开发者

How to avoid joining with the same table many times in a query?

My Problem is in a table i have 4 reference of the user ID

  1. Owner ID
  2. Assigner ID
  3. Taker ID
  4. Evaluator ID
  5. Final Evaluator ID

& all these column values are FK to开发者_开发问答 User detail table where i am having there name. If i want to have there name along with their ID while retrivieng the complete row I am joining 4 times with the user details table.

Is there any better Way

Thanks


If you are using it multiple times consider creating a view - it will save some time


That is the right way to do it.

If you want to make life easier for yourself you can use an abstraction layer on top of SQL, such as LINQ to SQL. This can be set up to create the joins for you automatically based on the foreign key constraints. But if you are writing directly in SQL then you have to write the joins yourself.

0

上一篇:

下一篇:

精彩评论

暂无评论...
验证码 换一张
取 消

最新问答

问答排行榜