I am building a service which provides a newsletter system for the users. My question is, how to organize it on the database? user opens account -> there is a news row on the data base -> how the ema
We are at the beginning of a new project, and we are really wondering if we should use stored procedures in MySQL or not.
I know I can setup a FK constraint to make sure Table1.ColA exists in Table2.Key, however what if I want t开发者_如何学JAVAo do the reverse?
Is it possible to do a query like the following? I would like to do this in place of a stored procedure if possible.
I just learned about SQL views, which seem nice, but if I abstract table joining to a data 开发者_开发问答access class, wouldn\'t this accomplish the same thing?What are your thoughts on this?I\'ve ne
Primary key in relational tables. Composite primary key or unique primary key in those pure relational tables?
I\'m trying to model a self-referencing Many-to-Many relationship between Employees and Managers using EF code first (where manag开发者_开发百科ers are employees). On top of keeping track of which man
This query goes against a single table. The table has 60 attributes called \"attribute1\" through \"attribute60\", and they are all of type:
Using the code first method in Entity, is it possible to establish multiple relationships tied to a single foreign key?
I\'ve created a table called comments, comments has a property called ItemId which is used as the foreign key for two other tables posts and apps.
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