How to keep columns header on excel without change after export data to excel file?

[ahmedsa2018]

I work on sql server 2017 I run script depend on python language v 3.10 .

I need to export data to excel fileStudentExport.xlsx already exist and keep header wihout change after export.

header of excel file StudentExport.xlsx before export data to it as below

StudentId,StudentName
after run script query to export data to StudentExport.xlsx Header changed to

StudentId,Name
my issue is header changed from column name StudentName to Name (exist on sql)

Exactly I need Export data to excel StudentExport.xlsx and depend on header exist on excel file

not depend on columns header of table exist on Sql server .

I export data to excel by this line

InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1],index=False)
I try to change it to keep header on excel file StudentExport.xlsx without change as below

InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1], header=False, startrow= 1,index=False)
but it give me data without header and header row blank

blank header
1 ahmed
so can any one help me to export data to excel file without change or overwrite header ?

Notes Not practical way to change column name from Name to StudentName on sql server table create view to use it as excel header .

expected result

StudentId StudentName
1 ahmed
script Query I run it as below for lookup

----drop table #FinalExportList

declare @ExportPath NVARCHAR(MAX)='G:\ImportExportExcel'
declare @FixedPath NVARCHAR(MAX)='G:\ExportFiles\StudentExport.xlsx'
CREATE TABLE #FinalExportList(TableCount INT IDENTITY(1,1),Cols NVARCHAR(MAX),TableName NVARCHAR(200))
insert into #FinalExportList(TableName,Cols)
values
('dbo.students','TRY_CONVERT(VARCHAR(MAX),StudentId) AS [StudentId], Name')

DECLARE
@TableName NVARCHAR(200)
,@SQL NVARCHAR(MAX) = N''
,@PythonScript NVARCHAR(MAX) = N''
,@ExportFilePath NVARCHAR(MAX) = N''


SELECT @ExportPath = CASE WHEN RIGHT(@ExportPath,1) = '\' THEN @ExportPath ELSE CONCAT(@ExportPath,'\') END


-- Just for testing purpose top 10 records are selected
SELECT @SQL = CONCAT('SELECT TOP 10 ',Cols,' FROM ',TableName,';')
,@TableName = TableName
FROM #FinalExportList


SET @PythonScript = N'import shutil
FullFilePath = ExcelFilePath+"StudentExport.xlsx"
shutil.copy(FixedPath,ExportPath)
InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1],index=False)
'f

exec sp_execute_external_script
@language = N'Python'
,@script = @PythonScript
,@input_data_1 = @SQL
,@params = N'@ExcelFilePath NVARCHAR(MAX), @TableName NVARCHAR(200),@FixedPath NVARCHAR(MAX),@ExportPath NVARCHAR(MAX)'
,@ExcelFilePath = @ExportPath -- file path where Excel files are placed
,@TableName = @TableName
,@FixedPath=@FixedPath
,@ExportPath=@ExportPath
sql server table

CREATE TABLE [dbo].[students](
 [StudentId] [int] NOT NULL,
 [Name] [varchar](50) NULL,
  CONSTRAINT [PK_students] PRIMARY KEY CLUSTERED 
 (
 [StudentId] ASC
 )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
 ) ON [PRIMARY]
 GO
 INSERT [dbo].[students] ([StudentId], [Name]) VALUES (1, N'ahmed')

 

[SkipVought]

Hi,

Another possibility, no code required, is to query the database that this data is in directly in Excel via Data > Get external data > From other sources > From Microsoft Query...

This query is embedded in the sheet and can be Refreshed on demand.

The column header can be customized in the query to anything you like.

Skip,
[sub]
Just traded in my OLD subtlety...
for a NUance![/sub]
"The most incomprehensible thing about the universe is that it is comprehensible" A. Einstein

You Matter...
unless you multiply yourself by the speed of light squared, then...
You Energy!

 

[ahmedsa2018]

thank you fo reply
this is not solution
i need export data to excel file and header on excel keep without chqnge
as sample
excel file
studentid studentname

i export data with different header as
studentid name
1 ahmed
2 eslam

then finally expected result i need
studentid studentname
1 ahmed
2 elsam
this i need to do it by python script change
so please how to do it by python script
how to change python script below to do that
SET @PythonScript = N'import shutil
FullFilePath = ExcelFilePath+"StudentExport.xlsx"
shutil.copy(FixedPath,ExportPath)
InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1],index=False)
'f

 

[ahmedsa2018]

so can you please
SkipVought
help me to solve issue

 

[mikrom]

It looks like your script is creating the header in excel file from the column names of your table.
From the SQL code you posted

CREATE TABLE [dbo].[students](
 [StudentId] [int] NOT NULL,
 [[highlight #EF2929]Name[/highlight]] [varchar](50) NULL,
...

you have the table students with columns StudentId and Name, so the python script creates header StudentId, Name

If you want the header StudentId, StudentName then change the table column name from Name to StudentName or create the new table with that column

CREATE TABLE [dbo].[students](
 [StudentId] [int] NOT NULL,
 [[highlight #FCE94F]StudentName[/highlight]] [varchar](50) NULL,
...

