public void PqsqlTypeRegistryTest1()
{
PqsqlTransaction tran = mConnection.BeginTransaction();
string old_tz = mConnection.TimeZone;
mCmd.CommandText = "set timezone to 'Asia/Hong_Kong';" +
"select localtimestamp, now(), now() at time zone 'Europe/Vienna', '2016-10-01 12:00:00' at time zone 'UTC', '2016-10-01 12:00:00' at time zone 'Europe/Vienna', utc_offset from pg_timezone_names where name = current_setting('TIMEZONE');";
mCmd.CommandType = CommandType.Text;
PqsqlDataReader reader = mCmd.ExecuteReader();
bool read = reader.Read();
Assert.IsFalse(read);
string new_tz = mConnection.TimeZone;
Assert.AreNotEqual(old_tz, new_tz);
bool hasnext = reader.NextResult();
Assert.IsTrue(hasnext);
read = reader.Read();
Assert.IsTrue(read);
DateTime now0 = reader.GetDateTime(0);
DateTime now1 = reader.GetDateTime(1);
DateTime now2 = reader.GetDateTime(2);
DateTime now3 = reader.GetDateTime(3);
DateTime now4 = reader.GetDateTime(4);
TimeSpan ts = reader.GetTimeSpan(5);
reader.Close();
DateTime nowutc0 = now0.ToUniversalTime();
TimeZoneInfo tzi_from_china_pgsql = TimeZoneInfo.CreateCustomTimeZone(new_tz, ts, new_tz, new_tz);
#if WIN32
var tz = "China Standard Time";
#else
var tz = "Asia/Shanghai";
#endif
TimeZoneInfo tzi_from_china_sys = TimeZoneInfo.FindSystemTimeZoneById(tz);
TimeSpan china_off = tzi_from_china_sys.GetUtcOffset(nowutc0);
TimeSpan local_off = TimeZoneInfo.Local.GetUtcOffset(nowutc0);
DateTimeOffset nowlocal0 = (nowutc0 + local_off - china_off).ToLocalTime();
DateTimeOffset dto_from_pgsql_to_sys = TimeZoneInfo.ConvertTime(now0, tzi_from_china_pgsql, tzi_from_china_sys);
DateTimeOffset dto_from_pgsql_to_localtime = TimeZoneInfo.ConvertTime(now0, tzi_from_china_pgsql, TimeZoneInfo.Local);
Assert.AreEqual(nowutc0, dto_from_pgsql_to_sys);
Assert.AreEqual(nowlocal0, dto_from_pgsql_to_localtime);
tran.Rollback();
}
public void PqsqlCopyFromTest1()
{
PqsqlTransaction tran = mConnection.BeginTransaction();
mCmd.Transaction = tran;
mCmd.CommandText = "create temporary table foo ( a int2, b int4, c int8 )";
mCmd.CommandType = CommandType.Text;
int affected = mCmd.ExecuteNonQuery();
Assert.AreEqual(0, affected);
PqsqlCopyFrom copy = new PqsqlCopyFrom(mConnection)
{
Table = "foo",
ColumnList = "c,a,b",
CopyTimeout = 10
};
copy.Start();
for (short i = 9; i >= 0; i--)
{
copy.WriteInt8(i);
copy.WriteInt2(i);
copy.WriteInt4(i);
}
copy.End();
copy.Close();
mCmd.CommandText = "foo";
mCmd.CommandType = CommandType.TableDirect;
int value = 9;
foreach (IDataRecord rec in mCmd.ExecuteReader())
{
object[] o = new object[3];
rec.GetValues(o);
Assert.IsInstanceOfType(o[0], typeof(short));
Assert.AreEqual((short)value, o[0]);
Assert.IsInstanceOfType(o[1], typeof(int));
Assert.AreEqual(value, o[1]);
Assert.IsInstanceOfType(o[2], typeof(long));
Assert.AreEqual((long)value, o[2]);
value--;
}
Assert.AreEqual(-1, value);
tran.Rollback();
}
public void PqsqlCommandTest2()
{
PqsqlCommand cmd = mConnection.CreateCommand();
cmd.CommandText = "bit_length";
cmd.CommandType = CommandType.StoredProcedure;
IDbDataParameter i = cmd.CreateParameter();
i.ParameterName = "i";
i.Value = "postgres";
cmd.Parameters.Add(i);
IDbDataParameter o = cmd.CreateParameter();
