Milos Radivojevic is Microsoft Data Platform MVP (x8) located in Vienna, Austria. He is Head of MSSQL Database Engineering at Entain. He is very actove in the SQL Server cmmunity: he is co-founder of the SQL Pass Austria and speaks regularly at local and international database conferences. He is also co-author of three SQL Server books: Mastering SQL Server 2017, SQL Server 2017 Developer’s Guide and SQL Server 2016 Developer’s Guide.

Sessions

Previous Sessions

In this presentation it will be clarified when and why parameter sniffing is a problem in SQL Server stored procedures. Of course we will offer several solutions for this problem and discuss which solution is applicable in which scenario.
In this section we will show how to avoid performance problems caused by poor query design (functions in WHERE clause, data type conversions…) and explain how local variables and parameters affect the generation of execution plan.
SQL Server optimizer doesn't use and index seek for execution of your query although the query is high selective? What is better, when and why: LIKE vs: SUBSTRING, IN vs. EXISTS, SUBQUERY vs. JOIN. Why you should not use the UPPER or LOWER functions?
In this session we will advice how to avoid common developer mistakes and show how bad designed queries reduce the SQL Server optimizer's capabilities for choosing an optimal execution plan.
Your stored procedure is slow in the application, but works perfect in SSMS! In this presentation it will be clarified why this happens and we will offer several solutions for this problem and discuss which solution is applicable in which scenario.
Nowadays many companies don't have dedicated developer positions. Therefore the most of the SQL code has been written by application developers. In this session we will cover the most important things they need to know about SQL Server.
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