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How do I remove the first characters of a specific column in a table?
...minately cuts off first 4 chars:update table set textField = (SELECT STUFF(CONVERT(VARCHAR(MAX), textField), 1, 4, '')) where activitytype='A' and approveddate > '2017-06-30' and textField not like '%The County1%' and textField not like '%The County2%' and abstract not like '%The County3%') and a...
Selecting pandas column by location
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The method .transpose() converts columns to rows and rows to column, hence you could even write
df.transpose().ix[3]
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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
...e queries are really fast, but it's the round trips that wreak havok. I've converted "WHERE Id = const" to "WHERE Id IN (const, const, ...)" and gotten orders of magnitude increases out of it.
– Hans
Oct 2 '12 at 23:07
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The cast to value type 'Int32' failed because the materialized value is null
...To allow a nullable Amount field, just use the null coalescing operator to convert nulls to 0.
var creditsSum = (from u in context.User
join ch in context.CreditHistory on u.ID equals ch.UserID
where u.ID == userID
se...
Selecting multiple columns in a pandas dataframe
...n interface to NumPy's usual __getitem__ syntax. That said, you can easily convert a column-slicing problem into a row-slicing problem by just applying a transpose operation, df.T. Your example uses columns[1:3], which is a little misleading. The result of columns is a Series; be careful not to just...
string.Join on a List or other type
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because he would have a List<int>. The linq select converts the List<int> to IEnumerable<string> and then to the array.
– Greg Bogumil
Aug 31 '10 at 15:30
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How to resize the iPhone/iPad Simulator?
... follow below steps :
Select Simulator
Goto edge of simulator. This will convert your cursor to resize option (Bidirectional arrow).
Now using this resize option you can change the size as you desire.
Xcode 8 or below :
https://stackoverflow.com/a/30588057/1753005
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Compare dates in MySQL
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That is SQL Server syntax for converting a date to a string. In MySQL you can use the DATE function to extract the date from a datetime:
SELECT *
FROM players
WHERE DATE(us_reg_date) BETWEEN '2000-07-05' AND '2011-11-10'
But if you want to take advanta...
How to clear variables in ipython?
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You could convert your script into a function to keep the global namespace clean.
– Robert Pollak
Feb 10 '15 at 9:56
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What type of hash does WordPress use?
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Just tried it also and logged in. The MD5 got auto-converted to a wp hash. Wp version 5.1
– Miro
Nov 20 '19 at 23:16
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