大约有 13,700 项符合查询结果(耗时:0.0345秒) [XML]

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Table name as variable

...or dynamic queries you should generate the full SQL dynamically, and use sp_executesql to execute it. Here is an example of a script used to compare data between the same tables of different databases: static query: SELECT * FROM [DB_ONE].[dbo].[ACTY] EXCEPT SELECT * FROM [DB_TWO].[dbo].[ACTY] ...
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Programmatically update widget from activity/service/receiver

...(this, MyAppWidgetProvider.class); intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE); // Use an array and EXTRA_APPWIDGET_IDS instead of AppWidgetManager.EXTRA_APPWIDGET_ID, // since it seems the onUpdate() is only fired on that: int[] ids = AppWidgetManager.getInstance(getApplication()) ...
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How can I format my grep output to show line numbers at the end of the line, and also the hit count?

... or in perl (for completeness...): perl -npe 'chomp; /null/ and print "$_ - Line number : $.\n" and $i++;$_="";END{print "Total null count : $i\n"}' share | improve this answer | ...
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Error 1022 - Can't write; duplicate key in table

...raints are currently in use you can use the following query: SELECT `TABLE_SCHEMA`, `TABLE_NAME` FROM `information_schema`.`KEY_COLUMN_USAGE` WHERE `CONSTRAINT_NAME` IN ('iduser', 'idcategory'); share | ...
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C++ lambda with captures as a function pointer

... @KerrekSB put the global variables in a namespace and mark them as thread_local, that's the ftw approach I chose for solving something similar. – Kjell Hedström Apr 21 '14 at 15:08 ...
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How to ignore deprecation warnings in Python

.../eddyp/virtualenv/lib/python2.6/site-packages/Twisted-8.2.0-py2.6-linux-x86_64.egg/twisted/persisted/sob.py:12: DeprecationWarning: the md5 module is deprecated; use hashlib instead import os, md5, sys /home/eddyp/virtualenv/lib/python2.6/site-packages/Twisted-8.2.0-py2.6-linux-x86_64.egg/twisted/p...
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Hidden Features of MySQL

...he SQL queries to guide MySQL to execute them faster. Administration: max_connections is the number of concurrent connections. The default value is 100 connections (151 since 5.0) - very small. Note: connections take memory and your OS might not be able to handle a lot of connections. MySQL b...
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How do you make a HTTP request with C++?

...> #include <sstream> using namespace std; #pragma comment(lib,"ws2_32.lib") int main( void ){ WSADATA wsaData; SOCKET Socket; SOCKADDR_IN SockAddr; int lineCount=0; int rowCount=0; struct hostent *host; locale local; char buffer[10000]; int i = 0 ; int nDataLength; string website_HTML;...
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putting datepicker() on dynamically created elements - JQuery/JQueryUI

... here is the trick: $('body').on('focus',".datepicker_recurring_start", function(){ $(this).datepicker(); });​ DEMO The $('...selector..').on('..event..', '...another-selector...', ...callback...); syntax means: Add a listener to ...selector.. (the body in our example)...
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Unable to install gem - Failed to build gem native extension - cannot load such file — mkmf (LoadErr

...ing so i had to run open /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg That didnt work for me at first because the version of CommandLineTools i had installed did not have the "Packages" folder. So i uninstalled and reinstalled like this: rm -rf /Library/Devel...