We want to delete old orders from the database. Litium comes with the OrderCleanupScheduler task that can be used for this but it simply executes the sql statement delete dbo.ECommerce_Order where OrderDate < DATEADD(MONTH, {0}, GETDATE()) and OrderStatus in ({1}) which unfortunately takes a very long time to complete and locks the affected tables.
What’s your suggestion on how to delete a lot of orders from a production database without affecting performance?
Litium version: 7.4.2
Hi,
You can write own scheduled task that deletes an optiumum amount of orders and wait an optimum time before it starts again. For example: 100 orders and wait 15 minutes (have no idea about the number of orders that you want to delete).
There are two problems; that it takes such a long time to delete an order from the database, along with all related records from other tables, and that during that time there are locks on those tables. I guess it might be better to delete orders one at a time using e.g. a loop to have fewer locks but I’m no database expert. What do you think?
And about the time it takes to delete - do you have any suggestions or workarounds on how to speed up the deletions? We have a lot of orders and it takes about three-four seconds to delete one. Edit: It took six minutes to delete ten orders in one of our test databases in the Litium hosting environment.
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