o.ParameterName = "bit_length";
o.Direction = ParameterDirection.Output;
cmd.Parameters.Add(o);
PqsqlDataReader r = cmd.ExecuteReader();
bool b = r.Read();
Assert.AreEqual(true, b);
Assert.AreEqual(64, o.Value);
}
public void PqsqlTypeRegistryTest6()
{
Action[] actions = new Action[20];
// stress test user-defined type setup
for (int i = 0; i < 20; i++)
{
actions[i] = () =>
{
using (PqsqlConnection conn = new PqsqlConnection(mConnection.ConnectionString))
using (PqsqlCommand cmd = new PqsqlCommand("select 'hello world'::citext", conn))
using (PqsqlDataReader reader = cmd.ExecuteReader())
{
bool read = reader.Read();
Assert.IsTrue(read);
object helloWorld = reader.GetValue(0); // must access by GetValue, GetString verifies typoid
Assert.AreEqual("hello world", helloWorld);
read = reader.Read();
Assert.IsFalse(read);
}
};
}
using (PqsqlCommand check = new PqsqlCommand("select oid from pg_extension where extname='citext'", mConnection))
using (PqsqlCommand create = new PqsqlCommand("create extension citext", mConnection))
using (PqsqlTransaction t = mConnection.BeginTransaction())
{
object o = null;
try
{
check.Transaction = t;
o = check.ExecuteScalar();
if (o == null)
{
create.Transaction = t;
int aff = create.ExecuteNonQuery();
Assert.AreEqual(0, aff);
}
t.Commit();
Parallel.Invoke(actions);
}
finally
{
if (o == null)
{
using (PqsqlCommand drop = new PqsqlCommand("drop extension if exists citext", mConnection))
{
int aff = drop.ExecuteNonQuery();
Assert.AreEqual(0, aff);
}
}
}
}
}
public void PqsqlCommandBuilderTest2()
{
using (PqsqlConnection connection = new PqsqlConnection(connectionString))
using (PqsqlCommand command = connection.CreateCommand())
{
PqsqlTransaction transaction = connection.BeginTransaction();
command.Transaction = transaction;
command.CommandText = "create temp table temptab (c0 int4 primary key, c1 float8)";
command.CommandType = CommandType.Text;
command.ExecuteNonQuery();
transaction.Commit(); // temp table must be visible in the next transaction
transaction = connection.BeginTransaction();
PqsqlDataAdapter adapter = new PqsqlDataAdapter("select * from temptab", connection)
{
SelectCommand =
{
Transaction = transaction
},
};
adapter.RowUpdated += Adapter_RowUpdated;
PqsqlCommandBuilder builder = new PqsqlCommandBuilder(adapter);
DataSet ds = new DataSet();
adapter.FillSchema(ds, SchemaType.Source);
adapter.Fill(ds, "temptab");
DataTable temptab = ds.Tables["temptab"];
DataRow row = temptab.NewRow();
row["c0"] = 123;
row["c1"] = 1.23;
temptab.Rows.Add(row);
adapter.Update(ds, "temptab");
command.CommandText = "select * from temptab";
command.CommandType = CommandType.Text;
using (PqsqlDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
Assert.AreEqual(123, reader.GetInt32(0));
Assert.AreEqual(1.23, reader.GetDouble(1));
}
}
transaction.Rollback();
}
}
public void PqsqlConnectionStringBuilderTest1()
{
PqsqlConnectionStringBuilder builder = new PqsqlConnectionStringBuilder(connectionString);
builder[PqsqlConnectionStringBuilder.keepalives] = "1";
builder[PqsqlConnectionStringBuilder.keepalives_idle] = "23";
builder[PqsqlConnectionStringBuilder.keepalives_count] = "3";
builder[PqsqlConnectionStringBuilder.keepalives_interval] = "3";
