Raw SQL Query without DbSet - Entity Framework Core

Question

With Entity Framework Core removing dbData.Database.SqlQuery I can\'t find a solution to build a raw SQL Query for my full-text search query th

Answer 1

You can use this (from https://github.com/aspnet/EntityFrameworkCore/issues/1862#issuecomment-451671168 ) :

public static class SqlQueryExtensions
{
    public static IList SqlQuery(this DbContext db, string sql, params object[] parameters) where T : class
    {
        using (var db2 = new ContextForQueryType(db.Database.GetDbConnection()))
        {
            return db2.Query().FromSql(sql, parameters).ToList();
        }
    }

    private class ContextForQueryType : DbContext where T : class
    {
        private readonly DbConnection connection;

        public ContextForQueryType(DbConnection connection)
        {
            this.connection = connection;
        }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            // switch on the connection type name to enable support multiple providers
            // var name = con.GetType().Name;
            optionsBuilder.UseSqlServer(connection, options => options.EnableRetryOnFailure());

            base.OnConfiguring(optionsBuilder);
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            modelBuilder.Entity().HasNoKey();
            base.OnModelCreating(modelBuilder);
        }
    }
}

And the usage:

    using (var db = new Db())
    {
        var results = db.SqlQuery("select 1 id, 'joe' name");
        //or with an anonymous type like this
        var results2 = db.SqlQuery(() => new { id =1, name=""},"select 1 id, 'joe' name");
    }