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Database development mistakes made by application developers [closed]

...using it anyway. More here: How important are constraints like NOT NULL and FOREIGN KEY if I’ll always control my database input with php? Are foreign keys really necessary in a database design? Are foreign keys really necessary in a database design? 3. Using natural rather than surrogate (te...
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Get last field using awk substr

...fectly. I didnt think about $NF variable. Thanks for your immediate simple and effective answer. – Mari Jul 29 '13 at 10:27 6 ...
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AngularJS : The correct way of binding to a service properties

... Consider some pros and cons of the second approach: 0 {{lastUpdated}} instead of {{timerData.lastUpdated}}, which could just as easily be {{timer.lastUpdated}}, which I might argue is more readable (but let's not argue... I'm giving this poi...
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Identifying the dependency relationship for python packages installed with pip

...cies for packages installed by conda: e.g. in a conda env where matplotlib and numpy were installed using pip, but scipy was installed using conda, scipy shows up in the pipdeptree as having no depencies and no dependents (also pip show scipy shows no requirements). – djvg ...
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Paste multiple times

..., or use v instead of x (vnoremap). Vim help file version7.txt states xmap and smap appeared in that version. – Benoit Apr 4 '17 at 6:30 ...
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?

How to overload the operator++ in two different ways for postfix a++ and prefix ++a ? 5 Answers ...
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?

I have two branches, email and staging . staging is the latest one and I no longer need the old changes in email branch, yet I don't want to delete them. ...
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Embedding Base64 Images

...: Gecko-based, such as Firefox, SeaMonkey, XeroBank, Camino, Fennec and K-Meleon Konqueror, via KDE's KIO slaves input/output system Opera (including devices such as the Nintendo DSi or Wii) WebKit-based, such as Safari (including on iOS), Android's browser, Epiphany and Midori (WebKit ...
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Why is JSHINT complaining that this is a strict violation?

...l object (window in the browser). In strict mode, this would be undefined, and you would get in trouble. Presumably, you mean to call this function with a bound this context, e.g. gotoPage.bind(myObj)(5) or gotoPage.call(myObj, 5). If so, you can ignore JSHint, as you will not generate any errors. ...
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In PyCharm, how to go back to last location?

...gt; Back There is an option Back in the section Actions Ctrl + Shift + A And then the cursor comes back share | improve this answer | follow | ...