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How to generate serial version UID in Intellij
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very nice, very easy to install. you can install that from plugins menu, select install from disk, select the jar file you unpacked in the lib folder. restart, control + ins, and it pops up to generate serial UID from menu. love it. :-)
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ERROR: Error 1005: Can't create table (errno: 121)
...y used somewhere else
To check constraints use the following SQL query:
SELECT
constraint_name,
table_name
FROM
information_schema.table_constraints
WHERE
constraint_type = 'FOREIGN KEY'
AND table_schema = DATABASE()
ORDER BY
constraint_name;
Look for more information there,...
What's wrong with nullable columns in composite primary keys?
...ow in a table: when a table has a primary key, you have a guranteed way to select any row from it.
A unique constraint does not necessarily identify every row; it just specifies that if a row has values in its columns, then they must be unique. This is not sufficient to uniquely identify every row...
Delete a project from SonarQube
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Updated for Sonar 2.11:
Select the project (from the home page)
Then click on the Project Deletion link on the bottom of the left panel
Finally, confirm using the Delete Project button
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Facebook Graph API v2.0+ - /me/friends returns empty, or only friends who also use my application
...s form Facebook.
1) Enable our app status live:
Go to the apps page and select your app
https://developers.facebook.com/apps/
Select status in the top right in Dashboard.
Submit privacy policy URL
Select category
Now our app is in Live status.
One step is completed.
2) Submit our app ...
Huawei, logcat not showing the log for my app?
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For Huawei with Android 8.0+
we must dial the code: *#*#2846579#*#*
and selecting the option AP Log will be enough to display the messages in the LogCat.
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jQuery Click fires twice when clicking on label
... This worked for me as i still wanted the radio button to be selected. I just didn't want the event handler do to everything twice.
– chovy
Dec 14 '13 at 1:50
1
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How to install plugin for Eclipse from .zip
... Do not choose your .zip file, but unzip it. Then Add -> Local to select the folder which extracted one. that folder suppose only contains single eclipse folder.
– JustWe
Jul 18 '19 at 8:29
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Unable to install gem - Failed to build gem native extension - cannot load such file — mkmf (LoadErr
... reinstalled like this:
rm -rf /Library/Developer/CommandLineTools
xcode-select --install
Then i ran the previous command again:
open /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg
After install the error was fixed!
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Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...ere an example of a if with dynamic conditions translated to a dictionary.
selector = {lambda d: datetime(2014, 12, 31) >= d : 'before2015',
lambda d: datetime(2015, 1, 1) <= d < datetime(2016, 1, 1): 'year2015',
lambda d: datetime(2016, 1, 1) <= d < datetime(2...