASCII chart
common ascii codes to know. Char Dec Oct Hex WhatAreThey -. (nul) 0 0000 0x00 Null (ht) 9 0011 0x09 Horizontal Tab (nl) 10 0012 0x0a New Line (vt) 11 0013 0x0b Vertical Tab (cr) 13 0015 0x0d Carriage Return (sp)...
Функции CAST и CONVERT (Transact-SQL) - SQL... | Microsoft Docs
В данном случае будет получено шестнадцатеричное значение 4100: SELECT CAST(CAST(0x41 AS nvarchar) AS varbinary).It returns a hexadecimal
CAST and CONVERT (Transact-SQL) - SQL Server | Microsoft Docs
It returns a hexadecimal value of 4100: SELECT CAST(CAST(0x41 AS nvarchar) AS varbinary).
c - What actually happens when a pointer to integer is cast to a pointer...
It's casting an int pointer to a char pointer.
MySQL :: MySQL 5.0 Reference Manual :: 11.9 Cast Functions and...
CAST(expr AS CHAR) treats the expression as a string with the default character set. CAST() also changes the result if you use it as part of a more
Array of Pointers to Strings in C - OverIQ.com
As you can see not all strings are long enough to fill all the rows of the array, that’s why compiler fills these empty spaces
Unicode Lookup: convert special characters
0x1D351 hexadecimal. 0b110101 binary number. Examples. Greek characters.
MySQL :: MySQL 8.0 Reference Manual :: 12.10 Cast Functions and...
SELECT CAST('test' AS CHAR CHARACTER SET utf8 COLLATE utf8_bin); Normally, you cannot compare a BLOB value or other binary string in case-insensitive fashion because binary strings use the binary character set, which has no collation with the concept of lettercase.
ASCII Code - The extended ASCII table
The first 32 characters in the ASCII-table are unprintable control codes and are used to control peripherals such as printers.