用access和excel進行數(shù)據(jù)分析總結(jié)

#數(shù)據(jù)庫操作(如表的合并,跨表查詢,統(tǒng)計最大最小數(shù)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

#一般思路:　對于原始的excel表,先利用access的SQL語句進行分組,排序,跨表合并

根據(jù)具體要求再利用excel的公式或VBA完成其他復(fù)雜的功能

幾點經(jīng)驗:

1.access中要進行跨表查詢,必須先建立"關(guān)系",可使用工具->關(guān)系菜單進行設(shè)置

2. 常見SQL語句

a)最大最小,排序處理

SELECT AFE_statv2ACCURACY.forecast_Stkcd, AFE_statv2ACCURACY.YEAR, Min(AFE_statv2ACCURACY.RAW_DAYS_ELAPSED) AS RAW_DAYS_ELAPSED之最小值, Max(AFE_statv2ACCURACY.RAW_DAYS_ELAPSED) AS RAW_DAYS_ELAPSED之最大值

FROM AFE_statv2ACCURACY

GROUP BY AFE_statv2ACCURACY.forecast_Stkcd, AFE_statv2ACCURACY.YEAR

ORDER BY AFE_statv2ACCURACY.forecast_Stkcd, AFE_statv2ACCURACY.YEAR;

b)刪除數(shù)據(jù)

DELETE *

FROM AFE_statv2無空項

WHERE AFE_statv2無空項.forecast_AFE最大值=AFE_statv2無空項.forecast_AFE最小值

c) 表的連接:

INNER JOIN保留公共數(shù)據(jù),LEFT JOIN和RIGHT JOIN分別完整保留左,右表數(shù)據(jù),必要時通過DISTINCT參數(shù)去除重復(fù)的記錄

d)日期函數(shù) Year等

3. excel VBA代碼分析

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(jié)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(shù)

For rno = 2 To 6864

stkcd = Sheet11.Range("A" & rno).Value 查找股票代碼

thisdate = Sheet11.Range("E" & rno).Value 查找日期

Set findStk1 = Sheet1.Range("1:1").Find(stkcd)

Set findStk2 = Sheet2.Range("1:1").Find(stkcd)

Set findStk3 = Sheet3.Range("1:1").Find(stkcd)

Set findStk6 = Sheet6.Range("1:1").Find(stkcd)

Set findStk7 = Sheet7.Range("1:1").Find(stkcd)

Set findStk8 = Sheet8.Range("1:1").Find(stkcd)

Set findStk9 = Sheet9.Range("1:1").Find(stkcd)

Set findStk10 = Sheet10.Range("1:1").Find(stkcd)

查找股票在哪張表中

If Not findStk1 Is Nothing Then

Set findStk = findStk1

Sheets("sz_stk1").Select

ElseIf Not findStk2 Is Nothing Then

Set findStk = findStk2

Sheets("sz_stk2").Select

ElseIf Not findStk3 Is Nothing Then

Set findStk = findStk3

Sheets("sz_stk34").Select

ElseIf Not findStk6 Is Nothing Then

Set findStk = findStk6

Sheets("sh_stk1").Select

ElseIf Not findStk7 Is Nothing Then

Set findStk = findStk7

Sheets("sh_stk2").Select

ElseIf Not findStk8 Is Nothing Then

Set findStk8 = findStk8

Sheets("sh_stk3").Select

ElseIf Not findStk9 Is Nothing Then

Set findStk = findStk9

Sheets("sh_stk4").Select

ElseIf Not findStk10 Is Nothing Then

Set findStk = findStk10

Sheets("sh_stk5").Sele

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