When implementing composite primary keys in Hibernate or other ORMs there are up to three places where to put the insertable = false, updatable = false in composite primary key constellations that use
I h开发者_如何学JAVAave a table in SQL Server 2005 with composite primary key, i.e. a foreign key (INT) and DateTime column.
Hi I am pretty new to Nhibernate and I am working on a project that is described as follow: 1 \"Parents\" table containing ParentName and a one to many ChildrenList using IList, with Primary Key set
I am getting an error \"Cannot insert explicit value for identity column in table \'table\' when IDENTITY_INSERT is set to OFF.\"开发者_开发技巧
I am a new guy in Ruby, and I have tables with these primary keys: transaction_types: transaction_type transaction_headers:
I get this error when using linq-to-sql with timestamp as part of a composite primary key: \"The primary key column of type \'Timestamp\' cannot b开发者_JAVA技巧e generated by the server.\"
Here is my problem - I have 2 tables: WORKER, with columns |ID|OTHER_STAF| , where ID is primar开发者_开发问答y key
I would like to see an example of: When this is appropriate When this is not appropriate Is there a time when the choice of da开发者_StackOverflowtabase would make a difference to the above exampl
I want to know which will be the best. I am having a table say A having col1(is a foreign key fk1),col2(is also a foreign keyfk2).
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