Hey folks, I’ve got a migration project that’s giving me a headache. I’m using a tool that looks at the old database and creates scripts to move data to the new one. It works fine for small stuff, but some tables have hundreds of thousands of records. The script files are huge, like 80 MB!
I’m not sure how to run these big scripts efficiently. Is there a good way to do this? Maybe some SQLCMD trick I don’t know about?
I thought about splitting the scripts into smaller chunks, but I really don’t want to run a ton of separate scripts for one migration. It seems like a hassle.
Any ideas on how to handle this without losing my mind? Thanks in advance for any tips!
hmmm, have u considered table partitioning? it can break massive tables into smaller chunks, easing migration. what type of data u migrate? using parallel processing might also speed things up. any thoughts on combining these strategies in your case?
Having dealt with similar large-scale migrations, I’d recommend using SQL Server Integration Services (SSIS) for handling massive data transfers. It’s designed for ETL processes and can efficiently move large volumes of data between databases.
One key advantage of SSIS is its ability to process data in chunks, which helps manage memory usage and improves performance. You can set up data flows that read from your source tables and write to the destination in batches, reducing the strain on your system.
Another approach worth considering is using the bcp utility for bulk data operations. It’s a command-line tool that can quickly export and import large datasets. You could script the process to automate the migration of multiple tables.
Regardless of the method you choose, always test your migration process thoroughly on a subset of data before attempting the full migration. This will help you identify and resolve any potential issues early on.
yo, have u tried using sqlbulkcopy? it’s pretty sweet for big data moves. way faster than regular inserts. just set a decent batchsize and you’re good to go. might wanna look into data compression too if space is an issue. good luck with ur migration, man!