The document describes the creation of a database in SQL Server to manage invoices and receipts. It includes tables for clients, employees, document headers, and document details. Stored procedures are created to insert data and a form is developed in Visual Studio .NET to manage documents. The form allows searching for clients and employees, adding product details, and printing reports using Crystal Reports.

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FACTURA – BOLETA
BD. SQL SERVER
CREATE DATABASE SISTEMA
GO
USE SISTEMA
GO
CREATE TABLE CLIENTES
(IDCLI VARCHAR(5)NOT NULL ,
NOMBRE VARCHAR(20)NOT NULL,
APELLIDOS VARCHAR(50)NOT NULL,
SEXO VARCHAR(1)NULL,
Primary Key (IDCLI))
GO
INSERT INTO CLIENTES VALUES('C0001','LUIS','GOMEZ','M')
INSERT INTO CLIENTES VALUES('C0002','CARLOS','SANCHEZ','M')
INSERT INTO CLIENTES VALUES('C0003','ELIANA','CASTRO','M')
GO
CREATE TABLE EMPLEADOS
(IDEMP VARCHAR(5)NOT NULL,
NOMBRE VARCHAR(20)NOT NULL,
APELLIDOS VARCHAR(50)NOT NULL,
SEXO VARCHAR(1)NULL,
Primary Key (IDEMP))
GO
INSERT INTO EMPLEADOS VALUES('E0001','LUIS','GOMEZ','M')
INSERT INTO EMPLEADOS VALUES('E0002','FERNANDA','PEREZ','M')
INSERT INTO EMPLEADOS VALUES('E0003','LUISA','VERASTEGUI','M')
GO
--DOCUMENTO--
CREATE TABLE CAB_DOCUMENTO
(NDOC VARCHAR (5) NOT NULL,
TIP_DOC VARCHAR (30) NOT NULL,
IDCLI VARCHAR(5) NOT NULL,
IDEMP VARCHAR (5)NOT NULL,
FECHA DATETIME NOT NULL,
SUBTOTAL REAL NULL,
IGV REAL NULL,
TOTAL REAL NULL,
ESTADO VARCHAR(20) NOT NULL,
PRIMARY KEY(NDOC,TIP_DOC))
GO
CREATE TABLE DETALLE_DOCUMENTO(
NDOC VARCHAR (5)NOT NULL,
TIP_DOC VARCHAR (30) NOT NULL,
ITEM INT NOT NULL,
PRODUCTO VARCHAR(20) NOT NULL,
PRECIO REAL NULL,
CANTIDAD INT NULL,
PRIMARY KEY(ITEM,NDOC,TIP_DOC))
GO
ALTER TABLE CAB_DOCUMENTO
ADD FOREIGN KEY(IDCLI) REFERENCES CLIENTES

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ALTER TABLE CAB_DOCUMENTO
ADD FOREIGN KEY(IDEMP) REFERENCES EMPLEADOS
ALTER TABLE DETALLE_DOCUMENTO
ADD FOREIGN KEY (NDOC,TIP_DOC) REFERENCES CAB_DOCUMENTO
GO
--CREACION DE LA TABLA GENERADOR
GO
CREATE TABLE GENERADOR(
PARAMETRO Varchar(40) Not Null,
ULTIMO Int Null
)
GO
-- INSERCCION DE DATOS EN LA TABLA GENERADOR
INSERT INTO GENERADOR values('DOCUMENTO',0)
GO
CREATE PROCEDURE SP_MANTEDOCUMENTO
@NDO VARCHAR (5),
@TIP VARCHAR (30),
@IDC VARCHAR(5),
@IDE VARCHAR (5),
@FEC DATETIME ,
@SUBTOT REAL,
@IGV REAL,
@TOT REAL,
@EST VARCHAR(20)
AS
BEGIN
INSERT INTO CAB_DOCUMENTO VALUES (@NDO, @TIP, @IDC,@IDE,
@FEC,@SUBTOT,@IGV,@TOT,@EST)
END
GO
SELECT * FROM CLIENTES
SELECT * FROM EMPLEADOS
SELECT * FROM CAB_DOCUMENTO
SELECT * FROM DETALLE_DOCUMENTO
SELECT * FROM GENERADOR
APLICACIÓN. VISUAL STUDIO.NET

