Question

I am using EF5 and code first to create database. I have one string field and would like to put Index(non-unique) on it. Is it possible to create Index using Data Annotations?

Answer 1

EF doesn’t have a special way to create indices, you need to revert to an old style SQL statement.

you can use the seed method to do this

protected override void Seed(EntityMappingContext context)
{
    context.Database.ExecuteSqlCommand("CREATE INDEX IX_NAME ON TABLE (COLUMN)");
}

as described here: Adding index to a table