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

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MySQL Queries: Basics of MySQL

MySQL Queries: Basics of MySQL

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9 min read
Book summary: SQL Antipatterns

Book summary: SQL Antipatterns

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Comments 1
9 min read
SQL Server Query Optimizer. And how it can hang your business.

SQL Server Query Optimizer. And how it can hang your business.

3
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8 min read
Expect the unexpected...

Expect the unexpected...

1
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5 min read
My first CRUD in Python without ORM

My first CRUD in Python without ORM

3
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4 min read
Read local partition first, then global if not found locally

Read local partition first, then global if not found locally

5
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7 min read
Django eficiente - select_related

Django eficiente - select_related

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3 min read
how to search jsonb column in Postgresql ( not nested column )

how to search jsonb column in Postgresql ( not nested column )

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1 min read
Is it possible to reference one column as multiple foreign keys? ( PostgreSQL )

Is it possible to reference one column as multiple foreign keys? ( PostgreSQL )

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1 min read
SQL Injection Hacker Challenge

SQL Injection Hacker Challenge

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3 min read
MariaDB Quick-tip #8 - All foreign key constraints

MariaDB Quick-tip #8 - All foreign key constraints

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1 min read
The Principle of Apache Doris SQL Parsing

The Principle of Apache Doris SQL Parsing

3
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13 min read
Now AWS supports setting up connectivity between your RDS database and EC2 compute instance in 1-click

Now AWS supports setting up connectivity between your RDS database and EC2 compute instance in 1-click

6
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2 min read
How Would You Make It: Efficient and optimized way of tracking unread message per user

How Would You Make It: Efficient and optimized way of tracking unread message per user

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5 min read
pg_hint_plan with subqueries

pg_hint_plan with subqueries

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4 min read
Cost Explorer Isn't the Answer

Cost Explorer Isn't the Answer

1
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6 min read
MariaDd Quick-tip #10 - Select table definition

MariaDd Quick-tip #10 - Select table definition

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2 min read
O que é ORM - Mapeamento objeto-relacional

O que é ORM - Mapeamento objeto-relacional

5
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2 min read
Calculate average delta change in KPIs over a period of time.

Calculate average delta change in KPIs over a period of time.

1
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2 min read
Data Engineering 101:Introduction to Data Engineering

Data Engineering 101:Introduction to Data Engineering

5
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3 min read
Online SQL Client for low code data management

Online SQL Client for low code data management

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Comments 1
5 min read
SQL - Foundation of Databases

SQL - Foundation of Databases

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5 min read
ActiveRecord (a Ruby gem): Common Methods

ActiveRecord (a Ruby gem): Common Methods

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4 min read
Parallelizing aggregates in YugabyteDB

Parallelizing aggregates in YugabyteDB

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4 min read
Introduction to data engineering

Introduction to data engineering

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4 min read
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