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Init method in Spring Controller (annotation version)
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Git merge without auto commit
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
In my Rails (3.2) app, I have a bunch of tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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Static fields on a null reference in Java
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What is the best way to count “find” results?
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How can I install MacVim on OS X?
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SQL query to get all values a enum can have
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Escape regex special characters in a Python string
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Difference between jQuery’s .hide() and setting CSS to display: none
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What is the difference between Amazon S3 and Amazon EC2 instance?
...tever software you want, including a Web server running PHP code and a database server.
Amazon S3 is just a storage service, typically used to store large binary files. Amazon also has other storage and database services, like RDS for relational databases and DynamoDB for NoSQL.
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