1
vote
1answer
62 views

Do regular ALTERs weaken the performance?

In a project, we need to frequently ALTER the tables to delete or add columns. I wonder if this weakens the database performance in long term. If it has a considerable negative impact, what is the ...
5
votes
2answers
261 views

Recommended structure? %70 write %30 read. 10M row. 200 query/sec. Select, update, insert, search

Followings are what I need to do on my project: 1- If a search term is new and unique, then add the search term 2- Show lastest searched 1000 search terms (I don't need to store dates of all search ...