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MySQL Fire Trigger for both Insert and Update

...me. 1. Define the INSERT trigger: DELIMITER // DROP TRIGGER IF EXISTS my_insert_trigger// CREATE DEFINER=root@localhost TRIGGER my_insert_trigger AFTER INSERT ON `table` FOR EACH ROW BEGIN -- Call the common procedure ran if there is an INSERT or UPDATE on `table` -- NEW.id is an...
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Does ARC support dispatch queues?

...d as * Objective-C types when building with an Objective-C compiler. This allows * them to participate in ARC, in RR management by the Blocks runtime and in * leaks checking by the static analyzer, and enables them to be added to Cocoa * collections. * * NOTE: this requires explicit cancellati...
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How to query SOLR for empty fields?

...ou need to change QueryParameter.cs (Create a new parameter) private bool _negativeQuery = false; public QueryParameter(string field, string value, ParameterJoin parameterJoin = ParameterJoin.AND, bool negativeQuery = false) { this._field = field; this._value = value.Trim(); this._para...
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How to destroy an object?

... objects as soon as the page is served. So this should only be needed on really long loops and/or heavy intensive pages. share | improve this answer | follow |...
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Get Base64 encode file-data from Input Form

...beginning stuff (up to the first ,), but that's no biggie. This would take all the fun out though. The hard way: If you want to try it the hard way (or it doesn't work), look at readAsArrayBuffer(). This will give you a Uint8Array and you can use the method specified. This is probably only useful ...
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Postgresql SELECT if string contains

... You should use 'tag_name' outside of quotes; then its interpreted as a field of the record. Concatenate using '||' with the literal percent signs: SELECT id FROM TAG_TABLE WHERE 'aaaaaaaa' LIKE '%' || tag_name || '%'; ...
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Right way to reverse pandas.DataFrame?

...ata.Odd[idx]) You are getting an error because reversed first calls data.__len__() which returns 6. Then it tries to call data[j - 1] for j in range(6, 0, -1), and the first call would be data[5]; but in pandas dataframe data[5] means column 5, and there is no column 5 so it will throw an exceptio...
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Convert.ChangeType() fails on Nullable Types

...a series of blog posts including this at http://www.endswithsaurus.com/2010_07_01_archive.html (Scroll down to the Addendum, @JohnMacintyre actually spotted the bug in my original code which led me down the same path you're on now). I have a couple of small modifications since that post that includ...
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Reactjs convert html string to jsx

...se the dangerouslySetInnerHTML property: <td dangerouslySetInnerHTML={{__html: this.state.actions}} /> React forces this intentionally-cumbersome syntax so that you don't accidentally render text as HTML and introduce XSS bugs. ...
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How does std::move() transfer values into RValues?

...ch I cleaned up a little bit): template <typename T> typename remove_reference<T>::type&& move(T&& arg) { return static_cast<typename remove_reference<T>::type&&>(arg); } Let's start with the easier part - that is, when the function is called wi...