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Posts on tips and tricks, using and learning about SQL for database development and analysis.

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Why Do Database Indexes Slow Down INSERTs? (The B+ Tree Page Split Dilemma)

Why Do Database Indexes Slow Down INSERTs? (The B+ Tree Page Split Dilemma)

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2 min read
Your salary coverage can fall before employers change

Your salary coverage can fall before employers change

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7 min read
How to find missing IDs between two lists (and get the SQL for free)

How to find missing IDs between two lists (and get the SQL for free)

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2 min read
What one month of public benchmarks says about my text-to-SQL access layer

What one month of public benchmarks says about my text-to-SQL access layer

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2 min read
Zentro v0.10.0: Open-Core SQL IDE Built with Go + Wails

Zentro v0.10.0: Open-Core SQL IDE Built with Go + Wails

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3 min read
SQL Deep Dive: Window Functions, Joins, CTEs, and Subqueries

SQL Deep Dive: Window Functions, Joins, CTEs, and Subqueries

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7 min read
SQL Server Msg 1934: 'SET Options Have Incorrect Settings: QUOTED_IDENTIFIER' - Why It Happens and How to Fix It

SQL Server Msg 1934: 'SET Options Have Incorrect Settings: QUOTED_IDENTIFIER' - Why It Happens and How to Fix It

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8 min read
Architectural Deep-Dive: Enterprise Cross-Border E-Commerce Fraud & FinOps Engine on Microsoft Fabric

Architectural Deep-Dive: Enterprise Cross-Border E-Commerce Fraud & FinOps Engine on Microsoft Fabric

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3 min read
Database Indexing – Part 4: Covering vs. Composite Indexes in PostgreSQL – Which One Should You Use?

Database Indexing – Part 4: Covering vs. Composite Indexes in PostgreSQL – Which One Should You Use?

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11 min read
How to Track Schema Changes in PostgreSQL: DDL Logging, an Event Trigger or a Schema Snapshot

How to Track Schema Changes in PostgreSQL: DDL Logging, an Event Trigger or a Schema Snapshot

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9 min read
An AG replica goes SUSPENDED after patching. My fix was wrong; here is the corrected one.

An AG replica goes SUSPENDED after patching. My fix was wrong; here is the corrected one.

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3 min read
Dagster and dbt: do you need both?

Dagster and dbt: do you need both?

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2 min read
Following foreign keys in DBeaver, pgAdmin or IntelliJ: one row at a time

Following foreign keys in DBeaver, pgAdmin or IntelliJ: one row at a time

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2 min read
Coefficient of Variation in Python, JavaScript, R, SQL, and Rust

Coefficient of Variation in Python, JavaScript, R, SQL, and Rust

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3 min read
Twelve SELECTs for the list and six filtered counts for the page, and the only shared code is three SQL fragments

Twelve SELECTs for the list and six filtered counts for the page, and the only shared code is three SQL fragments

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7 min read
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