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Generate GUID in MySQL for existing Data?
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10 Answers
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Active
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Add new field to every document in a MongoDB collection
...gt; db.foo.insert({"test":"a"})
> db.foo.find()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> item = db.foo.findOne()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> db.foo.update({"_id" :ObjectId("4e93037bbf6f1dd3a0a9541a") },{$set : {"new_field":1}})
&g...
How to write to an existing excel file without overwriting data (using pandas)?
....sheets for?
– BP_
Nov 26 '13 at 16:04
5
ExcelWriter for some reason uses this variable to access...
How to detect if CMD is running as Administrator/has elevated privileges?
...//www.robvanderwoude.com/clevertricks.php
AT > NUL
IF %ERRORLEVEL% EQU 0 (
ECHO you are Administrator
) ELSE (
ECHO you are NOT Administrator. Exiting...
PING 127.0.0.1 > NUL 2>&1
EXIT /B 1
)
Assuming that doesn't work and since we're talking Win7 you could use the fo...
How to remove unreferenced blobs from my git repo
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10 Answers
10
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How to get the last day of the month?
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30 Answers
30
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“Items collection must be empty before using ItemsSource.”
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edited Mar 27 '09 at 0:33
Zack Peterson
51.9k7676 gold badges200200 silver badges278278 bronze badges
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Getting attribute using XPath
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answered Dec 25 '10 at 23:13
Dimitre NovatchevDimitre Novatchev
225k2626 gold badges273273 silver badges394394 bronze badges
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Converting int to bytes in Python 3
...s on an iterable instead of a single integer:
>>> bytes([3])
b'\x03'
The docs state this, as well as the docstring for bytes:
>>> help(bytes)
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bytes(int) -> bytes object of size given by the parameter initialized with null bytes
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Migrating from JSF 1.2 to JSF 2.0
...n JSF 1.2 .
JSF 1.2 is around 6 years old now. I need to upgrade to JSF 2.0. How painful will this be? I noticed that some attributes in custom tags have been changed etc.
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