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postgresql - add boolean column to table set default
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Note that if your table is big this can take a long time and lock the table for the entire time. It's faster to split it into steps: add the column without a default with ALTER TABLE users ADD COLUMN priv_user BOOLEAN;, then UPDATE users SET priv_user = 'f'; and finally if you need...
Style child element when hover on parent
...answered Aug 27 '11 at 21:16
jtbandesjtbandes
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How do I write LINQ's .Skip(1000).Take(100) in pure SQL?
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In SQL Server 2005 and above you can use ROW_NUMBER function. eg.
USE AdventureWorks;
GO
WITH OrderedOrders AS
(
SELECT SalesOrderID, OrderDate,
ROW_NUMBER() OVER (ORDER BY OrderDate) AS 'RowNumber'
FROM Sales.SalesOrderHeader
)
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What is NSZombie?
...planation. Let inform that Cocoa Dev Link is no more working. +1 for short and to the point.
– CRDave
Feb 7 '14 at 5:20
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Installing specific laravel version with composer create-project
The fastest and simplest way of installing Laravel is via composer command. From the laravel docs ( http://laravel.com/docs/quick ), it shows that we can install it with this:
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SQL Server 2008: how do I grant privileges to a username?
...ur-user-name'
If you need to be more granular, you can use the GRANT command:
GRANT SELECT, INSERT, UPDATE ON dbo.YourTable TO YourUserName
GRANT SELECT, INSERT ON dbo.YourTable2 TO YourUserName
GRANT SELECT, DELETE ON dbo.YourTable3 TO YourUserName
and so forth - you can granularly give SELECT...
Using variables inside a bash heredoc
... here-document
delimiter
No parameter expansion, command substitution, arithmetic expansion, or
pathname expansion is performed on word. If any characters in word are
quoted, the delimiter is the result of quote removal on word, and the
lines in the here-document are n...
Debugging iframes with Chrome developer tools
I'd like to use the Chrome developer console to look at variables and DOM elements in my app, but the app exists inside an iframe (since it's an OpenSocial app).
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Find the max of two or more columns with pandas
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You can get the maximum like this:
>>> import pandas as pd
>>> df = pd.DataFrame({"A": [1,2,3], "B": [-2, 8, 1]})
>>> df
A B
0 1 -2
1 2 8
2 3 1
>>> df[["A", "B"]]
A B
0 1 -2
1 2 8
2 3 1
>>> df[["A", "B"]].max(axis=1)
0...
Indentation in Go: tabs or spaces?
Is there a standard Google Go coding conventions document somewhere that sets whether tabs or spaces are preferred for indentation in Go source code? If not, what is the (statistically) more popular option?
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