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Multi flavor app based on multi flavor library in Android Gradle

...ile project(path: ':lib', configuration: 'market2Release') } Now you can select the app flavor and Build Variants panel and the library will be selected accordingly and all build and run will be done based on the selected flavor. If you have multiple app module based on the library Android Studio...
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Is there a MySQL option/feature to track history of changes to records?

...i AFTER INSERT ON MyDB.data FOR EACH ROW INSERT INTO MyDB.data_history SELECT 'insert', NULL, NOW(), d.* FROM MyDB.data AS d WHERE d.primary_key_column = NEW.primary_key_column; CREATE TRIGGER MyDB.data__au AFTER UPDATE ON MyDB.data FOR EACH ROW INSERT INTO MyDB.data_history SELECT 'up...
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sqlalchemy: how to join several tables by one query?

...sn't do a join at all" - that's a little misleading. It will have sql like select x from a, b ,c which is a cross join. The filters then make it an inner join. – Aidan Kane Sep 12 '16 at 13:04 ...
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How to find the port for MS SQL Server 2008?

...nfiguration -> Client Protocols -> TCP/IP double click ( Right click select Properties ) on TCP/IP. You will find Default Port 1433. Depending on connection, the port number may vary. share | ...
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How do I drop a foreign key constraint only if it exists in sql server?

...target a foreign key constraint on a specific table, use this: IF EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = OBJECT_ID(N'dbo.FK_TableName_TableName2') AND parent_object_id = OBJECT_ID(N'dbo.TableName') ) ALTER TABLE [dbo.TableName] DROP CONSTRAINT [FK_TableName_TableName2]...
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How can you represent inheritance in a database?

...is is how you would have to query all the policies regardless of the type: SELECT date_issued, other_common_fields, 'MOTOR' AS type FROM policies_motor UNION ALL SELECT date_issued, other_common_fields, 'PROPERTY' AS type FROM policies_property; Note how adding new subtypes woul...
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Flask SQLAlchemy query, specify column names

How do I specify the column that I want in my query using a model (it selects all columns by default)? I know how to do this with the sqlalchmey session: session.query(self.col1) , but how do I do it with with models? I can't do SomeModel.query() . Is there a way? ...
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Connect to Amazon EC2 file directory using Filezilla and SFTP

...SFTP, Click "Add key file” Browse to the location of your .pem file and select it. A message box will appear asking your permission to convert the file into ppk format. Click Yes, then give the file a name and store it somewhere. If the new file is shown in the list of Keyfiles, then continue t...
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What is RemoteSystemsTempFiles in Eclipse?

...s quite simple: In only 2 steps: install the plug-in then disable it. select Help -> Install New Software, then choose the "http://download.eclipse.org/releases/[your-version-here]", then enter remote in the filter box. search for the Remote System Explorer End-User Runtime & co. Probab...
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CSS Selector “(A or B) and C”?

...rmit groupings. It's essentially the lowest-precedence logical operator in selectors, so you must use .a.c,.b.c. share | improve this answer | follow | ...