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

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SQL Subqueries: Simplified

SQL Subqueries: Simplified

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2 min read
When are PostgreSQL prepared statements fully prepared for execution?

When are PostgreSQL prepared statements fully prepared for execution?

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5 min read
Understanding the basics and advanced concepts of RDBMS and SQL for data science and analysis

Understanding the basics and advanced concepts of RDBMS and SQL for data science and analysis

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11 min read
Analysing Github Stars - Extracting and analyzing data from Github using Apache NiFi®, Apache Kafka® and Apache Druid®

Analysing Github Stars - Extracting and analyzing data from Github using Apache NiFi®, Apache Kafka® and Apache Druid®

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9 min read
MySQL: How to create One-to-Many Relationship

MySQL: How to create One-to-Many Relationship

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6 min read
The best SQL function you never heard of

The best SQL function you never heard of

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5 min read
🚀Batched Nested Loop to reduce read requests to the distributed storage

🚀Batched Nested Loop to reduce read requests to the distributed storage

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8 min read
Scalable Sequence for PostgreSQL

Scalable Sequence for PostgreSQL

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6 min read
Limpando dados antigos de um banco de dados multi-tenant

Limpando dados antigos de um banco de dados multi-tenant

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4 min read
The Benefits of Using a Graph Database Instead of SQL

The Benefits of Using a Graph Database Instead of SQL

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10 min read
One-page Database cheat sheet

One-page Database cheat sheet

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1 min read
Database 101: Data Consistency for Beginners

Database 101: Data Consistency for Beginners

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6 min read
SQL Commands Cheat Sheet

SQL Commands Cheat Sheet

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11 min read
Parallel export to CSV in YugabyteDB thanks to yb_hash_code() and PostgreSQL-compatibility

Parallel export to CSV in YugabyteDB thanks to yb_hash_code() and PostgreSQL-compatibility

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3 min read
Data Analytics at Potloc I: Making data integrity your priority with Elementary & Meltano

Data Analytics at Potloc I: Making data integrity your priority with Elementary & Meltano

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7 min read
Get the count of affected rows with ease: The power of the RETURNING clause in Postgres

Get the count of affected rows with ease: The power of the RETURNING clause in Postgres

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2 min read
SQL Cheet Sheat

SQL Cheet Sheat

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2 min read
SQL doesn't need the "Single Table Design" but Composite Primary Keys

SQL doesn't need the "Single Table Design" but Composite Primary Keys

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13 min read
What is database transaction?

What is database transaction?

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2 min read
Why a SQL Statement Often Consists of Hundreds of Lines, Measured by KBs?

Why a SQL Statement Often Consists of Hundreds of Lines, Measured by KBs?

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13 min read
IvorySQL - I've tested some Oracle-PostgreSQL compatibility of version 2.1

IvorySQL - I've tested some Oracle-PostgreSQL compatibility of version 2.1

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10 min read
Mapping your AWS attack surface

Mapping your AWS attack surface

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6 min read
Boost Your Query Performance with Function-Based Indexes in PostgreSQL

Boost Your Query Performance with Function-Based Indexes in PostgreSQL

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1 min read
Data Rollup in YugabyteDB🚀 and PostgreSQL🐘

Data Rollup in YugabyteDB🚀 and PostgreSQL🐘

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4 min read
INSERT ON CONFLICT returning old values

INSERT ON CONFLICT returning old values