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CODIGO Facturacion (Form1.vb)
Imports System.Data.SqlClient
Public Class Facturacion
Dim fila As Integer = -1
Dim TIPO As String = ""
Dim D As Integer = 0
Dim pre As Double
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
MyBase.Load
Me.txtFecha.Text = Now
End Sub
Private Sub btnAgregar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
btnAgregar.Click
Me.DatosGrid.Rows.Add("")
End Sub
Private Sub btnQuitar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
btnQuitar.Click
If fila <> -1 Then
Me.DatosGrid.Rows.RemoveAt(fila)
fila = -1
Else
MsgBox("Debe eliminar una fila")
End If
End Sub
Private Sub btnGrabar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
btnGrabar.Click
Try
'CONDICIONES EN BOLETA
If radBoleta.Checked = True Then
TIPO = "BOLETA"
End If
If radFactura.Checked = True Then
TIPO = "FACTURA"
End If
'CABECERA
cn.Open()
Dim cmd As New SqlCommand("SP_MANTEDOCUMENTO", cn)
Dim prm As New SqlParameter
With cmd
.CommandType = CommandType.StoredProcedure
prm = .Parameters.Add("@NDO", SqlDbType.VarChar, 5)
prm.Value = Me.txtNum.Text
prm = .Parameters.Add("@TIP", SqlDbType.VarChar, 30)
prm.Value = TIPO

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prm = .Parameters.Add("@IDC", SqlDbType.VarChar, 5)
prm.Value = Me.txtCodCli.Text
prm = .Parameters.Add("@IDE", SqlDbType.VarChar, 5)
prm.Value = Me.txtCodEmpl.Text
prm = .Parameters.Add("@FEC", SqlDbType.DateTime)
prm.Value = Me.txtFecha.Text
prm = .Parameters.Add("@SUBTOT", SqlDbType.Real)
prm.Value = Me.txtSubTotal.Text
prm = .Parameters.Add("@IGV", SqlDbType.Real)
prm.Value = Me.txtIgv.Text
prm = .Parameters.Add("@TOT", SqlDbType.Real)
prm.Value = Me.txtTotal.Text
prm = .Parameters.Add("@EST", SqlDbType.VarChar, 20)
prm.Value = Me.cbEstado.SelectedItem
.ExecuteNonQuery()
End With
cn.Close()
cmd.Dispose()
'DETALLE
Dim I As Integer
Dim prod, precio, cant, imp, sql2 As String
For I = 0 To DatosGrid.Rows.Count - 1
prod = DatosGrid.Rows(I).Cells(0).Value
precio = DatosGrid.Rows(I).Cells(1).Value
cant = DatosGrid.Rows(I).Cells(2).Value
imp = DatosGrid.Rows(I).Cells(3).Value
sql2 = "INSERT INTO DETALLE_DOCUMENTO VALUES('" + Me.txtNum.Text + "','" + TIPO + "','" +
(I + 1).ToString + "', '" + prod + "' , '" + precio + "' , '" + cant + "')"
Dim cmd2 As New SqlCommand(sql2, cn)
cn.Open()
cmd2.ExecuteNonQuery()
cn.Close()
cmd2.Dispose()
Next
MsgBox("Documento Almacenado")
'ACTUALIZAR
Dim cmd3 As New SqlCommand("UPDATE GENERADOR SET ULTIMO = ULTIMO + 1
WHERE PARAMETRO = 'DOCUMENTO'", cn)
cn.Open()
cmd3.ExecuteNonQuery()
cn.Close()
cmd3.Dispose()
pre = 0
Catch ex As Exception
MsgBox(ex.Message)
cn.Close()
End Try
End Sub

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Private Sub btnBusCliente_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
btnBusCliente.Click
Try
Dim NR As Integer = -1
Dim Codigo As String = ""
Codigo = InputBox("Ingrese Cliente:")
Dim Da1 As New SqlDataAdapter("select * from CLIENTES where IdCLI = '" + Codigo + "'", cn)
Da1.Fill(dsEntorno, "Busq1")
NR = dsEntorno.Tables("Busq1").Rows.Count
If NR > 0 Then
Me.txtCodCli.Text = dsEntorno.Tables("Busq1").Rows(0)(0)
Me.txtNomCli.Text = dsEntorno.Tables("Busq1").Rows(0)(1)
Else
MsgBox("Cliente no Existe")
End If
dsEntorno.Tables("Busq1").Rows.Clear()
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Private Sub btnBusEmpleado_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
btnBusEmpleado.Click
Try
Dim NR As Integer = -1
Dim Codigo As String = ""
Codigo = InputBox("Ingrese Empleado:")
Dim Da1 As New SqlDataAdapter("select * from EMPLEADOS where IDEMP = '" + Codigo + "'", cn)
Da1.Fill(dsEntorno, "Busq2")
NR = dsEntorno.Tables("Busq2").Rows.Count
If NR > 0 Then
Me.txtCodEmpl.Text = dsEntorno.Tables("Busq2").Rows(0)(0)
Me.txtNomEmp.Text = dsEntorno.Tables("Busq2").Rows(0)(1)
Else
MsgBox("Empleado no Existe")
End If
dsEntorno.Tables("Busq2").Rows.Clear()
Catch ex As Exception
MsgBox(ex.Message)
MsgBox(ex.ToString)
End Try
End Sub
Private Sub btnNuevo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
btnNuevo.Click
Call limpiar()
Me.txtNum.Text = Generadores("DOCUMENTO")
End Sub
Sub limpiar()
Me.txtNum.Text = ""
Me.txtCodCli.Text = ""
Me.txtNomCli.Text = ""
Me.txtCodEmpl.Text = ""
Me.txtNomEmp.Text = ""

