Markus Winand

Markus Winand has asked 0 questions and find answers to 37 problems.

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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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MySQL performance gain by reducing index size?
Postgres ignoring clustered index on date query
How to use index efficienty in mysql query
Should I always prefer working with prepared SQL statements, for performance benefits?
SQL server filtered indexes
Using the "IN" clause with a comma delimited string from the output of a replace() function in Oracle SQL
SQL queries within a loop
Why "first" or "any" aggregate functions are not commonly used in database engines?
What is the best practice database design for transactions aggregation?
Index in two columns range comparisson within the same table