大约有 47,000 项符合查询结果(耗时:0.0522秒) [XML]

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Modifying location.hash without page scrolling

... load if(document.location.hash){ $("#buttons li a").removeClass('selected'); s=$(document.location.hash.replace("btn_","")).addClass('selected').attr("href").replace("javascript:",""); eval(s); } //Click a button to change the hash $("#buttons li a").click(function()...
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How to COUNT rows within EntityFramework without loading contents?

... where o.ID == '1' from t in o.MyTable select t).Count(); Method syntax: var count = context.MyContainer .Where(o => o.ID == '1') .SelectMany(o => o.MyTable) .Count() Both generate the same SQL query. ...
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List all tables in postgresql information_schema

... You should be able to just run select * from information_schema.tables to get a listing of every table being managed by Postgres for a particular database. You can also add a where table_schema = 'information_schema' to see just the tables in the informat...
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Laravel Eloquent groupBy() AND also return count of each group

...working for me: $user_info = DB::table('usermetas') ->select('browser', DB::raw('count(*) as total')) ->groupBy('browser') ->get(); share | ...
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SQL query for today's date minus two months

I want to select all the records in a table where their date of entry is older then 2 months. 5 Answers ...
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Spring Boot JPA - configuring auto reconnect

...1.3 spring.datasource.testOnBorrow=true spring.datasource.validationQuery=SELECT 1 As djxak noted in the comment, 1.4+ defines specific namespaces for the four connections pools Spring Boot supports: tomcat, hikari, dbcp, dbcp2 (dbcp is deprecated as of 1.5). You need to check which connection po...
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Generating a random & unique 8 character string using MySQL

...umn: INSERT INTO vehicles VALUES (blah); -- leaving out the number plate SELECT @lid:=LAST_INSERT_ID(); UPDATE vehicles SET numberplate=concat( substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@lid)*4294967296))*36+1, 1), substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'...
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How enumerate all classes with custom class attribute?

... faster (especially without empirical proof); you've basically written the Select extension method, and the compiler will generate a state machine just as it would if you called Select because of your use of yield return. Finally, any performance gains that might be obtained in the majority of case...
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jQuery $(“#radioButton”).change(…) not firing during de-selection

...Andomar's solution worked but this makes more sense to me. Using the class selector prevents having to change the function if the form changes or has a dynamic number of fields. Yay for necro votes! (though now 2 years later jQuery recommends using prop() instead of attr(). api.jquery.com/prop) ...
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Toggle button using two image on different state

...k.xml in drawable folder <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <!-- When selected, use grey --> <item android:drawable="@drawable/selected_image" android:state_checked="true" /> <...