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Published byDoreen Miller Modified over 5 years ago
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The Five Mistakes You are Probably Making with SQL Server
Kathi Kellenberger Auntkathisql.com @auntkathi
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Platinum Level Sponsors
Gold Level Sponsors Venue Sponsor Key Note Sponsor Pre Conference Sponsor
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Silver Level Sponsors Bronze Level Sponsors
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Evals!
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Who am I? Data Platform MVP Trainer Author Consultant
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Agenda Configuration Maintenance Reusability Index Strategy
SARGability
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Configuration
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Configuration Memory Parallelism Ad hoc workloads Database location
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Maintenance https://ola.hallengren.com/ Easy Knowledge required
Not flexible Better than no maintenance Maintenance Wizard Knowledge required Flexible Available on web Scripts
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Reusability
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Reusability Avoid Do Nested views
Scaler and multi-line functions that touch tables Do In-line table valued functions Stored procedures Temp tables
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Index Strategy
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Index Strategy Don’t blindly follow DTA or index suggestions
Avoid duplicate / overlapping indexes Remove unneeded indexes Avoid Key Lookups and Index Scans
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SARGability
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SARGability Avoid Do Functions on columns Implicit conversions
Query on secondary column Scan Do Rewrite WHERE clause Query on first column Seek
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Contact Information Kathi Kellenberger Auntkathisql.com @auntkathi
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