大约有 32,000 项符合查询结果（耗时：0.0456秒） [XML]
When do I need to use a semicolon vs a slash in Oracle SQL?
...cript like this:
drop table foo;
/
And this is run from within SQL*Plus then this will be very confusing:
SQL*Plus: Release 11.2.0.1.0 Production on Wed Apr 18 12:38:05 2012
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11...
Where does Java's String constant pool live, the heap or the stack?
...e string pool.
All other String objects are NOT held in the string pool.
Then there is the separate question of where the string pool is "stored". Prior to Java 7 it was the permgen heap. From Java 7 onwards it is the main heap.
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Replacing a char at a given index in string? [duplicate]
...Concat(value.Select((c, i) => i == index ? newchar : c));
}
}
and then, for example:
string instr = "Replace$dollar";
string outstr = instr.ReplaceAt(7, ' ');
In the end I needed to utilize .Net Framework 2, so I use a StringBuilder class variant though.
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Installing Numpy on 64bit Windows 7 with Python 2.7.3 [closed]
...ew" is selected within the window as default. You can select "Pip" there.
Then you can install numpy without additional work by entering numpy into the seach window. The coresponding "install numpy" instruction is already suggested.
Nevertheless I had 2 easy to solve Problems in the beginning:
"...
Must Dependency Injection come at the expense of Encapsulation?
...Autowired on private fields; that makes the class hard to test; how do you then inject mocks or stubs?
– lumpynose
Jun 25 '09 at 20:10
4
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.NET String.Format() to add commas in thousands place for a number
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@VVVV - then you are probably passing in a string instead of a number. If you have a string, you need to first convert to float or double. Try string.Format("{0:n0}", Double.Parse(yourValue));
– ToolmakerSteve
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How do I find and view a TFS changeset by comment text?
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I admit, at first I cringed when I first read this, but then I said to heck with third party tools, this idea works just fine. Thank you!
– Chris Hawkes
Mar 4 '16 at 19:49
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Log to the base 2 in python
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If you are on python 3.4 or above then it already has a built-in function for computing log2(x)
import math
'finds log base2 of x'
answer = math.log2(x)
If you are on older version of python then you can do like this
import math
'finds log base2 of x'
ans...
Git diff says subproject is dirty
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Also removing the submodule and then running git submodule init and git submodule update will obviously do the trick, but may not always be appropriate or possible.
share
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angular js unknown provider
...g-app="myApp" ng-controller="CartCtrl">
I got rid of the first one... then it worked... obviously you can't initialise ng-app twice or more times. fair enough.
I totaly forgot about the first "ng-app" and got totaly frustrated. Maybe this is gonna help someone oneday...
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