DEV Community

select * from SQL

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

Posts

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
Salesforce Data Engineering Interview Questions

Salesforce Data Engineering Interview Questions

Comments
41 min read
DuckDB 1.5.2, PostgreSQL Linux 7.0 Regression, & SQLite Formal Verification

DuckDB 1.5.2, PostgreSQL Linux 7.0 Regression, & SQLite Formal Verification

Comments
3 min read
Aggregations: Counting, Summing, and Averaging Your Data

Aggregations: Counting, Summing, and Averaging Your Data

Comments
7 min read
PostgreSQL Subquery and CTE Optimization

PostgreSQL Subquery and CTE Optimization

1
Comments
8 min read
SQL Basics: Talking to a Database for the First Time

SQL Basics: Talking to a Database for the First Time

Comments
7 min read
PostgreSQL Extension for Row Padding, pgBackRest EOL, and SQLite Windows XP Support

PostgreSQL Extension for Row Padding, pgBackRest EOL, and SQLite Windows XP Support

Comments
3 min read
Our API Was Successfully Hacked. Here's What We Fixed Before the Regulator Showed Up

Our API Was Successfully Hacked. Here's What We Fixed Before the Regulator Showed Up

Comments
4 min read
PostgreSQL Join Optimization: Nested Loop, Hash, and Merge

PostgreSQL Join Optimization: Nested Loop, Hash, and Merge

Comments
11 min read
Pivotal: A better syntax for data analysis in Python

Pivotal: A better syntax for data analysis in Python

Comments
6 min read
Databricks Data Engineering Interview Questions

Databricks Data Engineering Interview Questions

Comments
36 min read
SQL Subqueries vs CTEs: What I Wish Someone Told Me When I Was Learning SQL

SQL Subqueries vs CTEs: What I Wish Someone Told Me When I Was Learning SQL

Comments
3 min read
Understanding Subquery and Common Table Expressions(CTEs)

Understanding Subquery and Common Table Expressions(CTEs)

Comments
2 min read
You Want To Learn SQL? Here Is What I know So far...

You Want To Learn SQL? Here Is What I know So far...

Comments
3 min read
SQL Building Blocks: How Subqueries and CTEs Shape Your Data

SQL Building Blocks: How Subqueries and CTEs Shape Your Data

1
Comments
3 min read
Data Analyst Interview Questions 2026: What Actually Shows Up Across All Three Rounds

Data Analyst Interview Questions 2026: What Actually Shows Up Across All Three Rounds

2
Comments
4 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.