SQL

Syncs the live BellSoft Product Discovery API (Liberica JDK + Liberica NIK) into a local 4NF DuckDB database, with smart delta ingestion, integrity verification, and a picocli-based interactive UI.

Готовая база из 5 881 ответа по 21 тесту hh.ru - сдать с первой попытки https://it-mountain.ru/hh-tests

Open source web-based database management and SQL client written in Rust.

🐘🕶️ Anonymization & Data Masking for PostgreSQL

https://labs.dalibo.com/postgresql_anonymizer

Relational database management system that uses YottaDB as the data store

Dweb (TS) is a modern, type-safe ORM for TypeScript designed to make working with databases simple, expressive, and predictable. Inspired by the isiNdebele concept of ukudweba umqondo — “drawing an idea or concept” — Dwebs aims to give developers a clear way to model their data, build queries, manage relationships, and interact with databases without sacrificing type safety.

transqlate transpile SQL snippet from a dialect to another using an AST

Local agent-session record lake: Parquet + DuckDB over harness transcripts. Cost analytics, correction mining, simulation priors.

Use supabase-kt to talk to Postgres, authenticate users and upload files.

Supabase is an open-source alternative to Firebase built on PostgreSQL.

A view is a query saved with a name, which you then query as if it were just another table.

The where clause lets you request only the rows that meet a condition.

The join clause joins two tables by the column they share.

A SQL walkthrough of PostgreSQL row-level security policies.

The group by clause splits the table into groups and calculates a value for each group.

An entity is a table where each row has something that identifies it.

A foreign key is the column that points to the primary key of another table.

pgTAP is a unit-testing extension for Postgres — enable it, then use its assertion functions to verify your schema and your queries.

Sample PostgreSQL databases — AdventureWorks, airline flights, DVD rental, OMDB and Scott — used across the PostgreSQL activities.

Helm Charts for Postgresql Clusters with CNPG