大约有 7,000 项符合查询结果（耗时：0.0242秒） [XML]
An error occurred while installing pg (0.17.1), and Bundler cannot continue
...gem install pg fails, try the following command:
env ARCHFLAGS="-arch x86_64" gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/MacOS/bin/pg_config
... from the PostgreSQL.app Documentation
share
...
What is the difference between float and double?
...E double-precision. Nevertheless, for most architectures (gcc, MSVC; x86, x64, ARM) float is indeed a IEEE single-precision floating point number (binary32), and double is a IEEE double-precision floating point number (binary64).
...
What's the difference between std::move and std::forward
...
Bo PerssonBo Persson
84k1919 gold badges134134 silver badges196196 bronze badges
a...
How to wait in a batch script? [duplicate]
...
I added the actual function its called timeout.. ss64.com/nt/timeout.html at least I know that others didn't know either :)
– Thomaschaaf
Apr 9 '09 at 19:42
...
Copy Notepad++ text with formatting?
...
npintinpinti
49.3k55 gold badges6464 silver badges8989 bronze badges
39
...
How can I generate random alphanumeric strings?
...ouTube's video IDs are A-Z a-z 0-9, as well as "-" and "_", which produces 64 possible characters, which divides into 256 evenly. Coincidence? I think not! :)
– qJake
Sep 26 '16 at 18:25
...
Why unsigned integer is not available in PostgreSQL?
... fit into long.
Another thing, if I did have the need to store 32 bit or 64 bit types, I can use PostgreSQL int4 or int8 respectively, just remembering that the natural order or arithmetic won't work reliably. But storing and retrieving is unaffected by that.
Here is how I can implement a simp...
Maximum number of threads in a .NET app?
...eads:
1023 in Framework 4.0 (32-bit environment)
32767 in Framework 4.0 (64-bit environment)
250 per core in Framework 3.5
25 per core in Framework 2.0
(These numbers may vary depending upon the hardware and OS)]
share
...
Split (explode) pandas dataframe string entry to separate rows
...
84
How about something like this:
In [55]: pd.concat([Series(row['var2'], row['var1'].split(','))...
Android Hello-World compile error: Intellij cannot find aapt
... and executing aapt directly also says file not found, you may be having a 64-bit issue: link
– Tomas
Jun 2 '13 at 7:07
...