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Designing PostgreSQL HA with Patroni, etcd, and HAProxy in Multi-Zone Linux Clusters

Designing PostgreSQL HA with Patroni, etcd, and HAProxy in Multi-Zone Linux Clusters

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8 min read
CVE-2026-107823: How a Crafted Username Becomes MariaDB Security Metadata

CVE-2026-107823: How a Crafted Username Becomes MariaDB Security Metadata

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3 min read
SQL Concepts Using Hospital Data

SQL Concepts Using Hospital Data

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15 min read
MariaDB's FILE Privilege Is a Filesystem Primitive: CVE-2026-107814 and CVE-2026-107818

MariaDB's FILE Privilege Is a Filesystem Primitive: CVE-2026-107814 and CVE-2026-107818

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3 min read
An append-only, hash-chained audit log in SQLite, and a script to check it

An append-only, hash-chained audit log in SQLite, and a script to check it

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3 min read
Enable RSA key-pair based authentication - GoldenGate to Snowflake (On Premise)

Enable RSA key-pair based authentication - GoldenGate to Snowflake (On Premise)

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7 min read
5 SQL Window-Function Exercises Taken From Real Business Problems

5 SQL Window-Function Exercises Taken From Real Business Problems

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3 min read
Writing SQL in Go Without Losing Type Safety: An Introduction to sqlc

Writing SQL in Go Without Losing Type Safety: An Introduction to sqlc

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2 min read
I Migrated a Cloudflare Agents Workspace and Measured Everything: What Changes When the Storage Format Changes?

I Migrated a Cloudflare Agents Workspace and Measured Everything: What Changes When the Storage Format Changes?

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15 min read
Building an Offline-First Bible Reader on iOS: Bundled SQLite, Full-Text Search and iCloud-Synced Notes

Building an Offline-First Bible Reader on iOS: Bundled SQLite, Full-Text Search and iCloud-Synced Notes

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12 min read
# Stop Breaking Your Next.js App: NextAuth Setup in App Router (with MongoDB)

# Stop Breaking Your Next.js App: NextAuth Setup in App Router (with MongoDB)

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2 min read
How to Auto-Update an updated_at Column: MySQL ON UPDATE vs a Database Trigger vs the ORM

How to Auto-Update an updated_at Column: MySQL ON UPDATE vs a Database Trigger vs the ORM

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10 min read
SQLite Ignored My ON DELETE CASCADE: Foreign Keys Are Off Until Each Connection Turns Them On

SQLite Ignored My ON DELETE CASCADE: Foreign Keys Are Off Until Each Connection Turns Them On

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8 min read
PostgreSQL 17 VACUUM Overhaul: Adaptive Radix Trees End the 1GB Limit

PostgreSQL 17 VACUUM Overhaul: Adaptive Radix Trees End the 1GB Limit

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2 min read
Designing data-intensive applications: replication, partitioning, quorums

Designing data-intensive applications: replication, partitioning, quorums

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4 min read
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