odp.net

When I call this code: using (var connection = new SqlConnection(connectionString)) { var command = new SqlCommand("SELECT * FROM Table", connection); connection.Open(); using (var reader = command.ExecuteReader()) { while(reader.Read()) { // Do something here } } } what happens internally? How does this work on a network level? Will it make a new round trip to database for each call to Read or is there any batch read implemented internally? I'm asking because I just read that ODP.NET provides FetchSize property in both OracleCommand and OracleDataReader which I understand as definition of how

In our .net framework 2.0 based application we were using System.Data.Oracleclient and now migrating to ODP.Net, the volume of the project is too high, so we cannot do the entire migration on one go, as a result the application is using 2 providers System.Data.Oracleclient & ODP.Net as of now. Now we are changing our OS, from Windows xp 32bit to Windows 7 64bit. While doing so we observed the following, 1) A query executes in < 1 sec using System.Data.Oracleclient & ODP.Net 10g 64bit (Oracle.DataAccess.dll version 2.102.2.20). and the same query executes in < 1 sec on Oracle SQL Developer v1.5

Could someone help me with this: The code: Role r = new Role { ID = 1, Name = "Members" }; ctx.Roles.Attach(r); //Saving User User u = new User { Login = login, Password = password, Status = 1 }; u.Roles.Add(r); ctx.Users.Add(u); ctx.SaveChanges(); What I'm trying to do is to save a new user with an existing role. User and Role classes have a many-to-many relationship mapped by fluent-api as follows: modelBuilder.Entity<User>() .HasMany(u => u.Roles) .WithMany(r => r.Users) .Map(x => { x.ToTable("USER_ROLE_XREF", dbsch); x.MapLeftKey("ID_USER"); x.MapRightKey("ID_ROLE"); }); But when the

The question is how to install ODP.NET 2.111 and ODP.NET 4.112 in the same machine side-by-side while both point to the same database server using tnsnames.ora I need to support a legacy system based on Oracle 11.1.0. The system is using ODP.NET 2.111 to connect to oracle. There are two clients installed at: C:\oracle\product\11.1.0\client_1 C:\oracle\product\11.1.0\client_2 The tnsnames.ora for both is something like this: xxxx1_SERVICE= (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = xxxx2)(PORT = xxx3)) (CONNECT_DATA = (SERVER = DEDICATED) (SID = xxx4) ) ) yyyy1_SERVICE = (DESCRIPTION =

I am getting this error when I am using ODP.net The error is appearing when I include a connection <Connection AppSettingsObjectName="Web.config" AppSettingsPropertyName="BannerCS" ConnectionStringObject="" IsAppSettingsProperty="true" Modifier="Assembly" Name="BannerCS (Web.config)" ParameterPrefix=":" PropertyReference="AppConfig.System.Configuration.ConfigurationManager.0.ConnectionStrings.BannerCS.ConnectionString" Provider="Oracle.ManagedDataAccess.Client" /> in the .XSD file in the website project I have the following connection in the web.config file <add name="BannerCS"

I'm trying to connect to my Oracle Database from my new PC. I've just installed Visual Studio and the ODAC. But when I try to do a simple connect Im getting an exception with an empty message, empty source, empty number, just with the error code which is -2147467259 . OracleConnection Prueba; Prueba = new OracleConnection("Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=XXX.XXX.XXX.XXX)(PORT=1521)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=XXXX)));User Id=XXX;Password=XXX;Pooling=true;Max Pool Size=10;Min Pool Size=1"); Prueba.Open(); Exception Details This is the