SQL Practice: Queries to Analytics

Customer Referral Eligibility

Employee Low Bonus Audit

Large-Country Screening Report

Medal Table Ranking with Cascading Tie-Breakers

Person Directory Address Join

Product Price Row Expansion by Store

Segment Triplet Triangle Feasibility

Self-Viewed Article Authors Report

Three-School Unique Delegate Triplets

Triangle Shape Classification by Side Lengths

Experiment Run Count Grid by Platform and Study

Pairwise Seat Swap Ledger

Adaptive Product Price Unpivot by Active Store Set

Adjacent Free Seat Finder

Binary Hierarchy Node Role Tagging

Double Round-Robin League Fixtures

Employee Identity Bridge Report

Exclusive Flagship Buyer Report

Hierarchy Node Role Classification

Inventory Net Present Value Lookup

Metal-Nonmetal Bond Candidate Matrix

Product Yearly Price Report

Reports Paid More Than Their Managers

Students Linked to Retired Departments

Axis-Aligned Rectangle Opposite-Corner Areas

Direct Connections Without Shared Contacts

Friend-Liked Page Suggestions

Three-Topping Pizza Bundle Pricing

Top Sellers by Distinct Cross-Brand Items

Variable Expression Truth Evaluation

Accounts Above Net Balance Threshold

Ad Campaign Click-Through Rate Ranking

Artist Presence Frequency on Streaming Chart

Average Process Duration by Machine

Cities Above National Housing Average

Compressed Order Mean Estimator

Contest Participation Rate by Event

Count Customers with Any High-Value Bill

Daily Brand Lead-Partner Reach Summary

Data Scientist Core Skill Shortlist

Department Monthly Revenue Pivot Report

Direct Report Metrics by Manager

Engineering vs Marketing Peak Salary Gap

Flight Seat Occupancy and Wait Queue Summary

Follower Base Size by User

Frequent Actor-Director Collaboration Pairs

High-Enrollment Classes Report

Highest Unique Signal Value

Immediate Dispatch Preference Percentage

Instructor Distinct Subject Count

Most Orders Customer

Player First Login Device

Player First Login Snapshot

Product Invoice Financial Rollup

Product Quantity Rollup by SKU

Project Team Experience Averages

Projects With Maximum Team Size

Query Relevance Score and Low-Rating Share

Rider Distance Leaderboard

Session Duration Bucket Distribution

Store Price Matrix by Product

Student-Subject Exam Attendance Matrix

User Spending Ranked by Basket Value

User Total Ride Distance Report

Visitors Without Checkout Activity

Warehouse Storage Volume by Facility

Yesterday Reported Post Reason Summary

Account Manager Revenue Influence Score

Active Profile Follower Connectivity Report

Age Cohort Message Action Time Share

Busiest Airport by Total Flight Traffic

Class Score Spread Analyzer

Company Salary Post-Tax Adjustment

Cross-Sell Candidates: Bought A and B, Not C

Customers With Complete Product Coverage

Daily Spam Report Clearance Rate

Department Enrollment Totals

Top Earners by Department

Driver-Passenger Role Crossover Frequency

Election Winner by Vote Count

Frequent Co-Purchase Product Pair Recommendations

High-Overlap Friendship Pairs

Investment-Ready Countries by Call Duration

League Performance Metrics by Team

Major Tournament Title Tally per Player

Member Engagement Tier by Visit-Purchase Conversion

Monthly Country Approval and Chargeback Reconciliation

Monthly Country Transaction Health Summary

Monthly Department vs Company Salary Benchmark

Most Connected User by Accepted Requests

Nearest Point Pair Distance in 2D

Nested Fruit Container Inventory Totals

Net Credit Balance and Limit Alerts

Order Peak Over Global Average

Permission Bitmask Consensus Audit

Project Assignment Seniority Leads

Qualified Interview Candidates by Experience and Round Score

Realized Gain/Loss by Stock Symbol

