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How to import multiple .csv files at once?
... answered Jul 11 '12 at 13:16
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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
...or checking a variable.
| 1a 2a 3a 4a 5a 6a | 1b 2b 3b 4b 5b 6b
| [ [" [-n [-n" [-z [-z" | [[ [[" [[-n [[-n" [[-z [[-z"
-----+------------------------------------+------------------------------------
unset| false false true false true t...
SQLite: How do I save the result of a query as a CSV file?
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From here and d5e5's comment:
You'll have to switch the output to csv-mode and switch to file output.
sqlite> .mode csv
sqlite> .output test.csv
sqlite> select * from tbl1;
sqlite> .output stdout
...
What is a “surrogate pair” in Java?
...in characters, see http://en.wikipedia.org/wiki/UTF-16/UCS-2#Code_points_U.2B10000..U.2B10FFFF
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How can I represent an 'Enum' in Python?
... community wiki
7 revs, 5 users 85%Ashwin
7
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URL encoding the space character: + or %20?
...e the "+" character (as a result of this ambiguity) has to be escaped to "%2B".
This means that the "blue+light blue" string has to be encoded differently in the path and query parts:
"http://example.com/blue+light%20blue?blue%2Blight+blue".
From there you can deduce that encoding a f...
How to generate keyboard events in Python?
... : 0x29,
'\\' : 0x2A,
',' : 0x2B,
'/' : 0x2C,
'n' : 0x2D,
'm' : 0x2E,
'.' : 0x2F,
'`' : 0x32,
'k.' : 0x41,
'k*' : 0x4...
Understanding Python's “is” operator
...b
>>> a = 132
>>> b = 132
>>> hex(id(a))
'0x7faa2b609738'
>>> hex(id(b))
'0x7faa2b609738'
>>> a is b
True
>>> a == b
True
>>>
In the above example, even though a and b are two different variables, a is b returned True. This is because ...
How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
... community wiki
6 revs, 2 users 85%leonbloy
3
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python MySQLdb模块安装 - 更多技术 - 清泛网 - 专注IT技能提升
...就不介绍了，源码地址给出）
https://pypi.python.org/packages/a5/e9/51b544da85a36a68debe7a7091f068d802fc515a3a202652828c73453cad/MySQL-python-1.2.5.zip#md5=654f75b302db6ed8dc5a898c625e030c
ok~