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How to create and handle composite primary key in JPA
I want to have versions from the same data entry. In other words, I want to duplicate the entry with another version number.
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Random record in ActiveRecord
I'm in need of getting a random record from a table via ActiveRecord. I've followed the example from Jamis Buck from 2006 .
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Surrogate vs. natural/business keys [closed]
Here we go again, the old argument still arises...
19 Answers
19
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When to use Common Table Expression (CTE)
I have begun reading about Common Table Expression and cannot think of a use case where I would need to use them. They would seem to be redundant as the same can be done with derived tables. Is there something I am missing or not understanding well? Can someone give me a simple example of limitati...
How do you list the primary key of a SQL Server table?
..., how do you list the primary key of a table with T-SQL? I know how to get indexes on a table, but can't remember how to get the PK.
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Get current AUTO_INCREMENT value for any table
How do I get the current AUTO_INCREMENT value for a table in MySQL?
8 Answers
8
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RedirectToAction with parameter
... call from an anchor thusly, Site/Controller/Action/ID where ID is an int .
14 Answers
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SQL Server add auto increment primary key to existing table
As the title, I have an existing table which is already populated with 150000 records. I have added an Id column (which is currently null).
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How did Google manage to do this? Slide ActionBar in Android application
I really want to implement this (the side navigation) in an app of my own, does anyone know how Google managed to do this?
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How to properly create composite primary keys - MYSQL
Here is a gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as the ID. info is a table that contains information about both table_1 and table_2 .
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