Tuesday, September 22, 2009

BCP command to export table data to excel with column header

Hi Friends,
Here is a perfect running BCP command / SQL query which exports table data into excel sheet with column headers.

I spent almost 5 hrs to got it working, exporting data without column headers is a very easy job.
but the main task was getting column headers also in the first row of excel sheet..
so here is the script.. enjoy




NOTE: don't forget to replace RED elements with your local environment elements

use database
go
if object_id('spExportData_n') is not null
drop proc spExportData_n
go
create proc spExportData_n
(
@dbName varchar(100) = 'database name',
@sql varchar(8000) = 'select col1,col2,col3....col4 from table',
@fullFileName varchar(100) = 'output file path'
)
as
if @sql = '' or @fullFileName = ''
begin
select 0 as ReturnValue -- failure
return
end
-- if DB isn't passed in set it to master
select @dbName = 'use ' + @dbName + ';'
if object_id('##TempExportData') is not null
drop table ##TempExportData
if object_id('##TempExportData2') is not null
drop table ##TempExportData2
-- insert data into a global temp table
declare @columnNames varchar(8000), @columnConvert varchar(8000), @tempSQL varchar(8000)

select @tempSQL = left(@sql, charindex('from', @sql)-1) + ' into ##TempExportData ' +
substring(@sql, charindex('from', @sql)-1, len(@sql))

exec(@dbName + @tempSQL)
if @@error > 0
begin
select 0 as ReturnValue -- failure
return
end
-- build 2 lists
-- 1. column names
-- 2. columns converted to nvarchar
SELECT @columnNames = COALESCE( @columnNames + ',', '') + column_name,
@columnConvert = COALESCE( @columnConvert + ',', '') + 'convert(nvarchar(4000),'
+ column_name + case when data_type in ('datetime', 'smalldatetime') then ',121'
when data_type in ('numeric', 'decimal') then ',128'
when data_type in ('float', 'real', 'money', 'smallmoney') then ',2'
when data_type in ('datetime', 'smalldatetime') then ',120'
else ''
end + ') as ' + column_name
FROM tempdb.INFORMATION_SCHEMA.Columns
WHERE table_name = '##TempExportData'

-- execute select query to insert data and column names into new temp table
SELECT @sql = 'select ' + @columnNames + ' into ##TempExportData2 from (select ' + @columnConvert + ', ''2'' as [temp##SortID] from ##TempExportData union all select ''' + replace(@columnNames, ',', ''', ''') + ''', ''1'') t order by [temp##SortID]'

exec (@sql)

-- build full BCP query
DECLARE @bcpCommand VARCHAR(8000)
SET @bcpCommand = 'bcp " SELECT * from ##TempExportData2" queryout'
SET @bcpCommand = @bcpCommand + ' C:\Temp\test.csv -c -w -T -U sa -P sa","-CRAW'
EXEC database..xp_cmdshell @bcpCommand
if @@error > 0
begin
select 0 as ReturnValue -- failure
return
end
drop table ##TempExportData
drop table ##TempExportData2
set @columnNames =' '
set @columnConvert =' '
set @tempSQL =' '
select 1 as ReturnValue

4 comments:

DJAX said...

Hello,

I seam to me that you don't use the variable @fullFileName in your script. It doesn't work with column like [First Name]


USE [DatabaseName]
GO
/****** Object: StoredProcedure [dbo].[spExportData_n] Script Date: 02/24/2012 17:09:03 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE proc [dbo].[spExportData_n]
(
@dbName varchar(100) = 'database name',
@sql varchar(8000) = 'select col1,col2,col3....col4 from table',
@fullFileName varchar(100) = 'output file path'
)
as
if @sql = '' or @fullFileName = ''
begin
select 0 as ReturnValue -- failure
return
end
-- if DB isn't passed in set it to master
select @dbName = 'use ' + @dbName + ';'
--print 'use'
if object_id('##TempExportData') is not null
drop table ##TempExportData
if object_id('##TempExportData2') is not null
drop table ##TempExportData2
-- insert data into a global temp table
declare @columnNames varchar(8000), @columnConvert varchar(8000), @tempSQL varchar(8000)

select @tempSQL = left(@sql, charindex('from', @sql)-1) + ' into ##TempExportData ' +
substring(@sql, charindex('from', @sql)-1, len(@sql))
--print '##TempExportData'
exec(@dbName + @tempSQL)
if @@error > 0
begin
select 0 as ReturnValue -- failure
return
end
-- build 2 lists
-- 1. column names
-- 2. columns converted to nvarchar
SELECT @columnNames = COALESCE( @columnNames + ',', '') + '['+ column_name + ']',
@columnConvert = COALESCE( @columnConvert + ',', '') + 'convert(nvarchar(4000),'
+ '['+ column_name + ']' + case when data_type in ('datetime', 'smalldatetime') then ',121'
when data_type in ('numeric', 'decimal') then ',128'
when data_type in ('float', 'real', 'money', 'smallmoney') then ',2'
when data_type in ('datetime', 'smalldatetime') then ',120'
else ''
end + ') as ' + '['+ column_name + ']'
FROM tempdb.INFORMATION_SCHEMA.Columns
WHERE table_name = '##TempExportData'

--print 'columnNames: ' + @columnNames
--print 'columnConvert: ' + @columnConvert

-- execute select query to insert data and column names into new temp table
SELECT @sql = 'select ' + @columnNames + ' into ##TempExportData2 from (select ' + @columnConvert + ', ''2'' as [temp##SortID] from ##TempExportData union all select ''' + replace(replace(replace(@columnNames, ',', ''', '''),'[',''),']','') + ''', ''1'') t order by [temp##SortID]'

--print '##TempExportData2'

exec (@sql)
print @sql
-- build full BCP query
DECLARE @bcpCommand VARCHAR(8000)
SET @bcpCommand = 'bcp " SELECT * from ##TempExportData2" queryout'
SET @bcpCommand = @bcpCommand + ' ' + @fullFileName + ' -w -T -U sa -P sa","-CRAW'
EXEC DatabaseName..xp_cmdshell @bcpCommand
--print 'bcpCommand'
if @@error > 0
begin
--print 'error>0'
select 0 as ReturnValue -- failure
return
end
drop table ##TempExportData
drop table ##TempExportData2
set @columnNames =' '
set @columnConvert =' '
set @tempSQL =' '
select 1 as ReturnValue

Blank said...

Awesome.... Thanks so much for code.. Works Fine

Shwetabh Sharma said...

Works great ... you saved my time.
Thanks alot

Dan said...

Hey, any idea on how to make long numbers use text formatting in excel to stop this export chucking in that fugly ass E to the power?