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For a Simple Select, At what point do indexes considerably speed up the query?

May 10 at 08:58 dsfsfe(suspended)
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1
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1.4k
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query regd the CBO decision

May 10 at 08:57 dsfsfe(suspended)
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1
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248
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Index search using the concatenated index and SECOND column in WHERE clause.

Apr 15 at 13:45 Markus Winand ♦♦321
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1
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284
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A set of questions on the book..

Apr 15 at 11:24 Dmitry26
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2
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1.2k
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Indexing during INSERT vs after INSERT

Mar 25 at 19:25 Lukas1
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1
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405
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query is not using indexes when i was tried creating the indexes on columns

Feb 23 at 17:25 sql_sniffer1
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1
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473
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DELETE Problem

Feb 08 at 12:34 dx0516
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1
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878
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Traversal of B-Tree data structures

Oct 08 '12 at 22:26 Hiawatha21
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1
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1.0k
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Why do bind parameters affect performance?

Sep 28 '12 at 22:27 Hiawatha21
1
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1
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489
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Performance of conditional join

Sep 28 '12 at 16:24 Markus Winand ♦♦321
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2
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963
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Does MySQL manage big IN() statements well ?

Jul 18 '12 at 15:08 vaceletm16
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1
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3.3k
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Updating multiple rows using a subquery in SQL

Jun 30 '12 at 11:43 Camille(suspended)
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3
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3.0k
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Examples for Function Based Indexes?

Mar 25 '12 at 15:52 Castorp1
1
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1
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1.4k
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Should 'id' (the primary key) be included in an index

Jan 03 '12 at 15:24 Jan26
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1
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982
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Best index for a multiple join-tables and filter

Jan 03 '12 at 14:31 Markus Winand ♦♦321
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2
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1.1k
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How to find out how to speed-up nested query?

Dec 09 '11 at 15:01 Jan26
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2
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1.0k
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QUERYING SAME TABLE IN ALL DATABASES

Nov 14 '11 at 02:23 seyfigo1
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2
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2.3k
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"Order by RAND()" - can use Index?

Oct 31 '11 at 11:57 Imagin(suspended)
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3
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1.3k
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Range select with two columns

Oct 14 '11 at 08:34 Markus Winand ♦♦321
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1
answer
879
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Multi-table select OR join?

Oct 11 '11 at 14:58 Markus Winand ♦♦321
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1
answer
2.1k
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SQL Memory

Jul 05 '11 at 11:44 Markus Winand ♦♦321
1
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1
answer
1.6k
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FIltering by Count in MySQL

Jul 05 '11 at 10:26 Markus Winand ♦♦321
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2
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3.0k
views

Having Date of Birth, how to use an index for a lookup by age?

Mar 03 '11 at 01:12 Markus Winand ♦♦321
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2
answers
2.3k
views

The Birthday Problem

Feb 18 '11 at 00:58 Markus Winand ♦♦321
1
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1
answer
1.7k
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Correct ordering in a tree based structure

Feb 17 '11 at 02:25 Markus Winand ♦♦321
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1
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2.0k
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What is Ask.Use-The-Index-Luke.com?

Aug 20 '10 at 02:58 Markus Winand ♦♦321
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