- •Курсовая работа
- •Глава 1. Общее понятие, виды бд и бз....…………………………..4
- •Глава 2. Построение бд и бз………………………………………….11
- •Введение
- •Глава 1. Общее понятие, виды бд и бз.
- •1.1. Понятие, классификации и виды бд.
- •1.1.1. Понятие бд.
- •1.1.2. История возникновения и развития бд.
- •1.1.3.Классификации бд.
- •1.2. Понятие и виды бз
- •Глава 2.Построение бд и бз.
- •2.1.Построение бд.
- •2.2. Построение бз.
- •Заключение
- •Список используемой литературы
2.2. Построение бз.
Для построения БЗ мы использовали следующую VBA- программу:
Option Base 1
Const Npr = 30
Const np = 5
Const nz = 8
Dim v(np) As String
Dim z(nz) As String
Dim k As Integer
Dim p(2) As String
Dim s(2) As String
Dim bs As String
Dim Q As String
Dim Aw As String
Dim E(Npr) As String
Dim T(Npr) As String
Public OK As Boolean
Public Sub Input_Data()
Dim found As Boolean
found = True
Dim found1 As Boolean
found1 = False
v(1) = "Сельское хозяйство": v(2) = "Домоводство": v(3) = "Юриспруденция":
v(4) = "Спорт": v(5) = "Восточная культура"
z(1) = "Есть": z(2) = "Нет"
z(3) = "<100": z(4) = "100+": z(5) = "over 9000"
z(6) = "Создать рубрику": z(7) = "Не создавать рубрику": z(8) = "Библиотека - провал"
BZ
With UserForm1
For j = 1 To np
.ComboBox1.AddItem v(j)
Next j
.ComboBox1.Value = v(1)
For j = 1 To nz - 6
.ComboBox2.AddItem z(j)
Next j
.ComboBox2.Value = z(1)
For j = 3 To nz - 3
.ComboBox5.AddItem z(j)
Next j
.ComboBox5.Value = z(3)
.Show
k = 2
p(1) = .ComboBox1.Value
s(1) = .ComboBox2.Value
bs = "And"
p(2) = .ComboBox1.Value
s(2) = .ComboBox5.Value
End With
Select Case k
Case 1
Q = p(1) + "_" + s(1)
Case 2
Q = p(1) + "_" + s(1) + "_" + bs + "_" + p(2) + "_" + s(2)
Case Else
MsgBox ("Ошибка в числе переменных")
End Select
While found = True
For i = 1 To Npr
If Q = E(i) Then
Q = T(i)
Aw = T(i)
found = True
found1 = True
GoTo m1
End If
Next i
found = False
m1:
Wend
If Not found1 Then
Aw = "ответ не найден"
End If
MsgBox ("ответ БЗ:'" + Aw + "'")
UserForm1.ComboBox1.Clear
UserForm1.ComboBox2.Clear
UserForm1.ComboBox5.Clear
End Sub
Public Sub BZ()
E(1) = v(1) + "_" + z(1) + "_And_" + v(1) + "_" + z(3)
T(1) = v(1) + "_" + z(7)
E(2) = v(1) + "_" + z(1) + "_And_" + v(1) + "_" + z(4)
T(2) = v(1) + "_" + z(7)
E(3) = v(1) + "_" + z(1) + "_And_" + v(1) + "_" + z(5)
T(3) = v(1) + "_" + z(7)
E(4) = v(1) + "_" + z(2) + "_And_" + v(1) + "_" + z(3)
T(4) = v(1) + "_" + z(7)
E(5) = v(1) + "_" + z(2) + "_And_" + v(1) + "_" + z(4)
T(5) = v(1) + "_" + z(6)
E(6) = v(1) + "_" + z(2) + "_And_" + v(1) + "_" + z(5)
T(6) = z(8)
E(7) = v(2) + "_" + z(1) + "_And_" + v(2) + "_" + z(3)
T(7) = v(2) + "_" + z(7)
E(8) = v(2) + "_" + z(1) + "_And_" + v(2) + "_" + z(4)
T(8) = v(2) + "_" + z(7)
E(9) = v(2) + "_" + z(1) + "_And_" + v(2) + "_" + z(5)
T(9) = v(2) + "_" + z(7)
E(10) = v(2) + "_" + z(2) + "_And_" + v(2) + "_" + z(3)
T(10) = v(2) + "_" + z(7)
E(11) = v(2) + "_" + z(2) + "_And_" + v(2) + "_" + z(4)
T(11) = v(2) + "_" + z(6)
E(12) = v(2) + "_" + z(2) + "_And_" + v(2) + "_" + z(5)
T(12) = z(8)
E(13) = v(3) + "_" + z(1) + "_And_" + v(3) + "_" + z(3)
T(13) = v(3) + "_" + z(7)
E(14) = v(3) + "_" + z(1) + "_And_" + v(3) + "_" + z(4)
T(14) = v(3) + "_" + z(7)
E(15) = v(3) + "_" + z(1) + "_And_" + v(3) + "_" + z(5)
T(15) = v(3) + "_" + z(7)
E(16) = v(3) + "_" + z(2) + "_And_" + v(3) + "_" + z(3)
T(16) = v(3) + "_" + z(7)
E(17) = v(3) + "_" + z(2) + "_And_" + v(3) + "_" + z(4)
T(17) = v(3) + "_" + z(6)
E(18) = v(3) + "_" + z(2) + "_And_" + v(3) + "_" + z(5)
T(18) = z(8)
E(19) = v(4) + "_" + z(1) + "_And_" + v(4) + "_" + z(3)
T(19) = v(4) + "_" + z(7)
E(20) = v(4) + "_" + z(1) + "_And_" + v(4) + "_" + z(4)
T(20) = v(4) + "_" + z(7)
E(21) = v(4) + "_" + z(1) + "_And_" + v(4) + "_" + z(5)
T(21) = v(4) + "_" + z(7)
E(22) = v(4) + "_" + z(2) + "_And_" + v(4) + "_" + z(3)
T(22) = v(4) + "_" + z(7)
E(23) = v(4) + "_" + z(2) + "_And_" + v(4) + "_" + z(4)
T(23) = v(4) + "_" + z(6)
E(24) = v(4) + "_" + z(2) + "_And_" + v(4) + "_" + z(5)
T(24) = z(8)
E(25) = v(5) + "_" + z(1) + "_And_" + v(5) + "_" + z(3)
T(25) = v(5) + "_" + z(7)
E(26) = v(5) + "_" + z(1) + "_And_" + v(5) + "_" + z(4)
T(26) = v(5) + "_" + z(7)
E(27) = v(5) + "_" + z(1) + "_And_" + v(5) + "_" + z(5)
T(27) = v(5) + "_" + z(7)
E(28) = v(5) + "_" + z(2) + "_And_" + v(5) + "_" + z(3)
T(28) = v(5) + "_" + z(7)
E(29) = v(5) + "_" + z(2) + "_And_" + v(5) + "_" + z(4)
T(29) = v(5) + "_" + z(6)
E(30) = v(5) + "_" + z(2) + "_And_" + v(5) + "_" + z(5)
T(30) = z(8)
End Sub
Управление системой осуществляется с помощью формы