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|
-------------------------------------------------------------------------------
--
-- Filename : $Source: /cvsroot/gnade/gnade/tools/sql.adb,v $
-- Description : Execute an sql command --
-- Author : Michael Erdmann --
-- Created : 5.4.2003 --
-- Last Modified By: $Author: merdmann $
-- Last Modified On: $Date: 2003/05/10 16:24:03 $
-- Status : $State: Exp $
--
-- Copyright (C) 2000 - 2003 Michael Erdmann --
-- --
-- GNADE is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- Author: Michael Erdmann <michael.erdmann@snafu.de> --
-- --
-- GNADE is implemented to work with GNAT, the GNU Ada compiler. --
-- --
-- Functional Description --
-- ====================== --
-- --
-- This programm allows to explore an odbc interface --
-- --
-- --
-- Restrictions --
-- ============ --
-- None --
-- --
-- References --
-- ========== --
-- None --
-- --
-------------------------------------------------------------------------------
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Command_Line; use Ada.Command_Line;
with Ada.Strings.Unbounded; use Ada.Strings.Unbounded;
with ODBC; use ODBC;
with Tools; use Tools;
procedure SQL is
Version : constant String := "$Id: sql.adb,v 1.6 2003/05/10 16:24:03 merdmann Exp $";
Q : Unbounded_String := Null_Unbounded_String;
DB : ODBC.Object;
Login : Unbounded_String;
Pwd : Unbounded_String;
Source : Unbounded_String;
Argc : Natural := 1;
Quiet : Boolean := False;
Error, Message : Unbounded_String;
----------
-- Help --
----------
procedure Help is
begin
Put_Line("usage : " );
Put_Line(" sql -u <login> [ -l <passwd> ] <source> <query> " );
Put_Line("");
end Help;
------------
-- Header --
------------
procedure Print_Header(
R : in Result_Record ) is
-- Display the column name of a given result set
begin
if Quiet then
return;
end if;
for I in R'Range loop
Put( Field_Name(DB, I) & " " );
end loop;
Put_Line("");
end Print_Header;
---------
-- Row --
---------
procedure Print_Row(
R : in Result_Record ) is
begin
for I in R'Range loop
Put( To_String( R(I) ) & ";" );
end loop;
Put_Line("");
end Print_Row;
begin
Initialize(DB);
-- Handle the command line arguments
while Argc in 1..Argument_Count loop
declare
Arg : constant String := Argument( Argc );
begin
if Arg = "-u" then
Argc := Argc + 1;
Login := To_Unbounded_String( Argument( Argc ) );
elsif Arg = "-p" then
Argc := Argc + 1;
Pwd := To_Unbounded_String( Argument( Argc ) );
elsif Arg = "-h" then
Help;
return;
elsif Arg = "-q" then
Quiet := True;
else
if Source = Null_Unbounded_String then
Source := To_Unbounded_String( Arg );
else
Q:= Q & To_Unbounded_String( Arg & " " );
end if;
end if;
Argc := Argc + 1;
end;
end loop;
if not Quiet then
Put_Line("GNADE SQL Executor, Version " & Tools.Version);
Put_Line("Copyright (C) 2003, Michael Erdmann (michael.erdmann@snafu.de)");
Put_Line("");
end if;
if Source = Null_Unbounded_String then
Put_Line("source not specified");
Put_Line("");
Help;
Set_Exit_Status(Failure);
return;
end if;
-- connect to the data base
Authorization( DB, To_String(Login), To_String(Pwd) );
Data_Source( DB, To_String(Source) );
Connect( DB );
-- if a query is available execute it make the result visible
if Q /= Null_Unbounded_String then
declare
R : Result_Record := null;
begin
Query( DB, To_String(Q) );
R := Fetch( DB );
Print_Header(R);
while R /= null loop
Print_Row( R );
Free( R );
R := Fetch( DB );
end loop;
exception
when others =>
Get_Error( DB, Error, Message );
Put_Line( To_String( Error ) & ":" & To_String( Message ) );
Set_Exit_Status( Failure );
end;
end if;
--Finalize( DB );
Set_Exit_Status( Success );
exception
when Others =>
Get_Error( DB, Error, Message );
Put_Line( To_String( Error ) & ":" & To_String( Message ) );
Set_Exit_Status( Failure );
end SQL;
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