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Add common errors section to README #49

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f6816c0
Add common errors section to README
Raheemdevlops Feb 28, 2026
69b248e
Add Employees Database Schema Overview document
Raheemdevlops Feb 28, 2026
a14b203
Update SCHEMA_OVERVIEW.md
Raheemdevlops Feb 28, 2026
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3 changes: 3 additions & 0 deletions README.md
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Expand Up @@ -115,4 +115,7 @@ http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to
Creative Commons, 171 Second Street, Suite 300, San Francisco,
California, 94105, USA.

## Common Errors

Error: Access denied for user 'root'
Solution: Make sure you are using the correct password and host.
40 changes: 40 additions & 0 deletions SCHEMA_OVERVIEW.md
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# Employees Database Schema Overview


## Tables

### employees
- emp_no (INT, PK)
- birth_date (DATE)
- first_name (VARCHAR)
- last_name (VARCHAR)
- gender (ENUM)
- hire_date (DATE)

### departments
- dept_no (CHAR, PK)
- dept_name (VARCHAR)

### salaries
- emp_no (INT, FK)
- salary (INT)
- from_date (DATE)
- to_date (DATE)

### titles
- emp_no (INT, FK)
- title (VARCHAR)
- from_date (DATE)
- to_date (DATE)

### dept_emp
- emp_no (INT, FK)
- dept_no (CHAR, FK)
- from_date (DATE)
- to_date (DATE)

### dept_manager
- emp_no (INT, FK)
- dept_no (CHAR, FK)
- from_date (DATE)
- to_date (DATE)