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'App not Installed' Error on Android

...earing all of my cached data. Then, finally I realized all I had to do was select both signature versions when building my signed apk. Before I only had V2 (Full APK Signature) selected, but after selecting V1 Jar Signature as well, I was able to successfully install my signed APK on my 4.4.2 devic...
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How to get ER model of database from server with Workbench

... Go to "Database" Menu option Select the "Reverse Engineer" option. A wizard will be open and it will generate the ER Diagram for you. share | improve t...
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MySQL, better to insert NULL or empty string?

...or an empty string using a bound variable but not for a NULL. This query: SELECT * FROM mytable WHERE mytext = ? will never match a NULL in mytext, whatever value you pass from the client. To match NULLs, you'll have to use other query: SELECT * FROM mytable WHERE mytext IS NULL ...
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GROUP_CONCAT ORDER BY

... You can use ORDER BY inside the GROUP_CONCAT function in this way: SELECT li.client_id, group_concat(li.percentage ORDER BY li.views ASC) AS views, group_concat(li.percentage ORDER BY li.percentage ASC) FROM li GROUP BY client_id ...
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Find UNC path of a network drive?

...le from Windows Explorer into the body of a Word document or Outlook email Select 'Create Hyperlink Here' The inserted text will be the full UNC of the dragged item. share | improve this answer ...
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Best way to check if object exists in Entity Framework?

... hi. how can we check if it exists and after that select all its data? – virtouso Apr 7 '15 at 1:27 1 ...
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When should I use a table variable vs temporary table in sql server?

... source for the data inserted to the table is from a potentially expensive SELECT statement then consider that using a table variable will block the possibility of this using a parallel plan. If you need the data in the table to survive a rollback of an outer user transaction then use a table variab...
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How enable auto-format code for Intellij IDEA?

...ortion go to Editor Actions> complete current statement.Click on it and select add keyboard shortcut. Press ; and select ok. Use macro. Go to Edit> Macros> Start Macro Recording. Now press semicolon and keyboard shortcut to reformat code (you can find the keyboard shortcut from other ans...
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PostgreSQL delete with inner join

...ctprice WHERE m_pricelist_version_id='1000020' AND m_product_id IN (SELECT m_product_id FROM m_product WHERE upc = '7094'); share | improve t...
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Eclipse comment/uncomment shortcut?

... Ctrl + / and for multiple line comment you can use Ctrl + Shift + / after selecting the lines you want to comment in java editor. On Mac/OS X you can use ⌘ + / to comment out single lines or selected blocks. share ...