Is it possi开发者_Go百科ble to represent a SQL Relational Database in XML? That is, how would XML handle the primary key -> foriegn key relationships?
I have previously done: ALTER TABLE `cms__model__file_taggable_tag` ADD CONSTRAINT cms__model__file_taggable_tag_id_cms__model__file_id FOREIGN KEY (id) REFERENCES
If I have the following relations Articles articleId(PK) title content date And say my enterprise constraint is:
I have the following scenario: @Entity class A { @Id @GeneratedValue private long dbId; @OneToMany ( cascade = CascadeType.ALL )
Really hate to use other people\'s time, but it seems the problem is just not going away. I considered all recommendations at http://verysimple.com/2006/10/22/mysql-error-number-1005-cant-create-tabl
I wrote a very simple class taking a generic parameter, say T. Now, I want to enforce that T can be only one of my custom types ClassA, ClassB and ClassC, so that I cannot mistakenly use it with meani
Is it possible to s开发者_开发百科pecify a constraint on a generic class thatdisallows certain types?I don\'t know if it is possible and if it is, I am not sure what the syntax would be.Something like
We are currently using Visual Studio 2010 and have a Database project that contains all of our database objects.We typically deploy the database via a build script to our CI, QA and UAT environments.F
This question is comparable to this one, but I ask it again because the answer provided does not solve the issue, and as the person asking that question concludes: it might be a bug in Rails (but no f
Given a generic tree based (Java) data model. Let\'s say abstract class XModel { long id; XModel parent;
加载中,请稍侯......