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

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🚀 hash+hash partitioning+sharding

🚀 hash+hash partitioning+sharding

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6 min read
Heterogeneous migration: reducing Dangdang’s customer system RTO 60x and increasing speed by 20%

Heterogeneous migration: reducing Dangdang’s customer system RTO 60x and increasing speed by 20%

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6 min read
Deep Insight Into Open Source Databases

Deep Insight Into Open Source Databases

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5 min read
Keeping track of database schema changes

Keeping track of database schema changes

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5 min read
Notes on PostgreSQL: Common Table Expressions

Notes on PostgreSQL: Common Table Expressions

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7 min read
SQL meet Data Science (Pandas) cheat sheet

SQL meet Data Science (Pandas) cheat sheet

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1 min read
Building TypeScript ORM

Building TypeScript ORM

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2 min read
SQL Has Evolved a Lot In Order To Meet New Challenges — But The Fundamentals Have Remained 🎙

SQL Has Evolved a Lot In Order To Meet New Challenges — But The Fundamentals Have Remained 🎙

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1 min read
How To Access PostgreSQL Globally in Windows

How To Access PostgreSQL Globally in Windows

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2 min read
Spring Boot Performance Workshop with Vlad Mihalcea

Spring Boot Performance Workshop with Vlad Mihalcea

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11 min read
Setup a Testing Environment with Docker and Pytest-Django: PostreSQL schema issue

Setup a Testing Environment with Docker and Pytest-Django: PostreSQL schema issue

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2 min read
A Second Walk Through of Composing a SQL Query

A Second Walk Through of Composing a SQL Query

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4 min read
Koa Js : Part 4 - Connect a Relational SQL database to your Koa server

Koa Js : Part 4 - Connect a Relational SQL database to your Koa server

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8 min read
status 22003 no banco de dados

status 22003 no banco de dados

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3 min read
How to find useless foreign keys in a database

How to find useless foreign keys in a database

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2 min read
Resolvendo problema de performance no PostgreSQL com CTE

Resolvendo problema de performance no PostgreSQL com CTE

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4 min read
QL to query convert chrome time stamp to epoch milliseconds

QL to query convert chrome time stamp to epoch milliseconds

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1 min read
Dev Discussions: SQL vs NoSQL with James Quick of PlanetScale

Dev Discussions: SQL vs NoSQL with James Quick of PlanetScale

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4 min read
SQL Server Database Partitioning

SQL Server Database Partitioning

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4 min read
Nested Loop performance in YugabyteDB

Nested Loop performance in YugabyteDB

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12 min read
Walk Through of Using Postgresql and Blazer to Generate a Cohort Report

Walk Through of Using Postgresql and Blazer to Generate a Cohort Report

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5 min read
SQL-Quick tip #15 - Random dates

SQL-Quick tip #15 - Random dates

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2 min read
With Dynamic SQL Queries on TypeScript & NodeJS

With Dynamic SQL Queries on TypeScript & NodeJS

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1 min read
SQLite vs PostgreSQL

SQLite vs PostgreSQL

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1 min read
Predictable plans with pg_hint_plan full hinting

Predictable plans with pg_hint_plan full hinting

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10 min read
How to use SQL Server T-SQL function CHARINDEX in SQL queries

How to use SQL Server T-SQL function CHARINDEX in SQL queries

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6 min read
Generating nicely parsed schema files with pg_dump_schema_parser

Generating nicely parsed schema files with pg_dump_schema_parser

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2 min read
Working With JSON Objects Using SQL

Working With JSON Objects Using SQL

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3 min read
Quickly get short stack from a YugabyteDB tserver

Quickly get short stack from a YugabyteDB tserver

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2 min read
Lessons learnt from the 8 week sql challenge: string_agg

Lessons learnt from the 8 week sql challenge: string_agg

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1 min read
YugabyteDB range sharding: ASC or DESC? (Backward Scan in🚀)

YugabyteDB range sharding: ASC or DESC? (Backward Scan in🚀)

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5 min read
SQL-Quick tip #13 - Index usage

SQL-Quick tip #13 - Index usage

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1 min read
Recreating MYSQL's LPAD Function in SQL Server

Recreating MYSQL's LPAD Function in SQL Server

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4 min read
Hack The Box Writeup: Cronos

Hack The Box Writeup: Cronos

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10 min read
ORMs in JavaScript

ORMs in JavaScript

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5 min read
SQL-Quick tip #14 - Server information

SQL-Quick tip #14 - Server information

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1 min read
Your Guide to DistSQL Cluster Governance Capability——Apache ShardingSphere Feature Update

Your Guide to DistSQL Cluster Governance Capability——Apache ShardingSphere Feature Update

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9 min read
Adding Reproducible Randomization to SQL Queries

Adding Reproducible Randomization to SQL Queries

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5 min read
Mental Model For SQL Joins

Mental Model For SQL Joins

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1 min read
ERROR: Timed out: BackfillIndex RPC

ERROR: Timed out: BackfillIndex RPC

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3 min read
Some Teradata SQL Fun with Dates Differing by Months

Some Teradata SQL Fun with Dates Differing by Months

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15 min read
Howto handle index key specification without a key length and key was too long

Howto handle index key specification without a key length and key was too long

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4 min read
Query compressed logs that are stored in S3 using AWS Athena

Query compressed logs that are stored in S3 using AWS Athena

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5 min read
Build a PostgreSQL Docker image with pg_hint_plan and pg_stat_statements

Build a PostgreSQL Docker image with pg_hint_plan and pg_stat_statements

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2 min read
Improving performance in a hierarchical SQL table structure with column propagation

Improving performance in a hierarchical SQL table structure with column propagation

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9 min read
YugabyteDB Predicate Push Down

YugabyteDB Predicate Push Down

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6 min read
Como criar um banco de dados mariaDb com docker

Como criar um banco de dados mariaDb com docker

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3 min read
Supabase Custom Claims

Supabase Custom Claims

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7 min read
1 million rows insert

1 million rows insert

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5 min read
🔓 tracing writes and locks in YugabyteDB

🔓 tracing writes and locks in YugabyteDB

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6 min read
Parsing YugabyteDB version()

Parsing YugabyteDB version()

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2 min read
pg_stat_statements in YugabyteDB

pg_stat_statements in YugabyteDB

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2 min read
Is software immortal? And can we hide columns in Postgres?

Is software immortal? And can we hide columns in Postgres?

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5 min read
PostgreSQL: An example of using WITH clauses to decompose the problem

PostgreSQL: An example of using WITH clauses to decompose the problem

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2 min read
SQL Interview Questions CheatSheet

SQL Interview Questions CheatSheet

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7 min read
STARTING WITH POSTGRESQL AND VALENTINA STUDIO THROUGH CLI

STARTING WITH POSTGRESQL AND VALENTINA STUDIO THROUGH CLI

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3 min read
SQL Schema in Django Models

SQL Schema in Django Models

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1 min read
Announcing Atlas Project Files

Announcing Atlas Project Files

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3 min read
How To Prevent SQL Injection In PHP: Three Essential Methods

How To Prevent SQL Injection In PHP: Three Essential Methods

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4 min read
5 tips to optimize your CQL queries

5 tips to optimize your CQL queries

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5 min read
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