MySQL - >带有LARGE表问题的SQL Server迁移助手

Question

I am trying to migrate my company's old MySQL database onto SQL Server 2008.

I'm using the SQL Server Migration assistant for MySQL software and everything works great except for the large tables (some containing about 150 million + rows) - It creates the schema, etc and when I select to migrate the data I get it staying stuck at Migrating myTable > myTable with 0 of 159216578 rows processed - It stays that way for about 1-2 hours then crashes and says it couldn't create an error file.

Are there any things / settings I can change to make this work? Is there a better way (I have access to the .frm , .MYD , .MYI files if there's something I can do that way too) - I'm open to anything so long as I get these tables migrated.

Thanks!!

Answer 1

I think you want to export about 10 milion rows at a time (depending on the MySQL hardware) using something in the WHERE clause that will allow you to separate the data (ID, date, etc).

SELECT * FROM Table1 WHERE ID BETWEEN x and y INTO OUTFILE 'C:\temp\data.csv';

You can use SQL Server Import/Export Wizard to get it into MSSQL.