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

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How to check if the PostgreSQL tables of the same structure have identical data using aggregated hash and md5?

How to check if the PostgreSQL tables of the same structure have identical data using aggregated hash and md5?

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2 min read
SQL MASTERY - P00 ( Introduction to SQL and It's Technicality

SQL MASTERY - P00 ( Introduction to SQL and It's Technicality

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2 min read
Streamlining String Concatenation in SQL Server with CONCAT_WS

Streamlining String Concatenation in SQL Server with CONCAT_WS

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1 min read
SQL subqueries: [Step-By-Step] Guide

SQL subqueries: [Step-By-Step] Guide

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4 min read
Optimising Database Performance: The Pitfalls of ‘SELECT * FROM’ Queries

Optimising Database Performance: The Pitfalls of ‘SELECT * FROM’ Queries

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4 min read
Stalactite ORM 2.0.0 is out ! 🚀

Stalactite ORM 2.0.0 is out ! 🚀

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1 min read
Como normalizar banco de dados?

Como normalizar banco de dados?

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What is Surrogate Key in SQL?

What is Surrogate Key in SQL?

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All joins in PostgreSQL: Tutorial

All joins in PostgreSQL: Tutorial

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2 min read
How to Split Attributes of Same Type in One Row and Convert Them into Multiple Rows

How to Split Attributes of Same Type in One Row and Convert Them into Multiple Rows

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Expose your database as a REST API safely and without code

Expose your database as a REST API safely and without code

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3 min read
Which Scenarios Does ClickHouse Applies to?

Which Scenarios Does ClickHouse Applies to?

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5 min read
Unlock SQLite: Easy Data Analysis for Busy Software Engineers

Unlock SQLite: Easy Data Analysis for Busy Software Engineers

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1 min read
Migrating SQL Server to Azure SQL Database with SQL Server Management Studio (SSMS)

Migrating SQL Server to Azure SQL Database with SQL Server Management Studio (SSMS)

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4 min read
From dbf to PostgreSQL with Python

From dbf to PostgreSQL with Python

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Getting Started with SQL: An Overview of Its Role in Data Fields

Getting Started with SQL: An Overview of Its Role in Data Fields

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3 min read
Bagaimana cara menggunakan PostgreSQL tanpa melakukan instalasi?

Bagaimana cara menggunakan PostgreSQL tanpa melakukan instalasi?

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3 min read
Handling NULL Values in SQL: A Guide to `ISNULL`, `NULLIF`, and `COALESCE`

Handling NULL Values in SQL: A Guide to `ISNULL`, `NULLIF`, and `COALESCE`

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2 min read
Streamlining SQL Queries with the WINDOW Keyword

Streamlining SQL Queries with the WINDOW Keyword

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2 min read
Exploring PostgreSQL Joins: A Comprehensive Guide Using Sales Data and Product Information

Exploring PostgreSQL Joins: A Comprehensive Guide Using Sales Data and Product Information

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3 min read
Integrating Predictive Analytics Models into SQL Queries

Integrating Predictive Analytics Models into SQL Queries

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14 min read
Manipulando Datas com SQL Server

Manipulando Datas com SQL Server

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7 min read
PostgreSQL with modern storage: what about a lower random_page_cost?

PostgreSQL with modern storage: what about a lower random_page_cost?

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11 min read
The best free database providers in 2024

The best free database providers in 2024

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Mastering SQL Query Optimization: Techniques for Maximum Database Performance

Mastering SQL Query Optimization: Techniques for Maximum Database Performance

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13 min read
Retrieving the latest row per group from PostgreSQL

Retrieving the latest row per group from PostgreSQL

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11 min read
RisingWave workshop

RisingWave workshop

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5 min read
Supercharge Your Database: 25 Essential MySQL Query Optimization Techniques

Supercharge Your Database: 25 Essential MySQL Query Optimization Techniques

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8 min read
Integrating Apache Hive — Offline Data for OpenMLDB

Integrating Apache Hive — Offline Data for OpenMLDB

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4 min read
Simplify Database Migrations using Python with Alembic

