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How do I drop a function if it already exists?

... IF EXISTS ( SELECT * FROM sysobjects WHERE id = object_id(N'function_name') AND xtype IN (N'FN', N'IF', N'TF') ) DROP FUNCTION function_name GO If you want to avoid the sys* tables, you could instead do (from here in example A...
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Is it true that one should not use NSLog() on production code?

...ions to control the defining (or lack of defining) the DEBUG_MODE. If you select "Debug" active configuration, DEBUG_MODE will be defined, and the macro expands to the full NSLog definition. Selecting the "Release" active configuration will not define DEBUG_MODE and your NSLogging is omitted from ...
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Check if all checkboxes are selected

How do I check if all checkboxes with class="abc" are selected? 9 Answers 9 ...
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:after vs. ::after

...nal difference between the CSS 2.1 :after and the CSS 3 ::after pseudo-selectors (other than ::after not being supported in older browsers)? Is there any practical reason to use the newer specification? ...
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DropDownList's SelectedIndexChanged event not firing

I have a DropDownList object in my web page. When I click on it and select a different value, nothing happens, even though I have a function wired up to the SelectedIndexChanged event. ...
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How do I convert a column of text URLs into active hyperlinks in Excel?

...y name itself HyperAdd. Sub HyperAdd() 'Converts each text hyperlink selected into a working hyperlink For Each xCell In Selection ActiveSheet.Hyperlinks.Add Anchor:=xCell, Address:=xCell.Formula Next xCell End Sub When you're finished pasting your macro, click Close and Re...
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How to delete a workspace in Eclipse?

...Mac OS, once you have deleted the actual workspace directory the option to select and switch to that workspace will still be available unless you delete the entry from Preferences >> General >> Startup and Shutdown >> Workspaces. ...
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Can CSS detect the number of children an element has?

...i:first-child:nth-last-child(4) ~ li { width: 25%; } The trick is to select the first child when it's also the nth-from-the-last child. This effectively selects based on the number of siblings. Credit for this technique goes to André Luís (discovered) & Lea Verou (refined). Don't you j...
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Producing a new line in XSLT

...aps in csv) you can output something like the following: <xsl:value-of select="concat(elem1,elem2,elem3,$newline)" /> I've used this technique when outputting sql from xml input. In fact, I tend to create variables for commas, quotes and newlines. ...
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using facebook sdk in Android studio

... what you want). Open project structure by Ctrl + Shift + Alt + S and then select dependencies tab. Click on + button and select Module Dependency. In the new window pop up select :facebook. You should be good to go. Instructions for older Android Studio and older Facebook SDK This applies to A...