matheusguifer

Name:Matheus Ferreira

Clan:CEF

Member Since:Feb 2022

Last Seen:Aug 2022

Profiles:

Following:12

Followers:12

Allies:12

- FArekkusu
- resolved a question on "Analyzing the sales by product and date" kata
The error message clearly says what's wrong. You should read the documentation about how to use GROUP BY and aggregate functions correctly.
- matheusguifer
- created a question for "Analyzing the sales by product and date" kata
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- Chrono79
- resolved a question on "Century From Year" kata
Read the error message:
```
PG::UndefinedFunction: ERROR:  operator does not exist: integer =! integer
```
It's !=
- matheusguifer
- created a question for "Century From Year" kata
This comment is hidden because it contains spoiler information about the solution
- matheusguifer
- commented on "SQL Basics: Simple JOIN" kata
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- matheusguifer
- commented on "Easy SQL: Cube Root and Natural Log" sql solution
Why did you change the table name to d (assuming this is in fact what you did)? And why is this best practices?