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 Interview Question: The Customer Paid. Why Isn’t Their Coffee Being Made?

Salesforce Interview Question: The Customer Paid. Why Isn’t Their Coffee Being Made?

Comments 2
10 min read
Modelling Medical Device Size Variants as SKUs: A Ureteral Stent Example

Modelling Medical Device Size Variants as SKUs: A Ureteral Stent Example

Comments
2 min read
SQL for Web Developers: JOINs, Indexes, CTEs, Window Functions, and N+1 Queries

SQL for Web Developers: JOINs, Indexes, CTEs, Window Functions, and N+1 Queries

Comments
4 min read
Tracking Traffic From ChatGPT, Perplexity and Gemini in GA4 and BigQuery

Tracking Traffic From ChatGPT, Perplexity and Gemini in GA4 and BigQuery

Comments
5 min read
5 Things to Check Before Trusting AI-Generated SQL

5 Things to Check Before Trusting AI-Generated SQL

Comments
1 min read
VACUUM FULL Locks Your Table the Whole Time. Postgres 19's REPACK CONCURRENTLY Doesn't

VACUUM FULL Locks Your Table the Whole Time. Postgres 19's REPACK CONCURRENTLY Doesn't

Comments
9 min read
An AI explained SQL GROUP BY in four lines. One of them is wrong.

An AI explained SQL GROUP BY in four lines. One of them is wrong.

Comments
1 min read
Hosted Free Models or a Free Server: Where an Agent's SQL Drafting Loop Should Run

Hosted Free Models or a Free Server: Where an Agent's SQL Drafting Loop Should Run

Comments
7 min read
Constraints in PostgreSQL

Constraints in PostgreSQL

Comments
5 min read
SQL_Sheet

SQL_Sheet

1
Comments
3 min read
Postgres "deadlock detected": Fix the Lock Order First, Then Add a Retry

Postgres "deadlock detected": Fix the Lock Order First, Then Add a Retry

Comments 1
6 min read
Oracle to Snowflake migration validation: a six-gate acceptance framework

Oracle to Snowflake migration validation: a six-gate acceptance framework

Comments
4 min read
The dbt test that would have caught our duplicate orders

The dbt test that would have caught our duplicate orders

Comments 1
1 min read
The 4 kinds of ALTER TABLE that cause production incidents (and a 5-minute review for each)

The 4 kinds of ALTER TABLE that cause production incidents (and a 5-minute review for each)

Comments
4 min read
SQL Joins Explained with One Tiny Dataset (Plus 5 Interview Questions)

SQL Joins Explained with One Tiny Dataset (Plus 5 Interview Questions)

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