Delete oldest records from database

Question

I have a database with 1000 records. I am trying to create an SQL statement so if the number of records grows above 1000, then the oldest records are deleted (i.e. the new r

Answer 1

Assuming that your table has a Primary Key and a column with a timestamp indicating when the record was inserted), you can use a query along the lines of

delete from tableToDeleteFrom
where tablePK in 
(select tablePK 
from tableToDeleteFrom
where someThresholdDate <= @someThresholdDate)