This question already has answers here: 开发者_JAVA百科 Closed 11 years ago. Possible Duplicate: When we need to use 1-to-1 relationship in database design?
I am not at all an expert in database design, so I will put my need in plain words before I try to translate it in CS terms: I am trying to find the right way to iterate quickly overlarge subsets (say
I am trying to create the following relation in EF4.x \"one Material is made of many Materials to a certain amount and each Material can be used in Materials\"
I have created a site using asp.net mvc3 and I have some action in my site like submitting special data, register entrance of people and ...
Quick question regarding database desi开发者_JAVA技巧gn; Given I\'m storing User data in a database, I can identify two (seemingly) separate forms of data associated with a user; account data, and pr
Systems have to sometimes accommodate the possibility of real world bad data.Consider that s开发者_如何学Goome data originates with paper forms.And forms inherently have a limited means of validating
I am on project team that is maintaining a few legacy VB6 applications. These applications are installed in over 600 customers worldwide mostly in the USA. These开发者_运维技巧 applications all connec
The problem is as follows:- I have a certain file on disk which has a huge size (say a terabyte), now I want to read say N pages (discrete and not contiguous with a huge spread) from this file on dis
This is just a design question regarding massive db design.For instance, if you were going to build a database that would hold 10 million users, how wo开发者_JAVA技巧uld you architect it?
I have two SQL tables, A and B. Each table has primary key ID. The table B has field X (which may be NULL) which refers to an ID of A (if it is not null).开发者_运维问答
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