Database Administrators
Markus Winand's user avatar
Markus Winand's user avatar
Markus Winand's user avatar
Markus Winand
  • Member for 12 years, 4 months
  • Last seen more than a month ago
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About

Markus Winand teaches efficient SQL—inhouse and online. He minimizes the development time using modern SQL and optimizes the runtime with smart indexing—for that he also published the book SQL Performance Explained.

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29
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Top posts
All Questions Answers
Score Newest
answer
14
Should I separate frequently updated columns?
Apr 9, 2013
answer
7
Why is multiple independent index always better than concatenated index
Jan 20, 2014
answer
4
Are these good indexing guidelines?
Nov 15, 2011
answer
4
why would rebuild index reduce btree leaf numbers
Jan 21, 2014
answer
1
Group by x, get other fields too (comparing options and performance)
Sep 22, 2021
Top network posts
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35
Cluster and Non cluster index in PostgreSQL
32
LISTAGG function: "result of string concatenation is too long"
27
Do NoSQL databases use or need indexes?
25
NULL value count in group by
19
MySQL: comparison of integer value and string field with index

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