大约有 15,000 项符合查询结果(耗时:0.0254秒) [XML]

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What is the difference between a database and a data warehouse?

...at folks have already said, data warehouses tend to be OLAP, with indexes, etc. tuned for reading, not writing, and the data is de-normalized / transformed into forms that are easier to read & analyze. Some folks have said "databases" are the same as OLTP -- this isn't true. OLTP, again, is a ...
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How to schedule a function to run every hour on Flask?

... believe that for the newest versions, the package structure, class names, etc., have changed, so I'm putting here a fresh solution which I made recently, integrated with a basic Flask application: #!/usr/bin/python3 """ Demonstrating Flask, using APScheduler. """ from apscheduler.schedulers.backgr...
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Why not be dependently typed?

... a weaker requirement. We must check. If we must have distinct type, kind, etc levels, we can at least make sure everything at the type level and above can always be promoted. It would be great just to re-use the polymorphism we already have for types, rather than re-inventing polymorphism at the ki...
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How do you get the file size in C#?

... different, if you move the file to another filesystem (FAT16, NTFS, EXT3, etc) As other answerers have said, this will give you the size in bytes, not the size on disk. share | improve this answer...
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How to merge two files line by line in Bash

...s you override with the -d option, so you can use something like awk, sed, etc... to format each line. Example: paste file1.txt file2.txt | awk '{printf "%-61s | %s\n", $1,$2}' ... this mimics the diff --side-by-side output) – Yzmir Ramirez May 27 '16 at 17:50...
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Raise warning in Python without interrupting program

...module. It can log messages having a level of debug, info, warning, error, etc. Log messages having a level of warning or higher are by default printed to stderr. share | improve this answer ...
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How do I update a Linq to SQL dbml file?

...d EDMX (Entity Framework) mapping files, and more (like naming conventions etc.). Marc share | improve this answer | follow | ...
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decompiling DEX into Java sourcecode

... how about forming an apk ? placing classes in apk, zipalign, signing etc. – Buddy Aug 18 '15 at 14:25 ...
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How can I disable the UITableView selection?

... Yes. If you want to disable selection but allow UIButtons, etc... to continue to support user interaction, use #2. If you want a completely read-only cell, use #4. Of course, why you would have anything but UIViews or UILabels in a non-interactive cell is beyond me. Maybe somebody wo...
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Which sort algorithm works best on mostly sorted data? [closed]

...e case where the data is sorted in some way (forward, reverse, organ-pipe, etc.). Its great advantage over insertion sort is that it doesn't revert to O(n^2) behaviour when the data isn't sorted at all, so you don't need to be absolutely sure that the data is partially sorted before using it. Its ...