https://github.com/andriikot/postgresql-lesson-5

PostgreSQL Lesson 5
https://github.com/andriikot/postgresql-lesson-5

Last synced: 12 days ago
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PostgreSQL Lesson 5

• Host: GitHub
• URL: https://github.com/andriikot/postgresql-lesson-5
• Owner: AndriiKot
• Created: 2023-04-13T08:01:22.000Z (about 2 years ago)
• Default Branch: master
• Last Pushed: 2023-04-13T08:14:11.000Z (about 2 years ago)
• Last Synced: 2025-05-20T01:42:02.061Z (about 2 months ago)
• Size: 1.95 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# PostgreSQL-lesson-5

PostgreSQL Lesson 5

```sql

select 

	first_name,

	last_name,

	upper(first_name),

	lower(first_name)

from 

        actor;

select 

	email,

        substring(email,1,strpos(email,'@') - 1)

from

	staff;

```