Here is my code
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using(OracleConnection conn = new OracleConnection(connectionString))
{
OracleCommand command = conn.CreateCommand();
command.CommandText = sql;
conn.Open();
int aff = command.ExecuteNonQuery();
}
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Data Source=MyDbServer;Port=1521;SID=ORCL;Direct=true;User Id=system;Password=myPassword;
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at Devart.Data.Oracle.DirectUtils.a(Int32 A_0)
at Devart.Data.Oracle.br.a(String A_0, Int32 A_1, String A_2)
at Devart.Data.Oracle.y.a(t A_0, av A_1)
at Devart.Data.Oracle.OracleInternalConnection..ctor(t connectionOptions, OracleInternalConnection proxyConnection)
at Devart.Data.Oracle.b0.a(l A_0, Object A_1, DbConnectionBase A_2)
at Devart.Common.DbConnectionFactory.a(DbConnectionPool A_0, l A_1, DbConnectionBase A_2)
at Devart.Common.DbConnectionPoolGroup.a(DbConnectionPool A_0, DbConnectionBase A_1)
at Devart.Common.DbConnectionPool.a(DbConnectionBase A_0)
at Devart.Common.DbConnectionPool.GetObject(DbConnectionBase owningConnection)
at Devart.Common.DbConnectionFactory.a(DbConnectionBase A_0)
at Devart.Common.DbConnectionClosed.Open(DbConnectionBase outerConnection)
at Devart.Common.DbConnectionBase.Open()
at Devart.Data.Oracle.OracleConnection.Open()
at xxx..OracleAdminRepository.ExecuteNonQuery(String sql, String connectionString) in D:\xxx.DAL\OracleAdminRepository.cs:line 223
at xxx.OracleAdminRepository.CanMakeOracleConnection(String server, Int32 port, String SID, String user, String password, OracleUserConnectionMode connectionMode) in D:\xxx.OracleAdminRepository.cs:line 200