There are products with a name and price. Users log about products they have bought. # option 1: embed logs
I am working 开发者_开发百科through an example from MSDN that uses a small database to demonstrate data driven testing, and here is the simple schema:
How can I create a production database in Rails 3 and load a schema to it? I tr开发者_JAVA技巧ied the following approaches...
In designing RDBM开发者_如何转开发S schema, I wonder if there is formal principle of concrete objects: for example, if it is Persons table, then each record is very concrete and unique.Each record in
I have the migration file db\\migrate\\20100905201547_create_blocks.rb. How can I spec开发者_StackOverflow中文版ifically rollback that migration file?rake db:rollback STEP=1
I like Rails, but I\'m not a big fan of migrations. How can I use the ActiveRecord::Scema tool to create a database without using SQL and without migrations?
I\'m just looking for a simple query to select all the table names for a given schema. F开发者_如何学Pythonor example, our DB has over 100 tables and I need to find any table that contains the sub-st
Diagrams created with Microsoft SQL Server Management Studio开发者_如何学JAVA have their default schema set to dbo. It seems that there is no way to set another schema when creating a diagram.
I want to clone my existing oracle database structure without data including packages, users, tablespaces etc. I read some methods but they all copied data as well. Is there a开发者_C百科nyway out in
Let\'s say I want to (using V开发者_如何学运维isual Studio) run a schema comparison between two databases, restore one of them from a backup, and run the schema comparison again. The schema comparison
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