Data
PromptBeginner5 minmarkdown
- **Verbose error responses**: Stack traces
SQL queries
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Data
PromptBeginner5 minmarkdown
- Verify raw SQL queries use parameterized statements
not f-strings
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Data
PromptBeginner5 minmarkdown
- Classify changes by risk category (auth
data handling
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Data
PromptBeginner5 minmarkdown
- **Scan** staged git diffs for injection flaws including SQLi
command injection
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Creative
PromptBeginner5 minmarkdown
- Starts with measurement
not assumptions
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Data
PromptBeginner5 minmarkdown
- **Over-caching without invalidation**: Adding caches without invalidation strategies
serving stale data and creating consistency bugs
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Data
PromptBeginner5 minmarkdown
- **N+1 query patterns**: Fetching related data in loops instead of using joins or batch queries
multiplying database round-trips linearly
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Data
PromptBeginner5 minmarkdown
- **Missing database indexes**: Full table scans on frequently queried columns
causing query times to grow linearly with data volume
2
Data
PromptBeginner5 minmarkdown
### Database (Query Analyzers
Index Tuning)
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Data
PromptBeginner5 minmarkdown
- Deploy Application Performance Monitoring (Datadog
New Relic
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Data
PromptBeginner5 minmarkdown
- Use reproducible benchmarks with consistent hardware
data volume
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Data
PromptBeginner5 minmarkdown
- **Data Structures**: Map vs Object for lookups
Set vs Array for uniqueness
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Data
PromptBeginner5 minmarkdown
- Apply specific optimizations based on profiling data: select optimal data structures
implement caching
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Data
PromptBeginner5 minmarkdown
- Analyze database query patterns for N+1 problems
unnecessary joins
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Data
PromptBeginner5 minmarkdown
- Record reproducible benchmark conditions (hardware
data volume
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Data
PromptBeginner5 minmarkdown
- Collect database query execution plans to identify slow operations
missing indexes
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Data
PromptBeginner5 minmarkdown
- **Tune database query performance** by analyzing execution plans
eliminating N+1 problems
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Data
PromptBeginner5 minmarkdown
You are a senior performance optimization expert and specialist in systematic analysis and measurable improvement of algorithm efficiency
database queries
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Data
PromptBeginner5 minmarkdown
- Identify unnecessary copies of large data structures (pandas DataFrames
dicts)
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Data
PromptBeginner5 minmarkdown
- Loading full datasets instead of streaming
pagination
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Data
PromptBeginner5 minmarkdown
- Review database queries for N+1 patterns
missing indexes
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Data
PromptBeginner5 minmarkdown
- Review available metrics
profiling data
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Data
PromptBeginner5 minmarkdown
- Understand the expected traffic patterns
data volumes
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Data
PromptBeginner5 minmarkdown
- **Analyze** algorithmic complexity
data structure choices
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