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Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?

...e - which are typically implemented internally using b-trees (allowing for selecting, sorting or ranges starting from left most column) or hash tables (allowing for selection starting from left most column). Where the other index types are general-purpose, a FULLTEXT index is specialised, in that it...
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Add shadow to custom shape on Android

...;/shape> </item> </layer-list> Then you should have a selector with diferent versions of the button, something like: <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawabl...
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Where is SQL Server Management Studio 2012?

...all the entire SQL Server package, later on in the install process you can select to only install SSMS. – Baodad Jul 24 '13 at 18:21 ...
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Convert MySql DateTime stamp into JavaScript's Date format

...d. A MySQL DATETIME column can be converted to a unix timestamp through: SELECT unix_timestamp(my_datetime_column) as stamp ... We can make a new JavaScript Date object by using the constructor that requires milliseconds since the epoch. The unix_timestamp function returns seconds since the epoc...
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mysql - how many columns is too many?

...every column to be returned by every query is perfectly normal; that's why SELECT statement lets you explicitly name the columns you need. As a general rule, your table structure should reflect your domain model; if you really do have 70 (100, what have you) attributes that belong to the same entit...
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Where can I locate themes for VS2012

... in another machine and at first it did not work. It turned out that I had selected the key name from this response by double clicking it, then copied it, then pasted it in regedit. Well, by doing so I had inadvertently created the key with a trailing space in the name! And hence it did not work. S...
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Find text string using jQuery?

...undin = $('*:contains("I am a simple string")'); }); </script> The selector above selects any element that contains the target string. The foundin will be a jQuery object that contains any matched element. See the API information at: https://api.jquery.com/contains-selector/ One thing to ...
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Faster s3 bucket duplication

... If you don't mind using the AWS console, you can: Select all of the files/folders in the first bucket Click Actions > Copy Create a new bucket and select it Click Actions > Paste It's still fairly slow, but you can leave it alone and let it do its thing. ...
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Writing data into CSV file in C#

...re the values var allLines = (from trade in proposedTrades select new object[] { trade.TradeType.ToString(), trade.AccountReference, trade.SecurityCodeType.ToString(), trade.SecurityC...
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A weighted version of random.choice

...dom.choice (each element in the list has a different probability for being selected). This is what I came up with: 25 Answ...