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Eclipse git checkout (aka, revert)
...ing" view, right click the deleted file in the "Unstaged Changes" list and select "Replace with HEAD Revision"
– Vlasta Dolejs
Sep 5 '17 at 8:03
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Setting the selected value on a Django forms.ChoiceField
...t hand, but this Q/A comes up for searches related to trying to assign the selected value to a ChoiceField.
If you have already called super().__init__ in your Form class, you should update the form.initial dictionary, not the field.initial property. If you study form.initial (e.g. print self.init...
How to see query history in SQL Server Management Studio
...been evicted, etc.), you may be able to find the query in the plan cache.
SELECT t.[text]
FROM sys.dm_exec_cached_plans AS p
CROSS APPLY sys.dm_exec_sql_text(p.plan_handle) AS t
WHERE t.[text] LIKE N'%something unique about your query%';
If you lost the file because Management Studio crashed, you...
Unicode characters in URLs
In 2010, would you serve URLs containing UTF-8 characters in a large web portal?
7 Answers
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(How) can I count the items in an enum?
...hich does what I described. namespace gx { enum struct DnaNucleobase : char { A, C, G, T }; } Then: namespace std { template<> struct numeric_limits<enum ::gx::DnaNucleobase> { typedef enum ::gx::DnaNucleobase value_ty...
typecast string to integer - Postgres
...ur value is an empty string, you can use NULLIF to replace it for a NULL:
SELECT
NULLIF(your_value, '')::int
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How to do a case sensitive search in WHERE clause (I'm using SQL Server)?
...the Collation. By default it is case insensitive.
Excerpt from the link:
SELECT 1
FROM dbo.Customers
WHERE CustID = @CustID COLLATE SQL_Latin1_General_CP1_CS_AS
AND CustPassword = @CustPassword COLLATE SQL_Latin1_General_CP1_CS_AS
Or, change the columns to be case sensitive.
...
Oracle “(+)” Operator
...dize OUTER joins.
The query would be re-written in ANSI-92 syntax as:
SELECT ...
FROM a
LEFT JOIN b ON b.id = a.id
This link is pretty good at explaining the difference between JOINs.
It should also be noted that even though the (+) works, Oracle recommends not using it:
Oracle re...
Highlight all occurrence of a selected word?
How can I highlight all occurrence of a selected word in GVim, like in Notepad++?
15 Answers
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What does the 'b' character do in front of a string literal?
...nce of the bytes type instead of the str type. They may only contain ASCII characters; bytes with a numeric value of 128 or greater must be expressed with escapes.
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