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Me.txtSubTotal.Text = ""
Me.txtIgv.Text = ""
Me.txtTotal.Text = ""
Me.cbEstado.Text = ""
Me.DatosGrid.Rows.Clear()
Me.DatosGrid.DataSource = Nothing
D = 0
End Sub
Private Sub DatosGrid_CellClick(ByVal sender As Object, ByVal e As
System.Windows.Forms.DataGridViewCellEventArgs) Handles DatosGrid.CellClick
fila = e.RowIndex
End Sub
Private Sub DatosGrid_CellEnter(ByVal sender As Object, ByVal e As
System.Windows.Forms.DataGridViewCellEventArgs) Handles DatosGrid.CellEnter
Try
If (DatosGrid.Rows(D).Cells(2).Value > 0) Then
Me.DatosGrid.Rows(D).Cells(3).Value = Me.DatosGrid.Rows(D).Cells(2).Value *
Me.DatosGrid.Rows(D).Cells(1).Value
End If
If (radBoleta.Checked = True) Then
If (DatosGrid.Rows(D).Cells(3).Value > 0) Then
pre = pre + DatosGrid.Rows(D).Cells(3).Value
Me.txtSubTotal.Text = pre
Me.txtIgv.Text = 0
Me.txtTotal.Text = Me.txtSubTotal.Text
D = D + 1
End If
ElseIf (radFactura.Checked = True) Then
If (DatosGrid.Rows(D).Cells(3).Value > 0) Then
pre = pre + DatosGrid.Rows(D).Cells(3).Value
Me.txtSubTotal.Text = pre
Me.txtIgv.Text = (Val(Me.txtSubTotal.Text) * 0.19)
Me.txtTotal.Text = (Val(Me.txtSubTotal.Text) + Val(Me.txtIgv.Text))
D = D + 1
End If
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Private Sub btnImprimir_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
btnImprimir.Click
tipoDocu = cbTipoDocu.SelectedItem
codDocu = txtCodigoDocu.Text
frmImprimir.Show()
End Sub
End Class

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MODULO DE CONEXION Y AUTOGENERADOR DE CODIGO (Generar.vb)
Imports System.Data.SqlClient
Module Generar
Public cn As New SqlConnection("server=localhost;database=SISTEMA; integrated security = true")
Public dsEntorno As New DataSet
Public tipoDocu As String
Public codDocu As String
Public Function Generadores(ByVal TABLA As String) As String
Dim RESULT As String = ""
Dim DR1 As SqlDataReader
Dim ULT As Integer = 0
Dim CMD As New SqlCommand("SELECT ULTIMO FROM GENERADOR WHERE PARAMETRO = '" +
TABLA + "'", cn)
cn.Open()
DR1 = CMD.ExecuteReader
While DR1.Read
ULT = Val(DR1("ULTIMO") + 1)
End While
cn.Close()
Dim CEROS As Integer
CEROS = 5 - Len(Str(ULT))
Select Case CEROS
Case 3 : RESULT = Left(TABLA, 1) + "000" + Trim(Str(ULT))
Case 2 : RESULT = Left(TABLA, 1) + "00" + Trim(Str(ULT))
Case 1 : RESULT = Left(TABLA, 1) + "0" + Trim(Str(ULT))
Case 0 : RESULT = Left(TABLA, 1) + "" + Trim(Str(ULT))
End Select
Generadores = RESULT
End Function
End Module

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MODELO CRISTAL REPORT (Reporte.rpt)

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FORMULARIO PARA VISUALIZAR EL REPORTE (FrmImprimir.vb)
CODIGO DE FrmImprimir
Imports System.Data.SqlClient
Public Class frmImprimir
Dim Cn As New SqlConnection("Server=LocalHost;Uid=sa;Password=123;Database=SISTEMA")
Dim INFORME1 As Reporte
Dim MITABLA As CrystalDecisions.CrystalReports.Engine.Table
Dim MILOGIN As CrystalDecisions.Shared.TableLogOnInfo
Private Sub frmImprimir_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
MyBase.Load
Try
INFORME1 = New Reporte
For Each Me.MITABLA In INFORME1.Database.Tables
MILOGIN = MITABLA.LogOnInfo
MILOGIN.ConnectionInfo.Password = "123"
MILOGIN.ConnectionInfo.UserID = "sa"
MITABLA.ApplyLogOnInfo(MILOGIN)
Next
Me.CrystalReportViewer1.ReportSource = INFORME1
INFORME1.RecordSelectionFormula = "{CAB_DOCUMENTO.TIP_DOC}='" + tipoDocu + "' And
{DETALLE_DOCUMENTO.NDOC}='" + codDocu + "'"
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
End Class