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How to change a nullable column to not nullable in a Rails migration?

... For Rails 4, this appears to be the most accurate and complete answer, including the commented-out default setting. – Mike Fischer Aug 23 '15 at 16:31 ...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...
https://www.tsingfun.com/it/op... 

Catch All Bugs with BugTrap! - 开源 & Github - 清泛网移动版 - 专注IT技能提升

...Other enhancements - Tons of features/options added since last update. See app history for details Introduction Some time ago, I was working on a multi-tier application with quite complex logic. The application was handling medical information, and it was important to correctly synchronize dat...