带有批量复制的 CASE 语句，导出为 csv

Question

I am exporting files to .csv using bulk copy utility, I have eight tables and want to avoid making eight different procedures, How can I put it all inside this one ?

这是我的尝试...

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF OBJECT_ID ('[dbo].[generateCSV]') IS NOT NULL
DROP PROCEDURE [dbo].[generateCSV]
GO

  CREATE PROCEDURE [dbo].[generateCSV]

(
 @table varchar(100),
 @output varchar(100), 
 @date varchar(12),
 @server varchar(30)
)

AS

BEGIN

DECLARE @sqlClients varchar(8000)



SELECT @sqlClients = 

   CASE @table WHEN 'Clients' THEN 'bcp "select 
* from ' + DB_NAME() + '.dbo.' + @table  + ' 
where ReportingDate = ''' + @date + '''"' + ' queryout ' +  @output + '  -c 
-C65001 -t";" -r"\n" -T -S' + @server 

  WHEN 'Receivables' THEN 'bcp "SELECT * from ' + DB_NAME() + + '.dbo.' + 
   @table  + ' where ReportingDate = ''' + @date + '''"' + ' queryout ' +  
   @output + '  -c -C65001 -t";" -r"\n" -T -S' + @server 

  ...
END

exec master..xp_cmdshell @sqlClients 




       -- Main EXEC

EXEC dbo.generateCSV @table = 'Clients', @date = '2017-10-31', @output = 
'//172.18.16.109/share/Test.csv (server with export target location ) ', 
@server = '172.18.16.108(server we are connected to and from which we are 
taking the data)'

除了客户和应收账款之外，我还有八个 tables，并且 基于主过程调用中提供的 @table 参数我想要不同的bcp select。我该怎么做？ 当我运行以上脚本时，我将收到：

Answer 1

该错误是由于在为@sqlClients 赋值时case 语句结束不当造成的。只需在以下语句的末尾添加 'End ' 关键字 -

SELECT @sqlClients =

   CASE @table WHEN 'Clients' THEN 'bcp "select 
* from ' + DB_NAME() + '.dbo.' + @table  + ' 
where ReportingDate = ''' + @date + '''"' + ' queryout ' +  @output + '  -c 
-C65001 -t";" -r"\n" -T -S' + @server 

  WHEN 'Receivables' THEN 'bcp "SELECT * from ' + DB_NAME() + + '.dbo.' + 
   @table  + ' where ReportingDate = ''' + @date + '''"' + ' queryout ' +  
@output + '  -c -C65001 -t";" -r"\n" -T -S' + @server end --<<<----MISSING END KEYWORD

带有批量复制的 CASE 语句，导出为 csv

CASE statement with Bulk copy, export to csv

tsql

sql-server

csv

case

export-to-csv