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SQL to Excel 的应用

王朝mssql·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

参考网上资料,自己做的SQL to Excel 事例,

1、需要先安装MS的事例数据库:pubs

2、预先已有的c:\temp\test.xls(macro代码已写好,包含'sheet1'和'people'两张sheet)

3、执行此SQL,可把数据导入test.xls

4、打开test.xls,按按钮,可产生数据的图表

SQL:

---------------------------------------------------------------------------------------------------------------------------

PRINT 'Begin CreateXLS script at '+RTRIM(CONVERT(varchar(24),GETDATE(),121))+' '

PRINT ''

GO

SET NOCOUNT ON

DECLARE @Conn int -- ADO Connection object to create XLS

, @hr int -- OLE return value

, @src varchar(255) -- OLE Error Source

, @desc varchar(255) -- OLE Error Description

, @Path varchar(255) -- Drive or UNC path for XLS

, @Connect varchar(255) -- OLE DB Connection string for Jet 4 Excel ISAM

, @WKS_Created bit -- Whether the XLS Worksheet exists

, @WKS_Name varchar(128) -- Name of the XLS Worksheet (table)

, @ServerName nvarchar(128) -- Linked Server name for XLS

, @DDL varchar(8000) -- Jet4 DDL for the XLS WKS table creation

, @SQL varchar(8000) -- INSERT INTO XLS T-SQL

, @Recs int -- Number of records added to XLS

, @Log bit -- Whether to log process detail

-- Init variables

SELECT @Recs = 0

-- %%% 1 = Verbose output detail, helps find problems, 0 = minimal output detail

, @Log = 1

-- %%% assign the UNC or path and name for the XLS file, requires Read/Write access

-- must be accessable from server via SQL Server service account

-- & SQL Server Agent service account, if scheduled

SET @Path = 'C:\TEMP\Test.xls'

--SET @Path = 'C:\TEMP\Test_'+CONVERT(varchar(10),GETDATE(),112)+'.xls'

-- assign the ADO connection string for the XLS creation

SET @Connect = 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source='+@Path+';Extended Properties=Excel 8.0'

-- %%% assign the Linked Server name for the XLS population

SET @ServerName = 'EXCEL_TEST'

-- %%% Rename Table as required, this will also be the XLS Worksheet name

SET @WKS_Name = 'People'

-- %%% Table creation DDL, uses Jet4 syntax,

-- Text data type = varchar(255) when accessed from T-SQL

SET @DDL = 'CREATE TABLE '+@WKS_Name+' (SSN Text, Name Text, Phone Text, Zip numeric)'

-- %%% T-SQL for table population, note the 4 part naming required by Jet4 OLE DB

-- INSERT INTO SELECT, INSERT INTO VALUES, and EXEC sp types are supported

-- Linked Server does not support SELECT INTO types

SET @SQL = 'INSERT INTO '+@ServerName+'...'+@WKS_Name+' (SSN, Name, Phone, Zip) '

SET @SQL = @SQL+'SELECT au_id AS SSN'

SET @SQL = @SQL+', LTRIM(RTRIM(ISNULL(au_fname,'''')+'' ''+ISNULL(au_lname,''''))) AS Name'

SET @SQL = @SQL+', phone AS Phone '

SET @SQL = @SQL+', zip AS Zip '

SET @SQL = @SQL+'FROM pubs.dbo.authors '

SET @SQL = @SQL+'order by zip '

print '1:'+@SQL

IF @Log = 1 PRINT 'Created OLE ADODB.Connection object'

-- Create the Conn object

EXEC @hr = sp_OACreate 'ADODB.Connection', @Conn OUT

IF @hr <> 0 -- have to use <> as OLE / ADO can return negative error numbers

BEGIN

-- Return OLE error

EXEC sp_OAGetErrorInfo @Conn, @src OUT, @desc OUT

SELECT Error=convert(varbinary(4),@hr), Source=@src, Description=@desc

RETURN

END

IF @Log = 1 PRINT char(9)+'Assigned ConnectionString property'

-- Set a the Conn object's ConnectionString property

-- Work-around for error using a variable parameter on the Open method

EXEC @hr = sp_OASetProperty @Conn, 'ConnectionString', @Connect

IF @hr <> 0

BEGIN

-- Return OLE error

EXEC sp_OAGetErrorInfo @Conn, @src OUT, @desc OUT

SELECT Error=convert(varbinary(4),@hr), Source=@src, Description=@desc

RETURN

END

IF @Log = 1 PRINT char(9)+'Open Connection to XLS, for file Create or Append'

-- Call the Open method to create the XLS if it does not exist, can't use parameters

EXEC @hr = sp_OAMethod @Conn, 'Open'

IF @hr <> 0

BEGIN

-- Return OLE error

EXEC sp_OAGetErrorInfo @Conn, @src OUT, @desc OUT

SELECT Error=convert(varbinary(4),@hr), Source=@src, Description=@desc

RETURN

END

-- %%% This section could be repeated for multiple Worksheets (Tables)

