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Recommended SQL database design for tags or tagging [closed]

...rd of a few ways to implement tagging; using a mapping table between TagID and ItemID (makes sense to me, but does it scale?), adding a fixed number of possible TagID columns to ItemID (seems like a bad idea), Keeping tags in a text column that's comma separated (sounds crazy but could work). I've e...
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Where are my postgres *.conf files?

...e it because I can't find config files. Searched through entire hard drive and found only samples like pg_hba.conf.sample ...
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Adjusting the Xcode iPhone simulator scale and size [duplicate]

...5 in Xcode, be the actual size of the iPhone 5. I'm getting a huge display and things seemed to be scaled. 8 Answers ...
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PHP convert date format dd/mm/yyyy => yyyy-mm-dd [duplicate]

...ate from dd/mm/yyyy => yyyy-mm-dd . I have using the mktime() function and other functions but I cannot seem to make it work. I have managed to explode the original date using '/' as the delimiter but I have no success changing the format and swapping the '/' with a '-' . ...
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Named Branches vs Multiple Repositories

...bversion on a relatively large codebase. Each release gets its own branch, and fixes are performed against the trunk and migrated into release branches using svnmerge.py ...
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Declaring pointers; asterisk on the left or right of the space between the type and name? [duplicate

I've seen mixed versions of this in a lot of code. (This applies to C and C++, by the way.) People seem to declare pointers in one of two ways, and I have no idea which one is correct, of if it even matters. ...
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AI2 SideBar Extension

... button. With larger apps, however, the available space quickly decreases and the layout becomes confusing. A side bar can help here. There are a number of implementations, but I haven't found a sufficiently extensive one and developed one myself. Almost all properties are adjustable. If somethin...
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What's the difference between “Layers” and “Tiers”?

What's the difference between "Layers" and "Tiers"? 13 Answers 13 ...
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Spring DAO vs Spring ORM vs Spring JDBC

I was going through data access technologies supported by Spring, and I noticed that it mentions multiple options and I am not sure about the difference among them: ...
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The written versions of the logical operators

This is the only place I've ever seen and , or and not listed as actual operators in C++. When I wrote up a test program in NetBeans, I got the red underlining as if there was a syntax error and figured the website was wrong, but it is NetBeans which is wrong because it compiled and ran as exp...