Then populate the table with data and export it to excel using your python script

 

[ahmedsa2018]

i don't need to change column name from sql
i need to keep header on excel as it is without change
so please help me on that
my question can i keep header without change by python
when export data with different header

 

[ahmedsa2018]

when export data to excel i need to keep header exist before as it is without change
no need to change column name from sql server because every time i change header i will change column from sql server
so i need it dynamically and controlled by me

 

[ahmedsa2018]

i need solution from python
can i change this statment
InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1],index=False)
or modified it to
keep header excel without overwrite it from exported data

 

[mikrom]

you wrote above, that it changes your header

my issue is header changed from column name StudentName to Name

 

[ahmedsa2018]

yes
header changed on excel and i don't need to change it
excel file i export to it before exporg data
header is
studentid,studentname

after export data
heaer become
studentid,name
1 ahmed

i need it as below
studentid studentname
1 ahmed

 

[mikrom]

Then try to change the arguments from to_excel() method
from

InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1],index=False)

to:

InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1], [highlight #FCE94F]header = ["StudentId", "StudentName"][/highlight], index=False)

 

[ahmedsa2018]

yes your excellent this is what i need
but this is static
i don't need to get it static i need to get it dynamically from excel
can you help me get header from excel without write it
so if i write studentid,studentname on excel
then get it from excel
meaning header=what header on file already exist

 

[mikrom]

if it works then you are using the python module pandas

Here is the documentation of the method to_excel(). You can look what for parameters the method has:

https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.to_excel.html

 

[ahmedsa2018]

yes it works
if possible can you help me
to read header dynamically from excel
because may be this query applied for another table
so i need to read it from file dynamically
can you help me please
im beginner on python
so header will be as below

InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1], header = what header on file studentexport.xlsx, index=False)

 

[mikrom]

you provided only this part from the python script

import shutil
FullFilePath = ExcelFilePath+"StudentExport.xlsx"
shutil.copy(FixedPath,ExportPath)
InputDataSet.to_excel(FullFilePath,sheet_name=TableName.split(".")[-1],index=False)

but where is the part with import pandas or import pandas as pd ?

I would try to replace the above python code with this code defining the excel writer based on the existing Excel file

import shutil
FullFilePath = ExcelFilePath+"StudentExport.xlsx"
excel_writer = [highlight #FCE94F]pd[/highlight].ExcelWriter(FullFilePath, engine='xlsxwriter')
shutil.copy(FixedPath,ExportPath)
InputDataSet.to_excel(excel_writer,sheet_name=TableName.split(".")[-1],index=False)

or if it does not work try to change in the code above [highlight #FCE94F]pd[/highlight] to [highlight #FCE94F]pandas[/highlight]

 

[mikrom]

or define escel_writer without engine

instead of this

excel_writer = pd.ExcelWriter(FullFilePath, engine='xlsxwriter')

only this

excel_writer = pd.ExcelWriter(FullFilePath)

 

[mikrom]

Is it working or not ?

 

[ahmedsa2018]

No
not working
i try this first

SET @PythonScript = N'import shutil
import xlsxwriter
import pandas as pd
FullFilePath = ExcelFilePath+"StudentExport.xlsx"
excel_writer = pd.ExcelWriter(FullFilePath, engine=''xlsxwriter'')
shutil.copy(FixedPath,ExportPath)
InputDataSet.to_excel(excel_writer,sheet_name=TableName.split(".")[-1],index=False)
'
it give me result
StudentId Name
1 ahmed
2 eslam
3 mohamed
i also try pd.ExcelWriter without xlswrite as below

SET @PythonScript = N'import shutil
import xlsxwriter
import pandas as pd
FullFilePath = ExcelFilePath+"StudentExport.xlsx"
excel_writer = pd.ExcelWriter(FullFilePath)
shutil.copy(FixedPath,ExportPath)
InputDataSet.to_excel(excel_writer,sheet_name=TableName.split(".")[-1],index=False)
'
it give me header also as it is exist on sql as below

StudentId Name
1 ahmed
2 eslam
3 mohamed

but expected as

StudentId StudentName
1 ahmed
2 eslam
3 mohamed

so what i do t solve it

 

[mikrom]

And as before you tried it, was in the excel file StudentExport.xlsx
the right header StudentId StudentName ?

 

[ahmedsa2018]

yes
on excel file
header is
StudentId,studentName
but after export data
it become studentid,Name