用access和excel進行資料分析總結
#資料庫操作(如表的合併,跨表查詢,統計最大最小數值等)適合用access完成
#excel適合處理二維表,對單元格的簡單計算,如下是典型的二維表
| 600600 | 600601 | 600602 | 600603 | 600604 | |
| 青島啤酒 | 方正科技 | 廣電電子 | ST興業 | 二紡機 | |
| 2002-1-4 | 7.46 | 13.02 | 10.04 | 11.08 | 9.27 |
| 2002-1-7 | 7.31 | 12.9 | 9.92 | 11.1 | 8.85 |
| 2002-1-8 | 7.3 | 12.99 | 9.95 | 11.11 | 8.73 |
| 2002-1-9 | 7.19 | 12.92 | 10.04 | 11.44 | 8.25 |
| 2002-1-10 | 7.35 | 12.94 | 10.09 | 11.95 | 8.4 |
| 2002-1-11 | 7.28 | 12.66 | 9.77 | 11.68 | 8.04 |
| 2002-1-14 | 7.08 | 12.01 | 9.5 | 11.54 | 7.73 |
| 2002-1-15 | 6.99 | 12.02 | 8.95 | 11.34 | 7.67 |
| 2002-1-16 | 7.15 | 11.99 | 8.93 | 11.15 | 7.88 |
| 2002-1-17 | 6.91 | 11.58 | 8.4 | 10.04 | 7.19 |
| 2002-1-18 | 6.9 | 11.37 | 8.2 | 9.34 | 6.9 |
#一般思路: 對於原始的excel表,先利用access的SQL語句進行分組,排序,跨表合併
根據具體要求再利用excel的`公式或VBA完成其他複雜的功能
幾點經驗:
ss中要進行跨表查詢,必須先建立"關係",可使用工具->關係選單進行設定
2. 常見SQL語句
a)最大最小,排序處理
SELECT AFE_cast_Stkcd, AFE_, Min(AFE__DAYS_ELAPSED) AS RAW_DAYS_ELAPSED之最小值, Max(AFE__DAYS_ELAPSED) AS RAW_DAYS_ELAPSED之最大值
FROM AFE_statv2ACCURACY
GROUP BY AFE_cast_Stkcd, AFE_
ORDER BY AFE_cast_Stkcd, AFE_;
b)刪除資料
DELETE *
FROM AFE_statv2無空項
WHERE AFE_statv2無空項cast_AFE最大值=AFE_statv2無空項cast_AFE最小值
c) 表的連線:
INNER JOIN保留公共資料,LEFT JOIN和RIGHT JOIN分別完整保留左,右表資料,必要時通過DISTINCT引數去除重複的記錄
d)日期函式 Year等
3. excel VBA程式碼分析
Public Sub firstVBA()
Dim thisdate As Date
Dim wday As Integer
Dim rno As Integer
Dim stkcd As String
Dim ananm As String
Dim findStk1 As Range
Dim findStk2 As Range
Dim findStk3 As Range
Dim findStk6 As Range
Dim findStk7 As Range
Dim findStk8 As Range
Dim findStk9 As Range
Dim findStk10 As Range
Dim findIndex As Range
Dim findDate As Range
Dim TwoDayB As Integer
Dim TwoDayA As Integer
Dim OneDayB As Integer
Dim OneDayA As Integer
Dim FindCol As Integer
Dim CR_FIVE As Double
Dim CR_THREE As Double
Dim Revp As Double
Dim indexTwoDayB As Integer
Dim indexTwoDayA As Integer
Dim indexOneDayB As Integer
Dim indexOneDayA As Integer
Dim CR_Index_FIVE As Double
Dim CR_Index_THREE As Double
Sheet11是最終存放結果的表,Sheet1-3,6-10存放了各日各股票的價格,sheet5存放上證,深證指數
For rno = 2 To 6864
stkcd = e("A" & rno)e 查詢股票程式碼
thisdate = e("E" & rno)e 查詢日期
Set findStk1 = e("1:1")(stkcd)
Set findStk2 = e("1:1")(stkcd)
Set findStk3 = e("1:1")(stkcd)
Set findStk6 = e("1:1")(stkcd)
Set findStk7 = e("1:1")(stkcd)
Set findStk8 = e("1:1")(stkcd)
Set findStk9 = e("1:1")(stkcd)
Set findStk10 = e("1:1")(stkcd)
查詢股票在哪張表中
If Not findStk1 Is Nothing Then
Set findStk = findStk1
Sheets("sz_stk1")ct
ElseIf Not findStk2 Is Nothing Then
Set findStk = findStk2
Sheets("sz_stk2")ct
ElseIf Not findStk3 Is Nothing Then
Set findStk = findStk3
Sheets("sz_stk34")ct
ElseIf Not findStk6 Is Nothing Then
Set findStk = findStk6
Sheets("sh_stk1")ct
ElseIf Not findStk7 Is Nothing Then
Set findStk = findStk7
Sheets("sh_stk2")ct
ElseIf Not findStk8 Is Nothing Then
Set findStk8 = findStk8
Sheets("sh_stk3")ct
ElseIf Not findStk9 Is Nothing Then
Set findStk = findStk9
Sheets("sh_stk4")ct
ElseIf Not findStk10 Is Nothing Then
Set findStk = findStk10
Sheets("sh_stk5")
