Proyek Queri-queri Lanjut dan Sub-subqueri

Variables dan Data

Integer 2 bytes

Long 4 bytes +/- 2,147,483,648

Single 4 bytes +/ E38 +/ E-45

Double 8 bytes +/ E-308 +/ E-324

Currency 8 bytes +/- 922,337,203,685,

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

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

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 Sub- subqueri