Retain Orders with Customer Priority Rule

Same-Day Multi-Article Viewers

School Admission Cutoff Score Planner

Signup Confirmation Success Rate by User

Social Page Recommendations with Friend Signals

Team Leads with Five Plus Direct Reports

Trial-to-Paid Engagement Averages

User Pairs with Peak Shared Followers

Co-Listening Friend Recommendation Pairs

Daily User Platform Spend Segmentation

Friend Pairs with High Same-Day Song Overlap

Half-by-Half Team Passing Control Index

Highest-Value Invoice Line Breakdown

Priority Warehouse Stock Maximization

Team Workload Outlier Project Assignments

User Network Reach Percentage

Account Count by Income Tier

Campus Excellence Challenge Winner

Canonical User Display Name Formatter

Cinema Highlight Feed

Commercial Email Domain Census

Customers With Net-Positive Revenue in 2021

Customers Without Purchase Activity

Daily Distinct Product Rollup

Deduplicated Email Registry

DotCom Email Compliance Audit

Dual Loan Category Qualification

Employee Home Department Resolution

Employee Record Completeness Audit

Enterprise User Email Policy Filter

Library Books Awaiting Ratings

Low Approval Problem Audit

Low-Salary Employees with Departed Managers

Message Length Policy Violations

Payroll Gender Code Toggle Report

Product Descriptions with Valid Serial Tokens

Professional Name Tag Formatter

Repeated Email Detector

Rule-Based Employee Bonus Allocation

Sales Reps Without RED Orders

Social Feed Compliance Screening

Sustainable Low-Fat Recyclable Product Filter

Type-1 Diabetes Code Screening in Patient Records

Unique Comment Count by Post

Call Metrics by Contact Pair

Coordinate Reflection Pairs

Daily Transaction Parity Ledger

DNA Sequence Pattern Signal Audit

Invoice Contact Trust Coverage Report

Major Curriculum Perfect-A Scholars

Connection Invite Acceptance Ratio

Standalone Market Term File Coverage

State City Roster with Initial-Letter Match

Daily Unbanned Trip Cancellation Rate

Dynamic Store Price Pivot Map

Invalid IPv4 Access Log Census

Polynomial Equation String Builder

Post Topic Resolution from Keyword Signals

Bike Fleet Last Usage Timestamp

Buyer Yearly Order Volume Report

Calendar Date Long-Format Renderer

Country November Climate Banding

Daily Office Minutes by Employee

Daily Temperature Increase Detector

Day-Two Signup Verification Users

Discount-Eligible User List in Policy Window

Dual-Month Customer Spend Qualification

February 2020 Bulk Product Order Report

Friday Spend Snapshot by Week

Inactive Sellers in 2020

June Kid-Friendly Movie Broadcast Catalog

Latest 2020 Access Snapshot by User

Monthly Canonical Product Sales Rollup

Monthly High-Value Order and Buyer Counts

Product Period Weighted Average Price

Quarter-Only Product Sales Report

Rolling Thirty-Day Daily Active Users Report

Uninterrupted Playback Sessions

Concurrent Multi-IP Session Violations

Daily First-Time Login User Count

Daily Fruit Sales Delta Report

Daily Immediate Delivery Share

Discount-Eligible Users in Policy Window

Employees Below Monthly Required Hours

First-Order Immediate Delivery Percentage

Friday Membership Weekly Spend Matrix

Player Day-After Retention Rate

Products With Sustained Annual Order Volume

Review Leader and February Top Movie

Shift Collision Audit

Six-Minute Interval Order Rollup

Subscribed Accounts Without 2021 Streaming Activity

Task Submission Split: Weekend vs Working Days

Thirty-Day Active Session Average

Annual Product Spend Growth Ledger

Employee Rolling Payroll Summary

Install Cohort Day-1 Retention Report

Monthly Driver Utilization Percentage

November Friday Spending Rollup

Weekly Category Sales Matrix

Latest Employee Compensation Snapshot

Minimum Coordinate Gap on a Line

