大约有 47,000 项符合查询结果(耗时:0.0510秒) [XML]

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SQL query for finding records where count > 1

...ers that have more than one payment per day with the same account number SELECT user_id , COUNT(*) count FROM PAYMENT GROUP BY account, user_id , date Having COUNT(*) > 1 Update If you want to only include those that have a distinct ZIP you can get a distinct set first and then perfor...
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Volley Android Networking Library

...ley repository via Git. Import the project into Android Studio. (I usually select the project's gradle file when importing in Android Studio) Build the project. (I had to change the gradle build settings to reflect the latest build tools and gradle version, but it's usually up to date). In your file...
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How do I install cURL on cygwin?

...p.exe and the Category name is Net, in that look for package name curl and select it. – Kuldeep Jain Oct 19 '13 at 7:42 ...
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varbinary to string on SQL Server

...AST it declare @b varbinary(max) set @b = 0x5468697320697320612074657374 select cast(@b as varchar(max)) /*Returns "This is a test"*/ This is the equivalent of using CONVERT with a style parameter of 0. CONVERT(varchar(max), @b, 0) Other style parameters are available with CONVERT for differ...
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What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?

...y we would typically write something like var query = context.Observations.Select(o => o.Id) .AsEnumerable().Select(x => MySuperSmartMethod(x)) ToList – which converts an IEnumerable<T> to a List<T> – is often used for this purpose as well. The advantage of...
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In Vim is there a way to delete without putting text in the register?

... Any ideas on doing this selectively on only empty lines? (If I dd on an empty line it goes into the blackhole, otherwise it dds like normal). – Jonathan Dumaine Mar 5 '13 at 23:28 ...
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How to get the selected radio button’s value?

...r working. I just want to find the value of the radio button (which one is selected) and return it to a variable. For some reason it keeps returning undefined . ...
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List of Stored Procedures/Functions Mysql Command Line

... For view procedure in name wise select name from mysql.proc below code used to list all the procedure and below code is give same result as show procedure status select * from mysql.proc ...
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ListView addHeaderView causes position to increase by one?

...'t care about the click to the header, subtract the number of header views from the position to get the position for your adapter: listView.addHeaderView(inflater.inflate( R.layout.my_hdr_layout, null), null, false); listView.setAdapter(m_adapter); listView.s...
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How to check if mysql database exists

... SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = 'DBName' If you just need to know if a db exists so you won't get an error when you try to create it, simply use (From here): CREATE DATABASE IF NO...