public void MultipleResultSets(TestCaseResult result)
{
DropProcedure();
ExecuteNonQuery(
"create procedure bar ()\n" +
"{\n" +
" declare i int;\n" +
" declare c char;\n" +
" result_names (i);\n" +
" result (1);\n" +
" result (2);\n" +
" end_result ();\n" +
" result_names (c);\n" +
" result ('a');\n" +
" result ('b');\n" +
" return 0;\n" +
"}\n"
);
VirtuosoCommand command = connection.CreateCommand();
command.CommandType = CommandType.StoredProcedure;
command.CommandText = "bar";
VirtuosoDataReader reader = null;
try
{
reader = command.ExecuteReader();
result.FailIfNotEqual(1, reader.FieldCount);
result.FailIfNotEqual("i", reader.GetName(0).ToLower());
result.FailIfNotEqual(typeof(int), reader.GetFieldType(0));
result.FailIfNotEqual(true, reader.Read());
result.FailIfNotEqual(1, reader["i"]);
result.FailIfNotEqual(true, reader.Read());
result.FailIfNotEqual(2, reader["i"]);
result.FailIfNotEqual(false, reader.Read());
result.FailIfNotEqual(true, reader.NextResult());
result.FailIfNotEqual(1, reader.FieldCount);
result.FailIfNotEqual("c", reader.GetName(0).ToLower());
result.FailIfNotEqual(typeof(string), reader.GetFieldType(0));
result.FailIfNotEqual(true, reader.Read());
result.FailIfNotEqual("a", reader["c"]);
result.FailIfNotEqual(true, reader.Read());
result.FailIfNotEqual("b", reader["c"]);
result.FailIfNotEqual(false, reader.NextResult());
}
finally
{
if (reader != null)
{
reader.Close();
}
command.Dispose();
}
}
private VirtuosoCommand CollectInfo()
{
if (adapter == null)
{
throw new InvalidOperationException("The DataAdapter property is not set.");
}
VirtuosoCommand selectCommand = (VirtuosoCommand)adapter.SelectCommand;
if (selectCommand == null)
{
throw new InvalidOperationException("The SelectCommand property is not set.");
}
VirtuosoConnection connection = (VirtuosoConnection)selectCommand.Connection;
if (connection == null)
{
throw new InvalidOperationException("The Connection property is not set.");
}
if (columns != null)
{
return(selectCommand);
}
bool close = false;
if (connection.State == ConnectionState.Closed)
{
connection.Open();
close = true;
}
VirtuosoDataReader reader = null;
try
{
reader = (VirtuosoDataReader)selectCommand.ExecuteReader(CommandBehavior.KeyInfo | CommandBehavior.SchemaOnly);
tableName = GetTableName(reader.Columns);
columns = reader.Columns;
}
finally
{
if (reader != null)
{
reader.Close();
}
if (close)
{
connection.Close();
}
}
return(selectCommand);
}
private void DoGetDataTest(TestCaseResult result, string text, int column,
CommandBehavior behavior, Selector selector, Sequence sequence)
{
VirtuosoCommand cmd = null;
VirtuosoDataReader dr = null;
try
{
cmd = new VirtuosoCommand(text, connection);
dr = cmd.ExecuteReader(behavior);
CheckGetData(result, dr, column, selector, sequence);
}
finally
{
if (dr != null)
{
dr.Close();
}
if (cmd != null)
{
cmd.Dispose();
}
}
}
public void ResultSetAndOutputParameters(TestCaseResult result)
{
DropProcedure();
DropProcedure();
ExecuteNonQuery(
"create procedure bar (out x integer)\n" +
"{\n" +
" declare i int;\n" +
" result_names (i);\n" +
" result (1);\n" +
" result (2);\n" +
" x := 3;\n" +
" return 4;\n" +
"}\n"
);
VirtuosoCommand command = connection.CreateCommand();
command.CommandType = CommandType.StoredProcedure;
command.CommandText = "bar";
VirtuosoParameter returnValue = command.CreateParameter();
returnValue.ParameterName = "ReturnValue";
returnValue.Direction = ParameterDirection.ReturnValue;
returnValue.VirtDbType = VirtDbType.Integer;
command.Parameters.Add(returnValue);
VirtuosoParameter x = command.CreateParameter();
x.ParameterName = "x";
x.Direction = ParameterDirection.Output;
x.VirtDbType = VirtDbType.Integer;
