![]() This means that each of the hex strings will be converted into a single integer, and then the corresponding Unicode code point will be looked up. decode the bytes by decoding as UTF-8: bs.decode('utf-8') if your.High order bits indicate the length of the encoding of the code value,Īnd do not themselves contribute to the code value itself. The reverse of this encoding is not reversing your. The flip side is that later values have a longer encoding.) (This made plain ASCII files automatcally UTF-8Ĭompatible and made a lot of western european text compactly Its value is thatįor the first 128 codes (the ASCII range) the byte encoding is the sameĪt 1 byte per code. However, utf-8 is a variable width multibyte encoding. And I've never had a case where I thought it was worth calculating a hash key.I tried to code to convert string to hexdecimal and back for controleĪt this point you have a list of hexadecimal strings, one per character I fear making a mistake with autonumber() and accidentally using it across scripts somehow without realizing it, like if I convert a regular load into an incremental load, say, and autonumber() my incremental file before reading in the main file. I still don't see the point of it, but now I don't see the point of it for a different reason - how is that any different from autonumber() except for being slower? Honestly, I've never used any of them. The autonumberhashXXX() calculates a hash key. If we have to use hashXXX() to be dependent ONLY on the value we give it, in what situation would it ever be advantageous to use autonumberhashXXX()?Įdit: More edits! I guess I should have researched before replying, but I thought I knew this one. what's the point of it? A straight autonumber() will give you a smaller key and work just fine for a single script. AutonumberhashXXX() is apparently specific to one script. I would prefer not linking on concatenated string fields.Įxcept that it looks like I'm wrong as well. It would enable me to link the 2 QVDs together easily whenever I need to. I was thinking I would add hex keys to both QVDs at time of QVD creation that represent the Date and Trans Currency concatenated. And then I have QVD Y that has RecordID, Trans Currency, Charge, Year, Month, Date. My real life example is this, I have a QVD X that has ToUSDExchangeRate, Trans Currency, Year, Month, Date. For example using autogenerate(Products) on Table A may not give you the same result as autogenerate(Products) on Table B because of the nature of data on each table.Ĭan I have Qlikview generate a key that will always generate the same exact key based on the string value? For instance, if my Product is Apples how can I get Qlikview to always generate the same key value regardless of what qvd or table it is in? I was thinking you could convert the string of "Apples" to hexadecimal or binary and then use that as the key? Is that viable? Has anyone done that? Did you use a code in a module or is there a native qlikview command? The problem as I understand is that using autogenerate() doesn't keep your key consistent necessarily. Hi, I'm fairly new to qlik but from what I understand you can generate an integer key on a string by using autogenerate().
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