I\'ve seen how to get a random line from a text file, but the method stated there (the accepted answer) is running horrendously slow. It runs very slowly on my 598KB text file, and still slow on my a
It you define constraint on \"id\" in parent resource: resources :fo开发者_开发百科o, constraints: { :id => /CONST/ } do
I have a problem that I have expressed a开发者_如何学Pythons the minimization of a convex quadratic program with linear constraints. The problem is that I want to disallow any point that is strictly i
I am using oracle 10gr2.I am trying to enforce a constraint on a column called \"score\" such that only fractions can be entered.
I have a few constraints (to default the value of the 开发者_高级运维column) on a table that is being updated. The update is really slow, and I was wondering if it could be the constraints fault?
Imagine MySQL table descr开发者_JAVA技巧ibing a folders in filesystem: folder_id INT, parent_folder_id INT,
I searched around and couldn\'t find any examples doing this, though this was helpful: Create Generic method constraining T to an Enum
I\'ve encountered an interesting situation experimenting with the autonomous_transaction. Consider the following situation (please note it\'s is not intended to be written this way: just proof of conc
I have an issue concerning constraints which should be generated 开发者_如何学运维dynamically from a list of variables.
I need to run an Oracle query that would violate unique constraits, only on the records that would not violate constraints.In MySQL I believe this can be do开发者_StackOverflow社区ne using the ignore
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