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>>First, thank you.
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>>I have seen this type of designation (e.g. '0h####') before but never could understand it. So you are saying that the first two characters (0h) means that it is a hexadecimal and the next 3 numbers are '01', '00', and '33'. What I don't understand is why '33' is "translated" to "3" in your equation?
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>The 0h## format is used to represent binary information, and it uses hexadecimal because it's a safe way to represent byte-based binary data (each byte uses two hexadecimal digits).
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>In the ASCII character tables, codes 0h30 to 0h39 (48 to 57 in decimal) represent the digits "0" to "9". So, CHR(0h33) == "3", in the same way that ? CAST("3" AS Q) will result in 0h33.
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>But, Dmitry, what I know about the database container structure is guesswork. If it results in what you're needing, then great, probably I'm guessing right. But it might me advisable to wear a helmet...

Antonio, what you know about the database container is quite a lot. And your code (in the initial message) was very helpful for me to do what I needed. Now I was just trying to understand how it works "under the hood". Of course I know that most likely I will forget about it in a short time. But for now, I am happy :).
Thank you!