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ASCII(x) 

ASCII(x) is a string function that converts a character string x with the code attribute ASCII or UNICODE (if this is ASCII data) to ASCII data.

 

Result of the Function ASCII(x)

Code attribute for x is
ASCII or UNICODE

ASCII(x) is a character string in ASCII notation

x is a NULL value

NULL value

The ASCII functions are useful when ASCII code is to be used for sorting or comparison purposes.

Output of a sorted result table in ASCII order:

SELECT ASCII(name) FROM...WHERE...ORDER BY 1

 

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