string dataSource;
using (PqsqlConnection connection = new PqsqlConnection(builder))
{
// closed connection with service file should give us empty data source
Assert.IsTrue(string.IsNullOrEmpty(connection.DataSource));
using (PqsqlCommand cmd = new PqsqlCommand("show all", connection))
using (PqsqlDataReader r = cmd.ExecuteReader())
{
object value;
if (builder.TryGetValue(PqsqlConnectionStringBuilder.host, out value))
{
Assert.AreEqual(connection.DataSource, value);
dataSource = value.ToString();
}
else // no datasource specified
{
dataSource = connection.DataSource;
}
cmd.Cancel();
}
}
builder[PqsqlConnectionStringBuilder.host] = dataSource;
using (PqsqlConnection connection = new PqsqlConnection(builder))
using (PqsqlCommand cmd = new PqsqlCommand("show all", connection))
using (PqsqlDataReader r = cmd.ExecuteReader())
{
object value;
if (builder.TryGetValue(PqsqlConnectionStringBuilder.host, out value))
{
Assert.AreEqual(connection.DataSource, value);
}
else
{
Assert.Fail("host part is not available");
}
cmd.Cancel();
}
}
public void PqsqlCommandTest19()
{
using (PqsqlCommand cmd =
new PqsqlCommand("select state from pg_stat_activity -- no semicolon", mConnection)
{
CommandType = CommandType.Text
})
{
PqsqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
string s = !r.IsDBNull(0) ? r.GetString(0) : null;
}
}
}
public void PqsqlCommandTest17()
{
using (PqsqlCommand cmd =
new PqsqlCommand("select /*state*/'x' from /* xxx */ pg_stat_activity ", mConnection)
{
CommandType = CommandType.Text
})
{
PqsqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
string s = !r.IsDBNull(0) ? r.GetString(0) : null;
}
}
}
public void PqsqlCommandTest13()
{
PqsqlCommand cmd = new PqsqlCommand("select :貓1;", mConnection)
{
CommandType = CommandType.Text
};
// add non-standard parametername
cmd.Parameters.AddWithValue(":貓1", "喵");
using (PqsqlDataReader r = cmd.ExecuteReader())
{
Assert.Fail("ExecuteReader() must fail");
}
}
public void PqsqlCommandTest1()
{
PqsqlCommand cmd = mConnection.CreateCommand();
cmd.CommandText = "select pg_sleep(1);";
PqsqlDataReader r = cmd.ExecuteReader();
bool b = r.Read();
Assert.AreEqual(true, b);
object v = r.GetValue(0);
Assert.AreEqual("", v);
}
public void PqsqlCommandTest11()
{
PqsqlCommand cmd = new PqsqlCommand("select :p1;", mConnection);
cmd.CommandType = CommandType.Text;
// recursive parameters
PqsqlParameter p1 = cmd.Parameters.AddWithValue(":p1", ":p1");
PqsqlDataReader r = cmd.ExecuteReader();
while (r.Read())
{
string s = r.GetString(0);
Assert.AreEqual(p1.Value, s);
}
}
public void PqsqlCommandTest12()
{
PqsqlCommand cmd = new PqsqlCommand("select :p1;", mConnection)
{
CommandType = CommandType.Text,
Parameters =
{
// do not add parameter :p1, add p0 and p2 instead
new PqsqlParameter(":p0", DbType.String, "p0value"),
new PqsqlParameter(":p2", DbType.String, "p2value")
}
};
using (PqsqlDataReader r = cmd.ExecuteReader())
{
Assert.Fail("ExecuteReader() must fail");
}
}
public void PqsqlCommandTest5()
{
PqsqlCommand cmd = mConnection.CreateCommand();
cmd.CommandText = "pg_authid";
cmd.CommandTimeout = 10;
cmd.CommandType = CommandType.TableDirect;
var r = cmd.ExecuteReader();