Rapid Repeat Confirmation Requesters

State City Directory Rollup

Team Headcount by Member

Top Seller Total Revenue Report

Accelerated Hiring Shortlist from Contest Medal History

Account Running Balance Timeline

Accounts with Consecutive Income Breaches

Active Users by Seven-Day Repeat Purchases

As-Of Product Price Snapshot

City Peak Calling Hour Report

Continuous Log ID Range Boundaries

Customer Purchase Behavior Command Center

Daily Cumulative Scores by Gender

Daily Peak Transaction IDs

Department Exam Percentile Ranking

Department Leaders in Maximum-Size Teams

Department Runner-Up Salary Members

Earliest Peak Degree Day Per City

Employee Runner-Up Salary Lookup

February Hashtag Momentum Leaderboard

First-Year Product Sales Snapshot

Fleet Parking Fee and Duration Summary

Fuel-Type Top Driver Performance

Gender Cycle Display Order

Identify Repeat Buyers Within Seven Days

Independent Column Order Reconciliation

Largest Gap Between User Visits

Last Passenger Within Bus Weight Limit

Latest Order Day Per Product

Latest Three Orders Per Customer

Leaderboard Dense Score Ranking

League Standings from Match Results

League Table Points and Shared Rank Positions

Longest Available Seat Segments

Low-Demand Catalog Titles

Mid-Band Activity Participation Report

Multi-Signal Above-Benchmark Businesses

N-th Distinct Salary Lookup

Passenger Boarding Count Per Bus

Penultimate User Activity Snapshot

Player Cumulative Gameplay

Qualified Policy Investment Sum

Ranking Shift After Point Updates

Repeated Log Value Streaks

Rolling Weekly Revenue Trend Report

Salary Band Team Assignment

Seasonal League Table with Multi-Key Tie-Breaks

Server Fleet Full-Day Uptime

State Top Fraud Band Claims

Student Best Grade Course Selection

Student Subject Improvement Audit

Survey Answer Rate Leader

Sustained Login Streak Users

Third Transaction Spend Spike Detector

Top Call Durations by Direction

Top Reordered Products by Customer

User Consecutive Three-Day Step Average

User Product Spend Leaderboard with Tie Support

Weighted Election Results from Split Ballots

Annual Service Stability Period Report

Company Median Salary Rows

Consistently Mid-Range Exam Performers

Continental Student Roster Pivot

Country Wine Podium Report

Customer Transaction Momentum Windows

Customers With Longest Consecutive Transaction Streak

Daily First-Last Call Counterpart Match

Department High-Earner Bands

Employee Shift Overlap Intensity Audit

Employee Work Coverage and Peak Load

Flight Booking Confirmation Status

Frequency-Weighted Median Estimator

Group Stage Points Champions

Hall Event Overlap Consolidation

League Table Position and Tier Banding

Major Track Honors Student Filter

Player Peak Win Run

Priority Budget Hiring Plan

Project Candidate Skill Fit Ranking

Rolling Quarter Ride Metrics

Seller Second-Item Brand Affinity Audit

Senior-Priority Budget Hiring Plan

Stadium High-Attendance Sequences

Team Internal Pass Streak Maxima

Terrain Rainwater Retention Analysis

Users with Repeat Session Type Within 12 Hours

Viewer-to-Streamer Session Conversion

Catalog Products with Isolated Three-Digit Blocks

Word-Start Case Normalization with Space Preservation

Customer ID Gap Detector

February Posting Burst Detector

Order Log Forward Fill for Missing Drink Labels

Workforce Chain to Company Head

Annual Product Sales by Calendar Year

Circular Secret Santa Chain Ledger

Customers With Strict Annual Purchase Growth

Executive Reporting Depth and Compensation Delta

February Hashtag Trend Leaderboard

Monthly Driver Capacity and Completed Trip Totals

Segment-Wise Content Case Normalization

Task Execution Gap Detector

Visit Transaction Frequency Distribution