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Results tagged with orm
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user 247
Object-relational mapping is a programming technique that allows applications to work with the data as objects, but store the data in a database as groups of simpler values.
18
votes
When using an ORM, what are some things to watch out for in your database design
- How can I override the ORM and write my own query?
- Can I use stored procs instead?
The database should be ORM agnostic since, more than likely, it will outlast the app. …
5
votes
How does NHibernate handle execution plan?
ORMs aren't usually the problem themselves, it's how they're used. SQL Server generates the execution plan. NHibernate can generate a query that causes SQL to generate a bad execution plan. If you use …
1
vote
Why does this Entity Framework query perform so bad in MySQL?
I know LINQ queries are composable, but have you tried playing with the order of LINQ operations to see if it could affect the query generator? This question may be better served over on Stack Overflo …
10
votes
Is the ADO.NET Entity Framework known for generating poorly performing queries?
It depends on what the queries are. ORMs are usually really good at CRUD, as they are usually simple. The more complex the query, the greater the chance of a bad query. You can tweak the generated que …