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How many database indexes is too many?

...ery slow with lots of indexes since they all need to be modified each time one of these operations takes place Having said that, you can clearly add a lot of pointless indexes to a table that won't do anything. Adding B-Tree indexes to a column with 2 distinct values will be pointless since it doe...
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Auto-size dynamic text to fill fixed size container

...th this solution. sandstorm's method is most likely more accurate but this one is faster ;) – mekwall Nov 14 '11 at 15:43 2 ...
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trying to align html button at the center of the my page [duplicate]

...ute; top: 50%; } There are many ways to skin a cat, and this is just one. share | improve this answer | follow | ...
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Provisioning Profiles menu item missing from Xcode 5

...Lion), Xcode 5, fixing provisioning profiles, certificates, creating new ones, I finally managed to get my applications running on my iPad again. The problem is that in Xcode 5 I don't have a menu item for Library - Provisioning Profiles, and I don't know what could have happened. I restarted the ...
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Why does Oracle 9i treat an empty string as NULL?

... As I understand the SQL specifications, ' ' is not the same as NULL -- one is a valid datum, and the other is indicating the absence of that same information. ...
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How to change the author and committer name and e-mail of multiple commits in Git?

...r, and committing the changes to Git (in a repo that was in my pendrive, cloned from my computer at home). After several commits I realized I was committing stuff as the root user. ...
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Is “IF” expensive?

...itional branch is only taken if a certain condition holds (such as whether one number equals another); if the branch is not taken, control proceeds to the next instruction after the branch like normal. For unconditional branches, the branch is always taken. Conditional branches show up in if state...
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Need for predictable random generator

... real life results — sometimes players get 3 crits in 5 hits, sometimes none in 15 hits. Battles are rather short (3-10 hits) so it's important to get good random distribution. ...
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Where can I learn jQuery? Is it worth it?

...very helpful. A place where jQuery falls a little flat is with its UI components. Those don't seem to be quite ready for primetime just yet. It could be that Prototype or MooTools or ExtJS are as good as jQuery. But for me, jQuery seems to have a little more momentum behind it right now and that ...
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How to see the changes in a Git commit?

...it version 2.6.1.windows.1 on Windows 10. – Juuso Ohtonen Nov 24 '15 at 10:58 15 ...