IF @Log = 1 PRINT char(9)+'Execute DDL to create '''+@WKS_Name+''' worksheet'

-- Call the Execute method to Create the work sheet with the @WKS_Name caption,

-- which is also used as a Table reference in T-SQL

-- Neat way to define column data types in Excel worksheet

-- Sometimes converting to text is the only work-around for Excel's General

-- Cell formatting, even though the Cell contains Text, Excel tries to format

-- it in a "Smart" way, I have even had to use the single quote appended as the

-- 1st character in T-SQL to force Excel to leave it alone

EXEC @hr = sp_OAMethod @Conn, 'Execute', NULL, @DDL, NULL, 129 -- adCmdText + adExecuteNoRecords

-- 0x80040E14 for table exists in ADO

IF @hr = 0x80040E14

-- kludge, skip 0x80042732 for ADO Optional parameters (NULL) in SQL7

OR @hr = 0x80042732

BEGIN

-- Trap these OLE Errors

IF @hr = 0x80040E14

BEGIN

PRINT char(9)+''''+@WKS_Name+''' Worksheet exists for append'

SET @WKS_Created = 0

END

SET @hr = 0 -- ignore these errors

END

IF @hr <> 0

BEGIN

-- Return OLE error

EXEC sp_OAGetErrorInfo @Conn, @src OUT, @desc OUT

SELECT Error=convert(varbinary(4),@hr), Source=@src, Description=@desc

RETURN

END

IF @Log = 1 PRINT 'Destroyed OLE ADODB.Connection object'

-- Destroy the Conn object, +++ important to not leak memory +++

EXEC @hr = sp_OADestroy @Conn

IF @hr <> 0

BEGIN

-- Return OLE error

EXEC sp_OAGetErrorInfo @Conn, @src OUT, @desc OUT

SELECT Error=convert(varbinary(4),@hr), Source=@src, Description=@desc

RETURN

END

print '2:'

-- Linked Server allows T-SQL to access the XLS worksheet (Table)

-- This must be performed after the ADO stuff as the XLS must exist

-- and contain the schema for the table, or worksheet

IF NOT EXISTS(SELECT srvname from master.dbo.sysservers where srvname = @ServerName)

BEGIN

IF @Log = 1 PRINT 'Created Linked Server '''+@ServerName+''' and Login'

EXEC sp_addlinkedserver @server = @ServerName

, @srvproduct = 'Microsoft Excel Workbook'

, @provider = 'Microsoft.Jet.OLEDB.4.0'

, @datasrc = @Path

, @provstr = 'Excel 8.0'

-- no login name or password are required to connect to the Jet4 ISAM linked server

EXEC sp_addlinkedsrvlogin @ServerName, 'false'

END

-- Have to EXEC the SQL, otherwise the SQL is evaluated

-- for the linked server before it exists

EXEC (@SQL)

PRINT char(9)+'Populated '''+@WKS_Name+''' table with '+CONVERT(varchar,@@ROWCOUNT)+' Rows'

-- %%% Optional you may leave the Linked Server for other XLS operations

-- Remember that the Linked Server will not create the XLS, so remove it

-- When you are done with it, especially if you delete or move the file

IF EXISTS(SELECT srvname from master.dbo.sysservers where srvname = @ServerName)

BEGIN

IF @Log = 1 PRINT 'Deleted Linked Server '''+@ServerName+''' and Login'

EXEC sp_dropserver @ServerName, 'droplogins'

END

GO

SET NOCOUNT OFF

PRINT ''

PRINT 'Finished CreateXLS script at '+RTRIM(CONVERT(varchar(24),GETDATE(),121))+' '

GO

---------------------------------------------------------------------------------------------------------------------------------------------------

Excel .sheet1.CommandButton宏代码:

-----------------------------------------------------------------------

Private Sub CommandButton1_Click()

Dim b_P As Boolean

b_P = False

For i = 1 To Sheets.Count

If Sheets(i).Name = "People" Then

b_P = True

Exit For

End If

Next i

If b_P = False Then Exit Sub

Charts.Add

ActiveChart.ChartType = xlColumnClustered

ActiveChart.SetSourceData Source:=Sheets("People").Range("B1:D24"), PlotBy _

:=xlColumns

ActiveChart.SeriesCollection(1).XValues = "=People!R2C2:R24C2"

ActiveChart.Location Where:=xlLocationAsObject, Name:="Sheet1"

With ActiveChart

.HasTitle = True

.ChartTitle.Characters.Text = "Zip"

.Axes(xlCategory, xlPrimary).HasTitle = False

.Axes(xlValue, xlPrimary).HasTitle = False

End With

End Sub

----------------------------------------------------------------------------------

 
 
 
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