Is selecting fewer SQL columns making the request faster?
55584
select * vs select column
63636
Lock time not involved in MySQL slow query selection?
17093
Why are query results shortened in pgAdmin 1.18.1?
100381
Improve SQL Server query performance on large tables
86649
What's the most efficient way to select the last n rows in a table without changing the table's structure?
130239
Optimise PostgreSQL for fast testing
89441
Reduce query time for higher offset in sql server
135864
Does column ordering affects performance in Microsoft SQL Server 2012?
11223
quick selection of a random row from a large table in mysql
96731
SQL Server: Query fast, but slow from procedure
32341
MySQL pagination without double-querying?
94106
T-SQL Insert - Select in Table variable is very slow
125393
Confirm if sub-query is selective?
72529
Why insert-select to variable table from XML variable so slow?
10642
SQL Server - what isolation level for non-blocking select statements?
138284
Are individual queries faster than joins?
8316
Do frequent DML operations on a table with indexes and huge data affect SELECT query performance?