大约有 40,000 项符合查询结果(耗时:0.0531秒) [XML]
When/Why to use Cascading in SQL Server?
...@HLGEM - I don't see the relevance. If a cascade operations causes a slow down, the equivalent manual process would either cause the same slow down or not be correctly protected in case the transaction needs to be rolled back.
– Joel Coehoorn
May 14 '10 at 19:...
How many spaces will Java String.trim() remove?
...
I had to down-vote as this answer does not cover what the documentation means by "whitespace". It would seem logical that it would be where Chararacter.isWhitespace is true, but that is not what it means by "whitespace" ..
...
Django: How to manage development and production settings?
...pp.test_settings to use the latter.
From here on out, the problem boils down to setting the DJANGO_SETTINGS_MODULE environment variable.
Setting DJANGO_SETTINGS_MODULE using a script or a shell
You can then use a bootstrap script or a process manager to load the correct settings (by setting th...
Sqlite: CURRENT_TIMESTAMP is in GMT, not the timezone of the machine
...
I found on the sqlite documentation (https://www.sqlite.org/lang_datefunc.html) this text:
Compute the date and time given a unix
timestamp 1092941466, and compensate
for your local timezone.
SELECT datetime(1092941466, 'unixepoch', 'localtime');
Tha...
How to filter logcat in Android Studio?
...
I MADE A VIDEO TUTORIAL TO SHOW YOU HOW= https://youtu.be/xw2qE5ko_9I
Give your log a name. I called mine "wawa".
In Android Studio, go to Android-> Edit Filter Configurations
Then type in the name you gave the logs. In my case, it's called "wawa". Here ...
How do I obtain a Query Execution Plan in SQL Server?
...u will also need to add additional filtering clauses to filter the results down to just the plans you are interested in.
SELECT UseCounts, Cacheobjtype, Objtype, TEXT, query_plan
FROM sys.dm_exec_cached_plans
CROSS APPLY sys.dm_exec_sql_text(plan_handle)
CROSS APPLY sys.dm_exec_query_plan(plan_han...
IE10 renders in IE7 mode. How to force Standards mode?
...eUploader: {
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 46.2665 7.94324 4...
Tool to track #include dependencies [closed]
...f you don't want to go the way of that sort of manual tool, then the hands-down by far winner is in my opinion a tool known as "IncludeManager" from ProFactor.
http://www.profactor.co.uk/includemanager.php
There's a free trial, and it is awesome. It's a plug-in for Visual Studio that's totally int...
Error 1046 No database Selected, how to resolve?
...nch...
...you need to select the appropriate database/catalog in the drop down menu found above the :Object Browser: tab. You can specify the default schema/database/catalog for the connection - click the "Manage Connections" options under the SQL Development heading of the Workbench splash screen....
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...eUploader: {
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 46.2665 7.94324 4...