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/* PostgresTest.cs - based on the postgres-test.c in libgda
*
* Copyright (C) 2002 Gonzalo Paniagua Javier
* Copyright (C) 2002 Daniel Morgan
*
* ORIGINAL AUTHOR:
* Gonzalo Paniagua Javier <gonzalo@gnome-db.org>
* PORTING FROM C TO C# AUTHOR:
* Daniel Morgan <danmorg@sc.rr.com>
*
* Permission was given from the original author, Gonzalo Paniagua Javier,
* to port and include his original work in Mono.
*
* The original work falls under the LGPL, but the port to C# falls
* under the X11 license.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; see the file COPYING. If not,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
using System;
using System.Data;
using System.Data.SqlClient;
namespace TestSystemDataSqlClient {
class PostgresTest {
static void CreateTable (IDbConnection cnc) {
IDbCommand createCommand = cnc.CreateCommand();
createCommand.CommandText =
"create table mono_postgres_test (" +
"boolean_value boolean, " +
"int2_value smallint, " +
"int4_value integer, " +
"bigint_value bigint, " +
"float_value real, " +
"double_value double precision, " +
"numeric_value numeric(15, 3), " +
"char_value char(50), " +
"varchar_value varchar(20), " +
"text_value text, " +
"point_value point, " +
"time_value time, " +
"date_value date, " +
"timestamp_value timestamp, " +
"null_boolean_value boolean, " +
"null_int2_value smallint, " +
"null_int4_value integer, " +
"null_bigint_value bigint, " +
"null_float_value real, " +
"null_double_value double precision, " +
"null_numeric_value numeric(15, 3), " +
"null_char_value char(50), " +
"null_varchar_value varchar(20), " +
"null_text_value text, " +
"null_point_value point, " +
"null_time_value time, " +
"null_date_value date, " +
"null_timestamp_value timestamp " +
")";
createCommand.ExecuteNonQuery ();
}
static void DropTable (IDbConnection cnc) {
IDbCommand dropCommand = cnc.CreateCommand ();
dropCommand.CommandText =
"drop table mono_postgres_test";
dropCommand.ExecuteNonQuery ();
}
static void InsertData (IDbConnection cnc) {
IDbCommand insertCommand = cnc.CreateCommand();
insertCommand.CommandText =
"insert into mono_postgres_test (" +
"boolean_value, " +
"int2_value, " +
"int4_value, " +
"bigint_value, " +
"float_value, " +
"double_value, " +
"numeric_value, " +
"char_value, " +
"varchar_value, " +
"text_value, " +
"time_value, " +
"date_value, " +
"timestamp_value, " +
"point_value " +
") values (" +
"'T', " +
"-22, " +
"1048000, " +
"123456789012345, " +
"3.141592, " +
"3.1415926969696, " +
"123456789012.345, " +
"'This is a char', " +
"'This is a varchar', " +
"'This is a text', " +
"'21:13:14', " +
"'2000-02-29', " +
"'2004-02-29 14:00:11.31', " +
"'(1,0)' " +
")";
insertCommand.ExecuteNonQuery ();
}
static IDataReader SelectData (IDbConnection cnc) {
IDbCommand selectCommand = cnc.CreateCommand();
IDataReader reader;
// FIXME: System.Data classes need to handle NULLs
// FIXME: System.Data needs to handle more data types
/*
selectCommand.CommandText =
"select * " +
"from mono_postgres_test";
*/
selectCommand.CommandText =
"select " +
"boolean_value, " +
"int2_value, " +
"int4_value, " +
"bigint_value, " +
"float_value, " +
"double_value, " +
"numeric_value, " +
"char_value, " +
"varchar_value, " +
"text_value, " +
"point_value, " +
"time_value, " +
"date_value, " +
"timestamp_value, " +
"null_boolean_value, " +
"null_int2_value, " +
"null_int4_value, " +
"null_bigint_value, " +
"null_float_value, " +
"null_double_value, " +
"null_numeric_value, " +
"null_char_value, " +
"null_varchar_value, " +
"null_text_value, " +
"null_point_value, " +
"null_time_value, " +
"null_date_value, " +
"null_timestamp_value " +
"from mono_postgres_test";
reader = selectCommand.ExecuteReader ();
