![]() ![]() The first hex digit is the decimal value minus its modulo 16, all divided by 16, the second digit is the remainder, the modulo 16 of the original decimal value: SUBSTRING('0123456789ABCDEF', 1+(, function returns a char(2) scalar value, which means that we’re only translating characters from CHAR(0) to CHAR(255) to a two-digit hex value (00-FF). This is the most compact char-to-hex function I could construct. A function to convert a character to its hex value It breaks down into two functions, the URL encoding function, and a decimal-to-hex function. Calculating hex values from decimal values.So in order to make this work, we’ll negotiate a number or challenges in T-SQL, including 39 decimal is 27 hex (2×16 + 7), so then the URL encoded apostrophe is %27. Should be translated as Here%27s%20a%20%28test%29%20stringįor example, the apostrophe is equivalent to CHAR(39). To URL encode a string, you translate special characters to their ascii value, turn that into a hexadecimal value, then prefix that value with a percent sign, so the following string Here's a (test) string URL encoding is what happens when you translate special characters (basically anything that isn’t an alphanumerical) so they’ll fit in a URL. A while ago, I needed to create a URL encoding function in T-SQL.
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