foreach (var o in r)
{
Assert.IsNotNull(o);
}
cmd.Cancel();
mConnection.Close();
mConnection.Open();
}
public void PqsqlCommandTest4()
{
PqsqlCommand cmd = new PqsqlCommand("generate_series", mConnection);
const int p1_val = -1;
const int p2_val = 2;
PqsqlParameter p1 = cmd.CreateParameter();
p1.ParameterName = "p1";
p1.Value = p1_val;
p1.DbType = DbType.Int32;
PqsqlParameter p2 = cmd.CreateParameter();
p2.ParameterName = "p2";
p2.Value = p2_val;
p2.DbType = DbType.Int32;
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
cmd.Parameters.Add(new PqsqlParameter("generate_series", DbType.Int32)
{
Direction = ParameterDirection.Output
});
PqsqlDataReader r = cmd.ExecuteReader();
int n = p1_val - 1;
int j = p1_val;
while (r.Read())
{
int i = r.GetInt32(0);
Assert.AreEqual(j++, i);
n++;
}
Assert.AreEqual(p2_val, n);
}
public void PqsqlCommandTest3()
{
PqsqlCommand cmd = mConnection.CreateCommand();
cmd.CommandText = "upper";
cmd.CommandType = CommandType.StoredProcedure;
IDbDataParameter i = cmd.CreateParameter();
i.ParameterName = "i";
i.Value = "upper";
cmd.Parameters.Add(i);
IDbDataParameter o = cmd.CreateParameter();
o.ParameterName = "output_parametername_does_not_exist";
o.Direction = ParameterDirection.Output;
cmd.Parameters.Add(o);
cmd.ExecuteReader();
Assert.Fail();
}
public void PqsqlCommandTest10()
{
StringBuilder sb = new StringBuilder();
const int N = 1664; // postgres can handle at most 1664 columns in a select
const int K = 5; // create K*(K+1) / 2 queries
PqsqlParameter[] pars = new PqsqlParameter[0];
for (int k = 1; k <= K; k++)
{
if (k > 1)
{
sb.Append(';');
}
sb.Append("select ");
Array.Resize(ref pars, k * N);
using (PqsqlTransaction t = mConnection.BeginTransaction())
{
for (int i = 1; i <= N; i++)
{
int j = (k - 1) * N + i - 1;
if (i > 1)
{
sb.Append(',');
}
sb.Append("generate_series(:p" + j + ",:p" + j + ")");
PqsqlParameter p = new PqsqlParameter
{
ParameterName = "p" + j,
DbType = DbType.Int32,
Value = j
};
pars[j] = p;
}
sb.Append(';');
using (PqsqlCommand cmd = mConnection.CreateCommand())
{
cmd.Transaction = t;
cmd.CommandText = sb.ToString();
cmd.CommandTimeout = 20;
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddRange(pars.Take(k * N).ToArray());
using (PqsqlDataReader reader = cmd.ExecuteReader())
{
for (int n = 0; n < k; n++)
{
while (reader.Read())
{
for (int m = 0; m < N; m++)
{
int o = reader.GetInt32(m);
Assert.AreEqual(n * N + m, o);
}
}
reader.NextResult();
}
}
}
}
}
}
public void PqsqlDataReaderTest1()
{
// TODO we don't support xid and inet datatypes yet
mCmd.CommandText = "select datid,datname,pid,application_name,backend_start,query from pg_stat_activity";
PqsqlDataReader reader = mCmd.ExecuteReader();
Assert.AreEqual(false, reader.IsClosed);
Assert.AreEqual(6, reader.FieldCount);
DataTable dt = reader.GetSchemaTable();
Assert.AreNotEqual(null, dt);
Assert.AreEqual(6, dt.Rows.Count);
Assert.AreEqual("datid", dt.Rows[0][SchemaTableColumn.ColumnName]);
Assert.AreEqual(1, dt.Rows[0][SchemaTableColumn.ColumnOrdinal]);
Assert.AreEqual("datname", dt.Rows[1][SchemaTableColumn.ColumnName]);
Assert.AreEqual(2, dt.Rows[1][SchemaTableColumn.ColumnOrdinal]);
