Proyek Queri-queri Lanjut dan
Sub-subqueri
Proyek Queri-queri Lanjut dan Subsubqueri
Variables dan Data
Integer
• 2 bytes
• -32768 32767
Long
• 4 bytes
• +/- 2,147,483,648
Single
• 4 bytes
• +/- 3.402823 E38
• +/- 1.401298 E-45
Double
• 8 bytes
• +/- 1.79769313386232 E-308
• +/- 4.94065645841247 E-324
Currency
• 8 bytes
• +/- 922,337,203,685,477.5808
Variant
• Any data Type
• Null
Fungsi-fungsi Internal standar
Fungsi String
•
•
•
•
•
LCase, UCase
Format
StrComp
Len
InStr
•
•
•
•
•
Chr, Asc
String
Trim, LTrim, RTrim
Left, Right, Mid
& Concatenation
Len
• Len"Ramanujan") = 9
InStr
• ("8764 main"," ") = 5
String
• String(5, "a") = "aaaaa"
Trim, LTrim, RTrim
• Trim("
Maria ") = "Maria"
Left, Right, Mid
• Left("jackson",5) = "Jacks"
& Concatenation
• "Frank" & "Rose = "FrankRose"
Fungsi Matematis Standar
• Numeric
Numeric
•
•
•
•
•
•
•
Exp, Log
Atn, Cos, Sin, Tan
Sqr
Abs
Sgn
Int, Fix
Rnd, Randomize
Conditions
Basic Conditions
• If (conditiona1) Then statement for true
• Else
• Statement for false If (condition2) Then statements for
true
• End If
• End If
Nested Conditions
• Response = MsgBox ( . . .) If (response = vbYes)
Then 'statements for Yes
• Else
• If (response = vbNo) Then 'statements for No
• Else
• 'statements for Cancel End If
• End If
Pernyataan Select
• Response = MsgBox( . . . ) Select Case response
case vbYes
• 'statements for Yes Case vbNo
• 'statements for No Case vbCancel
• 'statements for cancel End Case
Loops
Input dan Output
Subroutines
Subroutine StatusMessage dapat
dipanggil dari lokasi mana saja.
• Main program
...
StatusMessage "trying to connect."
...
StatusMessage
"verifying access."
...
End
main program
Sub StatusMessage (Msg As String) 'Display Msg,
location, color
End
Sub
Komputasi
Variable Scope
Form
• Button1
• Button2
Form-Module Code
•
•
•
•
•
•
•
•
Sub Button1_Click()
Dim I1 As Integer
I1 = 3
End Sub
Sub Button2_Click()
Dim i1 As Integer
I1 = 7
End Sub
Proyek Queri-queri Lanjut dan Subsubqueri