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Static table view outside UITableViewController

... The only way to get a static UITableView along with other controls on the same screen is to use a Container View. Follow this way, it works perfectly: Drag a ViewController onto your storyboard. Drag a TableViewController onto your storyboard. Next Drag ...
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Dump a mysql database to a plaintext (CSV) backup from the command line

...only convenient for mysql to read. CSV seems more universal (one file per table is fine). But if there are advantages to mysqldump, I'm all ears. Also, I'd like something I can run from the command line (linux). If that's a mysql script, pointers to how to make such a thing would be helpful. ...
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How to vertically center content with variable height within a div?

...ra markup and seems to work extremely well. I couldn’t use the display: table method because table elements don’t obey the max-height property. .block { height: 300px; text-align: center; background: #c0c0c0; border: #a0a0a0 solid 1px; margin: 20px; } .block::before { ...
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Why does comparing strings using either '==' or 'is' sometimes produce a different result?

...s and dynamic programming language runtimes) that rely heavily on hash tables with string keys. Without interning, checking that two different strings are equal involves examining every character of both strings. This is slow for several reasons: it is inherently O(n) in the length o...
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What does it mean by select 1 from table?

... SELECT 1 FROM TABLE_NAME means, "Return 1 from the table". It is pretty unremarkable on its own, so normally it will be used with WHERE and often EXISTS (as @gbn notes, this is not necessarily best practice, it is, however, common enough t...
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MySQL LIKE IN()?

... Over 1 million rows in my table. REGEX arround 0.0009 and LIKE arround 0.0005. If more then 5 REGEX, arround 0.0012... – David Bélanger Nov 26 '11 at 5:24 ...
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What's the difference between django OneToOneField and ForeignKey?

....title Run python manage.py syncdb to execute the sql code and build the tables for your app in your database. Then use python manage.py shell to open a python shell. Create the Reporter object R1. In [49]: from thepub.models import Reporter, Article In [50]: R1 = Reporter(first_name='Rick') I...
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How does a Java HashMap handle different objects with the same hash code?

...n, (it might be slightly different from Java 6). Data structures Hash table Hash value is calculated via hash() on key, and it decide which bucket of the hashtable to use for a given key. Linked list (singly) When count of elements in a bucket is small, a singly linked list is used. Red-Black t...
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Why would you use Expression rather than Func?

... @bertl Delegate is what CPU sees (executable code of one architecture), Expression is what compiler sees (merely another format of source code, but still source code). – codewarrior May 5 '17 at 9:22 ...
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Thread-safe List property

...em.ServiceModel.dll (which is part of the client profile but not of the portable class library). Hope that helps. share | improve this answer | follow | ...