command.Parameters.Add(x);
VirtuosoDataReader reader = null;
bool closed = false;
try
{
reader = command.ExecuteReader();
result.FailIfNotEqual(1, reader.FieldCount);
result.FailIfNotEqual("i", reader.GetName(0).ToLower());
result.FailIfNotEqual(typeof(int), reader.GetFieldType(0));
result.FailIfNotEqual(true, reader.Read());
result.FailIfNotEqual(1, reader["i"]);
result.FailIfNotEqual(true, reader.Read());
result.FailIfNotEqual(2, reader["i"]);
result.FailIfNotEqual(false, reader.Read());
reader.Close();
closed = true;
result.FailIfNotEqual("Out Parameter", 3, x.Value);
result.FailIfNotEqual("Return Value", 4, returnValue.Value);
}
finally
{
if (reader != null && !closed)
{
reader.Close();
}
command.Dispose();
}
}
public static void DeriveParameters(VirtuosoCommand command)
{
if (command == null)
{
throw new ArgumentNullException("command");
}
if (command.CommandType != CommandType.StoredProcedure)
{
throw new InvalidOperationException("DeriveParameters supports only stored procedures.");
}
VirtuosoConnection connection = (VirtuosoConnection)command.Connection;
if (connection == null)
{
throw new InvalidOperationException("The Connection property is not set.");
}
if (connection.State == ConnectionState.Closed)
{
throw new InvalidOperationException("The connection is closed.");
}
IInnerCommand innerCommand = null;
VirtuosoDataReader reader = null;
try
{
innerCommand = connection.innerConnection.CreateInnerCommand(null);
innerCommand.GetProcedureColumns(command.CommandText);
reader = new VirtuosoDataReader(connection, innerCommand, null, CommandBehavior.Default, false);
command.Parameters.Clear();
while (reader.Read())
{
CLI.InOutType iotype = (CLI.InOutType)reader.GetInt16(reader.GetOrdinal("COLUMN_TYPE"));
ParameterDirection direction;
switch (iotype)
{
case CLI.InOutType.SQL_PARAM_INPUT:
direction = ParameterDirection.Input;
break;
case CLI.InOutType.SQL_PARAM_OUTPUT:
direction = ParameterDirection.Output;
break;
case CLI.InOutType.SQL_PARAM_INPUT_OUTPUT:
direction = ParameterDirection.InputOutput;
break;
case CLI.InOutType.SQL_PARAM_RETURN_VALUE:
direction = ParameterDirection.ReturnValue;
break;
default:
#if MONO
direction = ParameterDirection.Input;
#endif
continue;
}
string name = reader.GetString(reader.GetOrdinal("COLUMN_NAME"));
if (name == "" && iotype == CLI.InOutType.SQL_PARAM_RETURN_VALUE)
{
name = "ReturnValue";
}
CLI.SqlType sqlType = (CLI.SqlType)reader.GetInt16(reader.GetOrdinal("DATA_TYPE"));
DataType type = DataTypeInfo.MapSqlType(sqlType);
if (type == null)
{
throw new SystemException("Unknown data type");
}
int sizeOrdinal = reader.GetOrdinal("COLUMN_SIZE");
if (sizeOrdinal < 0)
{
sizeOrdinal = reader.GetOrdinal("PRECISION");
}
int size = reader.IsDBNull(sizeOrdinal) ? 0 : reader.GetInt32(sizeOrdinal);
int scaleOrdinal = reader.GetOrdinal("DECIMAL_DIGITS");
if (scaleOrdinal < 0)
{
scaleOrdinal = reader.GetOrdinal("SCALE");
}
short scale = reader.IsDBNull(scaleOrdinal) ? (short)0 : reader.GetInt16(scaleOrdinal);
int nullableOrdinal = reader.GetOrdinal("NULLABLE");
CLI.Nullable nullable = (CLI.Nullable)reader.GetInt16(nullableOrdinal);
bool isNullable = (nullable != CLI.Nullable.SQL_NO_NULLS);
VirtuosoParameter parameter = (VirtuosoParameter)command.CreateParameter();
parameter.ParameterName = name;
parameter.Direction = direction;
parameter.VirtDbType = type.vdbType;
parameter.Size = type.GetFieldSize(size);
parameter.Precision = type.GetPrecision(size);
parameter.Scale = (byte)scale;
parameter.IsNullable = isNullable;
command.Parameters.Add(parameter);
}
}
finally
{
if (reader != null)
{
reader.Close();
}
if (innerCommand != null)
{
innerCommand.Dispose();
}
}
}