Ask Use The Index, Luke!
A Guide to Database Performance by Markus Winand
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Questions Tagged With index
1
vote
2
answers
8.6k
views
"Order by RAND()" - can use Index?
Feb 23 '15 at 12:06
Markus Winand ♦♦
936
random
index
mysql
order-by-rand
0
votes
2
answers
3.6k
views
index for better performance for a merge operation
Feb 20 '15 at 11:43
antilet
1
merge
index
0
votes
1
answer
4.6k
views
PostgreSQL Bitmap Heap Scan on index is very slow but Index Only Scan is fast
Oct 31 '14 at 11:31
Markus Winand ♦♦
936
index
postgresql
postgres
sql
0
votes
2
answers
6.1k
views
different execution plans after failing over from primary to standby server
Sep 17 '14 at 11:46
Markus Winand ♦♦
936
oracle
index
update
0
votes
1
answer
2.9k
views
When INDEX SKIP SCAN is used
Mar 09 '14 at 14:30
Markus Winand ♦♦
936
access
index
path
scan
skip
-2
votes
0
answers
3.9k
views
range scan for (ID1,ID2)-eqjoin and range filter for T is slow with PK(ID1,ID2,T) and fast with IDX(ID1,ID2) - reality or fear?
Mar 07 '14 at 10:06
Markus Winand ♦♦
936
performance
index
1
vote
1
answer
23.9k
views
Should I always create a clustered index on a primary key?
Jan 28 '14 at 12:33
Markus Winand ♦♦
936
clustered
index
primary
key
1
vote
1
answer
4.1k
views
Query plan for Oracle 11g with date column in condition
Nov 26 '13 at 13:33
Vasilis
21
oracle
index
11g
date
1
vote
1
answer
3.8k
views
In clauses and how index is used
Nov 11 '13 at 10:42
Markus Winand ♦♦
936
performance
index
select
mysql
0
votes
2
answers
3.6k
views
query is not using indexes when i was tried creating the indexes on columns
Sep 03 '13 at 22:10
nmaqsudov
1
index
sql
query-speed
mysql
1
vote
3
answers
6.6k
views
Traversal of B-Tree data structures
Jul 11 '13 at 09:08
Teggy
31
index
btree
0
votes
2
answers
3.3k
views
Indexing during INSERT vs after INSERT
Mar 25 '13 at 19:25
Lukas
1
insert
innodb
index
pk
1
vote
2
answers
3.1k
views
Does MySQL manage big IN() statements well ?
Jul 18 '12 at 15:08
vaceletm
16
index
join
where
mysql
1
vote
1
answer
16.2k
views
Should 'id' (the primary key) be included in an index
Jan 03 '12 at 15:24
Jan
26
index
include
0
votes
1
answer
3.1k
views
Best index for a multiple join-tables and filter
Jan 03 '12 at 14:31
Markus Winand ♦♦
936
index
join
where
0
votes
2
answers
4.1k
views
How to find out how to speed-up nested query?
Dec 09 '11 at 15:01
Jan
26
index
mapreduce
sql
0
votes
3
answers
3.7k
views
Range select with two columns
Oct 14 '11 at 08:34
Markus Winand ♦♦
936
index
range
select