Simplify Database Migrations using Python with Alembic

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7 min read
An Introduction to SQL Server Query Store

An Introduction to SQL Server Query Store

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3 min read
DATABASE INDEXING IN PoatgreSQL

DATABASE INDEXING IN PoatgreSQL

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4 min read
Preventing SQL Injection with Golang

Preventing SQL Injection with Golang

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Manipulating Dates with SQL Server

Manipulating Dates with SQL Server

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5 min read
SQL Pro Tips : industrial Oracle SQL using WITH

SQL Pro Tips : industrial Oracle SQL using WITH

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4 min read
Building a project in DBT

Building a project in DBT

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5 min read
How come there are tens of thousands of tables in a database

How come there are tens of thousands of tables in a database

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PostgreSQL index Correlation with UPDATE

PostgreSQL index Correlation with UPDATE

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17 min read
Understanding Database Normalization and the Importance of 1NF

Understanding Database Normalization and the Importance of 1NF

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3 min read
Bulk Insert, Bulk Delete, Bulk Update with Dapper by Bulk.Dapper

Bulk Insert, Bulk Delete, Bulk Update with Dapper by Bulk.Dapper

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2 min read
What is Querying a Database? Everything You Need to Know

What is Querying a Database? Everything You Need to Know

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2 min read
How to use pgbench to test PostgreSQLÂŽ performance

How to use pgbench to test PostgreSQLÂŽ performance

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5 min read
Query Documents from PostgreSQL like MongoDB

Query Documents from PostgreSQL like MongoDB

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1 min read
Optimizing PostgreSQL Queries with Function Volatility: Volatile, Stable, and Immutable

Optimizing PostgreSQL Queries with Function Volatility: Volatile, Stable, and Immutable

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3 min read
How To Master PostgreSQL Performance Like Never Before

How To Master PostgreSQL Performance Like Never Before

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14 min read
Harnessing SQL's PRECEDING and FOLLOWING: Advanced Data Analysis with Window Functions

Harnessing SQL's PRECEDING and FOLLOWING: Advanced Data Analysis with Window Functions

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8 min read
B-Tree vs. LSM-Tree: measuring the write amplification on Oracle Database and YugabyteDB

B-Tree vs. LSM-Tree: measuring the write amplification on Oracle Database and YugabyteDB

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10 min read
Integrate sqlite with Nodejs ! 🔥

Integrate sqlite with Nodejs ! 🔥

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SQL Injection attack

SQL Injection attack

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2 min read
Handling NEW and OLD Immutability in PostgreSQL Triggers

Handling NEW and OLD Immutability in PostgreSQL Triggers

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2 min read
Exploring the Database Spectrum. A Look at SQL and NoSQL Technologies.

Exploring the Database Spectrum. A Look at SQL and NoSQL Technologies.

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11 min read
YugabyteDB Transactional Load with Non-transactional COPY

YugabyteDB Transactional Load with Non-transactional COPY

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3 min read
What's the equivalent of pageinspect in YugabyteDB?

What's the equivalent of pageinspect in YugabyteDB?

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15 min read
Understanding ON DELETE CASCADE and ON UPDATE CASCADE in SQL Foreign Key Relationships

Understanding ON DELETE CASCADE and ON UPDATE CASCADE in SQL Foreign Key Relationships

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3 min read
My Data Engineering Library

My Data Engineering Library

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2 min read
Utilizando o Prisma com TypeScript e SQLite: Um Guia PrĂĄtico

Utilizando o Prisma com TypeScript e SQLite: Um Guia PrĂĄtico

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4 min read
Adding sequence duplicate records in MySQL without a window function

Adding sequence duplicate records in MySQL without a window function

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3 min read
Python Database Connectivity and SQL Basics for EDA 🐍📊

Python Database Connectivity and SQL Basics for EDA 🐍📊

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4 min read
SQL for Beginners

SQL for Beginners

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2 min read
SQL vs NoSQL: Choosing the Right One, Future Trends & Best Practices

SQL vs NoSQL: Choosing the Right One, Future Trends & Best Practices

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11 min read
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