问题
I've got about 13,000 AccountIDs that I need to pull various data from several data tables using left-joins. The total # of accountIDs is in the millions. I don't have write-access to the server but I was wondering if there was a way I could maybe create a custom/temporary table anyway and do a join to that rather than writing a really, really long Where AccountID in (.....) statement. The accountIDs are currently in a single Excel column so I'd have to get them back in the server somehow.
Thoughts?
回答1:
You can use OPENDATASOURCE to access your Excel file, but someone will have to push you the Excel file to the server (not ideal).
SELECT * FROM OPENDATASOURCE('Microsoft.Jet.OLEDB.4.0',
'Data Source=C:\DataFolder\Documents\TestExcel.xls;Extended Properties=EXCEL 5.0')...[Sheet1$] ;
You can ask your DBA team to install a SQl Server Client on your local machine and set up a linked server to the live server, and you are all set. Ask them to set up a view of the data you need, and give you access to the view. That's all you need, I guess.
来源：https://stackoverflow.com/questions/14774079/extra-long-where-in-statement-better-option