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How to use index in select statement?

... If you want to test the index to see if it works, here is the syntax: SELECT * FROM Table WITH(INDEX(Index_Name)) The WITH statement will force the index to be used. ...
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Pointer vs. Reference

... My rule of thumb is: Use pointers if you want to do pointer arithmetic with them (e.g. incrementing the pointer address to step through an array) or if you ever have to pass a NULL-pointer. Use references otherwise. ...
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How to dump a table to console?

...on: how do I go about installing an extension like pl.pretty? It's be nice if I could just do something like a gem install without futzing with unrolling tar balls and finding the ideal spot on my HD to situate things. Is there a quick/painless "do-it-this-way"? – Cliff ...
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How do you remove a specific revision in the git history?

...o combine revision 3 and 4 into a single revision, you can use git rebase. If you want to remove the changes in revision 3, you need to use the edit command in the interactive rebase mode. If you want to combine the changes into a single revision, use squash. I have successfully used this squash te...
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Definition of a Balanced Tree

I am just wondering if someone might be able to clarify the definition of a balanced tree for me. I have that "a tree is balanced if each sub-tree is balanced and the height of the two sub-trees differ by at most one. ...
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How to check “hasRole” in Java Code with Spring Security?

...Wrapper instance. You could improve it explaining how to obtain it and clarifying the answer itself a little bit more. – Xtreme Biker Feb 23 '15 at 9:59 3 ...
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Remove duplicate values from JS array [duplicate]

...,"Nancy","Carl"]; var uniqueNames = []; $.each(names, function(i, el){ if($.inArray(el, uniqueNames) === -1) uniqueNames.push(el); }); share | improve this answer | foll...
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Default string initialization: NULL or Empty? [closed]

...t be changed, for example, a user's middle name. NULL when it is an error if the ensuing code does not set the value explicitly. share | improve this answer | follow ...
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How to hide a in a menu with CSS?

...n.toggleOption = function( show ) { jQuery( this ).toggle( show ); if( show ) { if( jQuery( this ).parent( 'span.toggleOption' ).length ) jQuery( this ).unwrap( ); } else { if( jQuery( this ).parent( 'span.toggleOption' ).length == 0 ) jQuery( this...
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jQuery UI datepicker change event not caught by KnockoutJS

...rvable($el.datepicker("getDate")); }); //handle disposal (if KO removes by the template binding) ko.utils.domNodeDisposal.addDisposeCallback(element, function() { $el.datepicker("destroy"); }); }, update: function(element, valueAccessor) { ...