大约有 40,000 项符合查询结果（耗时：0.0708秒） [XML]
How to update SQLAlchemy row entry?
...tr(query_result, key, value) for some updates in Flask SQLAlchemy followed by a commit. Any reason to discount this pattern?
– Marc
Feb 11 '16 at 20:57
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How to create ASP.NET Web API Url?
...if the URL is needed within an Area. (Api controllers are outside of Areas by default.) I'm using MVC 4.
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Oracle: how to UPSERT (update or insert into a table?)
... I disagree with Chotchki. "Lock Duration : All locks acquired by statements within a transaction are held for the duration of the transaction, preventing destructive interference including dirty reads, lost updates, and destructive DDL operations from concurrent transactions." Souce : l...
Is it possible to update a localized storyboard's strings?
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There are two options:
Option 1
Xcode can "reload" the file by converting the file to either an [Interface Builder Cocoa Touch Storyboard] file type or a [Localizable Strings] file type.
Select your base storyboard file from the Project Navigator
Find the Localization section in the ...
How to calculate the CPU usage of a process by PID in Linux from C?
..., and /proc/<PID>/stat tells you how many jiffies have been executed by a single process.
– caf
Sep 15 '09 at 6:21
1
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MySQL get row position in ORDER BY
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FROM TABLE t
JOIN (SELECT @rownum := 0) r
ORDER BY t.name) x
WHERE x.name = 'Beta'
...to get a unique position value. This:
SELECT t.id,
(SELECT COUNT(*)
FROM TABLE x
WHERE x.name <= t.name) AS position,
t.name
FROM TABLE t ...
How to customize a Spinner in Android
...ith a custom layout for your spinner.
Spinner spinner = (Spinner) findViewById(R.id.pioedittxt5);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
R.array.travelreasons, R.layout.simple_spinner_item);
adapter.setDropDownViewResource(R.layout.simple_spinner_dr...
JPA - Returning an auto generated id after persist()
... the first one of the values (for a single column key) in the Map returned by getIdSnapshot(), it contains also the column name(s) associated to the PK as key(s):
objectId.getIdSnapshot().values()
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Create dynamic URLs in Flask with url_for()
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to select the row with the maximum value in each group
...g to max values of pt within each group:
group[group[, .I[pt == max(pt)], by=Subject]$V1]
# Subject pt Event
# 1: 1 5 2
# 2: 2 17 2
# 3: 3 5 2
If you'd like just the first max value of pt:
group[group[, .I[which.max(pt)], by=Subject]$V1]
# Subject pt Event
#...