Assert.AreEqual("pid", dt.Rows[2][SchemaTableColumn.ColumnName]);
Assert.AreEqual(3, dt.Rows[2][SchemaTableColumn.ColumnOrdinal]);
Assert.AreEqual("application_name", dt.Rows[3][SchemaTableColumn.ColumnName]);
Assert.AreEqual(4, dt.Rows[3][SchemaTableColumn.ColumnOrdinal]);
Assert.AreEqual("backend_start", dt.Rows[4][SchemaTableColumn.ColumnName]);
Assert.AreEqual(5, dt.Rows[4][SchemaTableColumn.ColumnOrdinal]);
Assert.AreEqual("query", dt.Rows[5][SchemaTableColumn.ColumnName]);
Assert.AreEqual(6, dt.Rows[5][SchemaTableColumn.ColumnOrdinal]);
reader.Close();
Assert.AreEqual(ConnectionState.Open, mConnection.State);
Assert.AreEqual(true, reader.IsClosed);
}
public void PqsqlCopyFromTest3()
{
PqsqlTransaction t = mConnection.BeginTransaction();
PqsqlCommand cmd = mConnection.CreateCommand();
cmd.Transaction = t;
cmd.CommandText = "CREATE TEMP TABLE testcopy (c0 int2, c1 int4, c2 int8, c3 bool, c4 text, c5 float4, c6 float8, c7 timestamp, c8 interval, c9 numeric, c10 date, c11 time, c12 timetz);";
cmd.CommandTimeout = 100;
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
PqsqlCopyFrom copy = new PqsqlCopyFrom(mConnection)
{
Table = "testcopy",
ColumnList = "c0,c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12",
CopyTimeout = 5
};
copy.Start();
DateTime now = new DateTime(2001, 1, 1, 1, 2, 3, DateTimeKind.Utc);
DateTime date = DateTime.UtcNow.Date;
TimeSpan time = DateTime.UtcNow.TimeOfDay;
long timeTicks = time.Ticks;
timeTicks = timeTicks - timeTicks % TimeSpan.TicksPerMillisecond;
TimeSpan timetz = DateTime.Now.TimeOfDay;
long timetzTicks = timetz.Ticks;
timetzTicks = timetzTicks - timetzTicks % TimeSpan.TicksPerMillisecond;
for (int i = 0; i < 4; i++)
{
copy.WriteInt2((short)i);
copy.WriteInt4(i);
copy.WriteInt8(i);
copy.WriteBool(i > 0);
copy.WriteText(Convert.ToString(i));
copy.WriteFloat4((float)(i + 0.123));
copy.WriteFloat8(i + 0.123);
copy.WriteTimestamp(now.AddSeconds(i));
copy.WriteInterval(TimeSpan.FromHours(24) + TimeSpan.FromDays(7) + TimeSpan.FromMinutes(i));
copy.WriteNumeric((decimal)i / 10);
copy.WriteDate(date);
copy.WriteTime(time);
copy.WriteTimeTZ(timetz);
}
copy.End();
copy.Close();
cmd.Transaction = t;
cmd.CommandText = "testcopy";
cmd.CommandType = CommandType.TableDirect;
PqsqlDataReader r = cmd.ExecuteReader();
Assert.AreEqual(-1, r.RecordsAffected);
int j = 0;
foreach (IDataRecord row in r)
{
Assert.AreEqual((short)j, row.GetInt16(0));
Assert.AreEqual(j, row.GetInt32(1));
Assert.AreEqual(j, row.GetInt64(2));
Assert.AreEqual(j > 0, row.GetBoolean(3));
Assert.AreEqual(Convert.ToString(j), row.GetString(4));
Assert.AreEqual((float)(j + 0.123), row.GetFloat(5));
Assert.AreEqual(j + 0.123, row.GetDouble(6));
Assert.AreEqual(now.AddSeconds(j), row.GetDateTime(7));
Assert.AreEqual(TimeSpan.FromHours(24) + TimeSpan.FromDays(7) + TimeSpan.FromMinutes(j), row.GetValue(8));
Assert.AreEqual((double)j / 10, row.GetValue(9));
Assert.AreEqual(date, row.GetValue(10));
TimeSpan c11 = (TimeSpan)row.GetValue(11);
long c11Ticks = c11.Ticks;
c11Ticks = c11Ticks - c11Ticks % TimeSpan.TicksPerMillisecond;
Assert.AreEqual(timeTicks, c11Ticks);
TimeSpan c12 = (TimeSpan)row.GetValue(12);
long c12Ticks = c12.Ticks;
c12Ticks = c12Ticks - c12Ticks % TimeSpan.TicksPerMillisecond;
