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Binary options winning formula pdf to excel
New topic Register Log in. However one thing I may be blindly missing? In our database we have a longblob that is use to store the raw form of large XML documents.
In the current version when I select the field I get the binary editor, showing me the hex values. Has this feature been removed? Once you've done so, HeidiSQL pops up with a text editor for editing.
HEX is displayed in all columns which have a binary collation so it's safe to edit a binary file for example. Sadly we can't control the schema for how we get things. Also theoretically these data structures could contain many megabites of data. I assume, hence the blob.
I know, but it's not our schema to control: So we should break everyone's data and display binary stuff as text? Well, just starr rfe - it basically says what you need - add a text view er to the binary editor. I have a rather agnostic and minimalist approach to database type issues. All of this information could be provided in a myriad of ways to a database with no notion of a column type at all. Its just a crutch from the history of software development. The fact is, databases dont interoperate with programming languages.
No database integrates type wise except through a translation layer to its clients. They may agree on certain basics like whats a number or whats a string, or a date if your lucky, but if you wanna use Java as an example not a single DB vendor fully implements the JDBC specification going back a decade.
And thats a sunny, rosy best case example. ODBC and anything else you could speak of are far worse. Thats why, in my code I always convert every single column value to a string. It always does a proper and btw human readable conversion. If you convert every column into a string in the client your database is actually readable.
Pick up the phone, call the guy that controls it, tell him he's doing it wrong. As a workaround, create a VIEW to cast the data: Not every binary character fits in a Unicode string, and a lot of string handling functions will barf up garbage if you try anyway. That usually means cutting the string short, or removing a couple of characters from it.
If by "string" you mean handle data as 8-bit in some character set, then yeah you'll be fine, as long as you don't use any C functions which will abort on NUL character, giving you garbage truncation again. Also if you mismatch the character set you'll see wrong stuff, so there's a bit of manual work involved, matching everything up.
If by "string" you mean "byte array", then yeah that should work fine. Not a very useful representation, though, being essentially just a bunch of numbers.