Why does retrieving fewer rows take longer?
91423
How (and why) does TOP impact an execution plan?
21145
Return more than 2000 records (SOQL)
95611
Why file read is faster on reading again?
55559
Why more (and varying number of) logical reads with read ahead (prefetch)?
17662
What is the fastest way to insert large numbers of rows?
150
how to select first N rows from a table in T-SQL?
52259
Is SOQL query with ID condition optimized to work as limit 1?
128013
count() returns a different amount than a simple select
8237
How do I limit the number of rows returned by an Oracle query after ordering?
66201
Why is my query suddenly slower than it was yesterday?
11569
INSERT takes over 5 hours, when inserting more than specific number of rows
138284
Are individual queries faster than joins?
127553
Why is this MySQL SELECT performing so slowly despite indexing?
99497
IF EXISTS taking longer than embedded select statement
142368
Why does my procedure run slowly until I update statistics?
76065
How many rows in a database are TOO MANY?
40168
How to estimate the disk space for 1 million rows if I have a table of fewer rows in InnoDB MySQL