Assert.AreEqual(timetzTicks, c12Ticks);
j++;
}
t.Rollback();
}
public void PqsqlCommandTest9()
{
PqsqlTransaction t = mConnection.BeginTransaction();
PqsqlCommand cmd = mConnection.CreateCommand();
cmd.Transaction = t;
cmd.CommandText = @"create or replace function ""pg_temp"".""test me""(i int) returns int as $code$ begin return $1 * i; end; $code$ language plpgsql;
select ""pg_temp"".""test me""(:p1);
select ""pg_temp"".""test me""($1)" ;
cmd.CommandTimeout = 2;
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddWithValue("p1", 4711);
using (PqsqlDataReader r = cmd.ExecuteReader())
{
bool good = r.Read();
Assert.IsFalse(good);
good = r.NextResult();
Assert.IsTrue(good);
good = r.Read();
Assert.IsTrue(good);
int n = r.GetInt32(0);
Assert.AreEqual(4711 * 4711, n);
good = r.Read();
Assert.IsFalse(good);
good = r.NextResult();
Assert.IsTrue(good);
good = r.Read();
Assert.IsTrue(good);
n = r.GetInt32(0);
Assert.AreEqual(4711 * 4711, n);
good = r.Read();
Assert.IsFalse(good);
}
cmd.CommandText = "\"pg_temp\".\"test me\"";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Clear();
cmd.Parameters.AddWithValue("i", 4711);
cmd.Parameters.Add(new PqsqlParameter
{
ParameterName = "\"pg_temp\".\"test me\"",
DbType = DbType.Int32,
Direction = ParameterDirection.Output
});
object x = cmd.ExecuteScalar();
Assert.AreEqual(4711 * 4711, x);
t.Rollback();
}
public void PqsqlCommandTest6()
{
PqsqlTransaction t = mConnection.BeginTransaction();
PqsqlCommand cmd = mConnection.CreateCommand();
cmd.Transaction = t;
cmd.CommandText = "create or replace function pg_temp.test_out(p1 out text, i1 inout int, p2 out int, r inout refcursor) as $$begin $1 := 'p1 text'; $2:=$2*-4711; $3:=12345; open r for select * from ( values (1,2,3),(4,5,6),(7,8,9) ) X; end;$$ LANGUAGE plpgsql;";
cmd.CommandTimeout = 10;
cmd.CommandType = CommandType.Text;
int n = cmd.ExecuteNonQuery();
Assert.AreEqual(0, n);
PqsqlParameter p1 = new PqsqlParameter("p1", DbType.String)
{
Direction = ParameterDirection.Output,
Value = "p1_val"
};
const int p2_val = 4711;
PqsqlParameter p2 = new PqsqlParameter("i1", DbType.Int32, (object)p2_val)
{
Direction = ParameterDirection.InputOutput,
};
PqsqlParameter p3 = new PqsqlParameter("p2", DbType.Int32)
{
Direction = ParameterDirection.Output,
Value = 42
};
const string p4_val = "portal_name";
PqsqlParameter p4 = new PqsqlParameter
{
ParameterName = "r",
PqsqlDbType = PqsqlDbType.Refcursor,
Direction = ParameterDirection.InputOutput,
Value = p4_val
};
cmd.CommandText = "pg_temp.test_out";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(p1);
cmd.Parameters.Add(p2);
cmd.Parameters.Add(p3);
cmd.Parameters.Add(p4);
n = cmd.ExecuteNonQuery();
Assert.AreEqual(-1, n);
Assert.AreEqual("p1 text", p1.Value);
Assert.AreEqual(p2_val * -p2_val, p2.Value);
Assert.AreEqual(12345, p3.Value);
Assert.AreEqual(p4_val, p4.Value);
cmd.CommandText = string.Format("fetch all from {0}", p4.Value);
cmd.CommandType = CommandType.Text;
PqsqlDataReader r = cmd.ExecuteReader();
int i = 1;
while (r.Read())
{
Assert.AreEqual(i++, r.GetValue(0));
Assert.AreEqual(i++, r.GetValue(1));
Assert.AreEqual(i++, r.GetValue(2));
}
t.Rollback();
}