return reader;
}
static void UpdateData (IDbConnection cnc) {
IDbCommand updateCommand = cnc.CreateCommand();
updateCommand.CommandText =
"update mono_postgres_test " +
"set " +
"boolean_value = 'F', " +
"int2_value = 5, " +
"int4_value = 3, " +
"bigint_value = 9, " +
"char_value = 'Mono.Data!' , " +
"varchar_value = 'It was not me!', " +
"text_value = 'We got data!' " +
"where int2_value = -22";
updateCommand.ExecuteNonQuery ();
}
// used to do a min(), max(), count(), sum(), or avg()
static object SelectAggregate (IDbConnection cnc, String agg) {
IDbCommand selectCommand = cnc.CreateCommand();
object data;
Console.WriteLine("Aggregate: " + agg);
selectCommand.CommandText =
"select " + agg +
"from mono_postgres_test";
data = selectCommand.ExecuteScalar ();
Console.WriteLine("Agg Result: " + data);
return data;
}
/* Postgres provider tests */
static void DoPostgresTest (IDbConnection cnc) {
IDataReader reader;
Object oDataValue;
Console.WriteLine ("\tPostgres provider specific tests...\n");
/* Drops the gda_postgres_test table. */
Console.WriteLine ("\t\tDrop table: ");
try {
DropTable (cnc);
Console.WriteLine ("OK");
}
catch (SqlException e) {
Console.WriteLine("Error (don't worry about this one)" + e);
}
try {
/* Creates a table with all supported data types */
Console.WriteLine ("\t\tCreate table with all supported types: ");
CreateTable (cnc);
Console.WriteLine ("OK");
/* Inserts values */
Console.WriteLine ("\t\tInsert values for all known types: ");
InsertData (cnc);
Console.WriteLine ("OK");
/* Update values */
Console.WriteLine ("\t\tUpdate values: ");
UpdateData (cnc);
Console.WriteLine ("OK");
/* Inserts values */
Console.WriteLine ("\t\tInsert values for all known types: ");
InsertData (cnc);
Console.WriteLine ("OK");
/* Select aggregates */
SelectAggregate (cnc, "count(*)");
//SelectAggregate (cnc, "avg(int4_value)");
SelectAggregate (cnc, "min(text_value)");
SelectAggregate (cnc, "max(int4_value)");
SelectAggregate (cnc, "sum(int4_value)");
/* Select values */
Console.WriteLine ("\t\tSelect values from the database: ");
reader = SelectData (cnc);
// get the DataTable that holds
// the schema
Console.WriteLine("\t\tGet Schema.");
DataTable dt = reader.GetSchemaTable();
// number of columns in the table
Console.WriteLine("dt.Columns.Count: " +
dt.Columns.Count);
int c;
// display the schema
for(c = 0; c < dt.Columns.Count; c++) {
Console.WriteLine("* Column Name: " +
dt.Columns[c].ColumnName);
Console.WriteLine(" MaxLength: " +
dt.Columns[c].MaxLength);
Console.WriteLine(" Type: " +
dt.Columns[c].DataType);
}
int nRows = 0;
string metadataValue;
string dataValue;
string output;
// Read and display the rows
while(reader.Read()) {
Console.WriteLine ("Row " + nRows + ":");
for(c = 0; c < reader.FieldCount; c++) {
// column meta data
metadataValue =
" Col " +
c + ": " +
dt.Columns[c].ColumnName;
// column data
if(reader.IsDBNull(c) == true)
dataValue = " is NULL";
else
dataValue =
": " +
reader.GetValue(c);
// display column meta data and data
output = metadataValue + dataValue;
Console.WriteLine(output);
}
nRows++;
}
reader.Close();
Console.WriteLine ("Rows: " + nRows);
/* Clean up */
Console.WriteLine ("Clean up...");
Console.WriteLine ("\t\tDrop table...");
DropTable (cnc);
Console.WriteLine("OK");
}
catch(Exception e) {
Console.WriteLine("Exception caught: " + e);
}
}
[STAThread]
static void Main(string[] args)
{
SqlConnection cnc = new SqlConnection ();
/*
string connectionString =
"host=localhost;" +
"dbname=test;" +
"user=userid;" +
"password=password";
*/
string connectionString =
"host=localhost;" +
"dbname=test;" +
"user=postgres;";
cnc.ConnectionString = connectionString;
cnc.Open();
DoPostgresTest(cnc);
cnc.Close();
}
}
}
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