如何在导出的.csv文件中忽略null ,我使用了bcp实用程序 在sql server中,这就是它的外观。
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
DECLARE @sql varchar(8000)
SELECT @sql = 'bcp "select * from ' + DB_NAME() + '.dbo.' + @table + '
where reportingdate = ''' + @date + '''"' + ' queryout ' + @output + ' -c
-C65001 -t";" -r"\n" -T -S' + @server
exec master..xp_cmdshell @sql
-- 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)'
在notepad ++中导出并打开我的文件后,空列最终填满了NULL。
我希望它看起来像......
修改
我在select子句中包含了 ISNULL(),但仍然记事本会将这些列读为空值。
SELECT @sql = 'bcp "select
ReportingDate,uniqClientID,registrationNumber,name,ISNULL(vatNumber,'''') as
vatNumber,ISNULL(entityStatusCode,'''') as entityStatusCode,
maximumLifetimeDPD from ' + DB_NAME() + '.dbo.' +
@table + ' where ReportingDate = ''' + @date + '''"' + ' queryout ' +
@output + ' -c -C65001 -t";" -r"\n" -T -S' + @server
答案 0 :(得分:1)
SELECT @sql =' bcp" select * from' + DB_NAME()+' .dbo。' + @table + '其中reportingdate =''' + @date +'''"' +' queryout' + @output +' -C -C65001 -t";" -r" \ n" -T -S' + @server
而不是SELECT *
写出特定的列名。
无论您感觉NULL
出现在哪里,您都可以写下以下内容。
....
SELECT
Column1,
ISNULL(Column2,'') AS Column2,
Column3,
....
from ' + DB_NAME() + '.dbo.' + @table
.....
注意:如果您有INT作为数据类型,则需要根据以下查询稍微更改您的选择。
DECLARE @INTVAL INT
SET @INTVAL = NULL
SELECT
ISNULL(LTRIM(NULLIF(@INTVAL, 0)), '') AS ColumnName