大约有 20,000 项符合查询结果（耗时：0.0439秒） [XML]
In php, is 0 treated as empty?
... a big log
– Miguel
Jun 8 '15 at 12:06
Why would you put @strlen. As long as you pass a variable it shouldn't output a...
How can I use map and receive an index as well in Scala?
...
answered Oct 24 '18 at 14:06
fgfernandez0321fgfernandez0321
14133 bronze badges
...
How do I get textual contents from BLOB in Oracle SQL
...
Doesn't work for me - I get "ORA-06502: PL/SQL: numeric or value error: raw variable length too long". I can put "2000,1" after BLOB_FIELD to get up to 2000 chars, but nothing beyond that.
– Mark
Sep 12 '13 at 13:26
...
Virtual Memory Usage from Java under Linux, too much memory used
...java/jdk-1.6-x64/bin/java
0000000040eba000 676K rwx-- [ anon ]
00000006fae00000 21248K rwx-- [ anon ]
00000006fc2c0000 62720K rwx-- [ anon ]
0000000700000000 699072K rwx-- [ anon ]
000000072aab0000 2097152K rwx-- [ anon ]
00000007aaab0000 349504K rwx-- [ anon ]
00000007c000000...
str performance in python
...03605651855
>>> Timer('"%s" % x', 'x=100').timeit()
0.2169809341430664
Do note that str is still slightly slower, as @DietrichEpp said, this is because str involves lookup and function call operations, while % compiles to a single immediate bytecode:
>>> dis.dis(lambda x: str(x)...
Convert NSNumber to int in Objective-C
... |
edited Dec 10 '19 at 4:06
pkamb
24.6k1818 gold badges116116 silver badges145145 bronze badges
answere...
How to add images to README.md on GitHub?
...
2062
Try this markdown:
I think you can link directly to the ...
Convenient C++ struct initialisation
...
answered May 31 '11 at 3:06
iammilindiammilind
60.2k2727 gold badges146146 silver badges282282 bronze badges
...
What does character set and collation mean exactly?
...
answered Dec 4 '08 at 17:06
matmat
11.5k44 gold badges3535 silver badges4444 bronze badges
...
MySQL Orderby a number, Nulls last
...mit).
– Barry Kelly
Oct 9 '15 at 14:06
3
@kalu: In PostgreSQL, NULL values are sorted last in asc...