5
votes
2answers
711 views

How can I save a severely fragmented database/table?

I've recently made a discovery that might explain my slow SQL run times. I found out that the default in SSMS is to allow mdf growth of 1MB at a time. When the size of one table alone is roughly 23 ...
1
vote
1answer
225 views

How should I distribute my tables for better performance from fragmentation point of view

I have a database on SQL Server 2008 R2 with about 20 non-indexed tables that are continuously undergoing INSERTs AND DELETEs. There are about 400,000 records @ 4KB/record being inserted or deleted ...
8
votes
3answers
4k views

What's better for large changes to a table: DELETE and INSERT every time or UPDATE existing?

I am making a project where I need to change around 36K records in one table daily. I'm wondering what will perform better: delete rows and insert new ones, or update already existing rows For me ...
2
votes
1answer
665 views

Optimising a Database Shrink (in terms of speed and reducing fragmentation)

We have a large database that has had a lot of older data stripped out, leaving primary datafile (all objects are currently in the primary filegroup) of about 80Gb containing a little less than 20Gb ...