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SQL Server - When to use Clustered vs non-Clustered Index?

...ing: please very carefully pick your clustered index! Every "regular" data table ought to have a clustered index, since having a clustered index does indeed speed up a lot of operations - yes, speed up, even inserts and deletes! But only if you pick a good clustered index. It's the most replicated ...
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SQL Server: Query fast, but slow from procedure

...be made to make sense, since the view does have a join clause that says: (table.column IS NOT NULL) So there is some NULLs involved. The explanation is further proved by returning to Query Analizer, and running SET ANSI_NULLS OFF . DECLARE @SessionGUID uniqueidentifier SET @SessionGUID = '...
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Ruby on Rails. How do I use the Active Record .build method in a :belongs to relationship?

...ethod you pass to a string and dissects it and tries to match it with your table's column names. – bigpotato Oct 16 '13 at 17:57 ...
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PostgreSQL - Rename database

... The above suggestions make me think it's better to keep table names restricted to just lowercase letters and underscore if possible! – Aswin Sanakan Feb 17 at 6:52 ...
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Set a default parameter value for a JavaScript function

... Here is the compatibility table for ES6 kangax.github.io/compat-table/es6/#default_function_parameters Unfortunately this syntax isn't supported yet. – freemanoid Jul 9 '15 at 19:03 ...
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ng-model for `` (with directive DEMO)

...le" select-ng-files ng-model="fileArray" multiple> <code><table ng-show="fileArray.length"> <tr><td>Name</td><td>Date</td><td>Size</td><td>Type</td><tr> <tr ng-repeat="file in fileArray"> <td>{{...
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Switching a DIV background image with jQuery

I am making an expand/collapse call rates table for the company I work for. I currently have a table with a button under it to expand it, the button says "Expand". It is functional except I need the button to change to "Collapse" when it is clicked and then of course back to "Expand" when it is clic...
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Add a common Legend for combined ggplots

... Update 2015-Feb See Steven's answer below df1 <- read.table(text="group x y group1 -0.212201 0.358867 group2 -0.279756 -0.126194 group3 0.186860 -0.203273 group4 0.417117 -0.002592 group1 -0.212201 0.358867 group2 -0.279756 -0.126194 group3 0.186860 -0.203273 group...
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Using :after to clear floating elements

...s well: .clearfix:before, .clearfix:after { content: ""; display: table; } .clearfix:after { clear: both; } /* IE 6 & 7 */ .clearfix { zoom: 1; } Give the class clearfix to the parent element, for example your ul element. Sources here and here. ...
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Numpy where function multiple conditions

...u even asking it to get logical AND of, because in the operator precedence table if you see, & is given precedence over < or > operators. Here's the table from from lowest precedence to highest precedence. It's not even performing the < and > operation and being asked to perform a...