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How to add a primary key to a MySQL table?

...le as it is written now, which can be a little confusing when doing simple SELECT * ... – StefanK Apr 12 '19 at 6:45 H...
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how to check if a form is valid programmatically using jQuery Validation Plugin

... jQuery Validation plugin: $("#form_id").valid(); Checks whether the selected form is valid or whether all selected elements are valid. validate() needs to be called on the form before checking it using this method. Where the form with id='form_id' is a form that has already had .validat...
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MySQL Multiple Joins in one query?

... You can simply add another join like this: SELECT dashboard_data.headline, dashboard_data.message, dashboard_messages.image_id, images.filename FROM dashboard_data INNER JOIN dashboard_messages ON dashboard_message_id = dashboard_messages.id INNER JO...
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Cannot find Dumpbin.exe

... Search for "command prompt" in the start menu, which brings up a selection of command prompts. Look for "Visual C++" or "Developer Studio" command prompts. – edW Feb 17 '19 at 23:26 ...
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Bundler: Command not found

... My solution was to make sure I selected a version of Ruby for that repo. Example: chruby 2.2.2 or rvm use 2.2.2 λ bundle install zsh: command not found: bundle λ ruby -v ruby 1.9.3p484 (2013-11-22 revision 43786) [x86_64-linux] ### Notice the system ...
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Possible to do a MySQL foreign key to one of two possible tables?

...ecific type of filter is easy if you know which type you want to join to: SELECT * FROM Products INNER JOIN FiltersType2 USING (product_id) If you want the filter type to be dynamic, you must write application code to construct the SQL query. SQL requires that the table be specified and fixed at ...
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sql ORDER BY multiple values in specific order?

... You can order by a selected column or other expressions. Here an example, how to order by the result of a case-statement: SELECT col1 , col2 FROM tbl_Bill WHERE col1 = 0 ORDER BY -- order by case-statement CASE WHEN tbl_Bi...
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jQuery: fire click() before blur() event

...opdown from stealing focus. The slight advantage is that the value will be selected when the mouse button is released, which is how native select components work. JSFiddle $('input').on('focus', function() { $('ul').show(); }).on('blur', function() { $('ul').hide(); }); $('ul').on('mousedo...
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Change One Cell's Data in mysql

... I was confused by this answer, thinking SET selected rows to change, and WHERE changed them. – Keith May 30 '17 at 18:50 ...
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How to build an APK file in Eclipse?

...ned .apk from Eclipse, right-click the project in the Package Explorer and select Android Tools -> Export Unsigned Application Package. Then specify the file location for the unsigned .apk. share | ...