- It shows a list of links from the database
- New links can be added
- Links can be tagged
- Links can be filtered by a tag
As an Internet user,
So that I can return to interesting websites,
I'd like to see a list of links from the database
As an Internet user,
So that I can save a website to access it later,
I'd like add a link to the database
As an Internet user,
So that I can better organise my bookmarks,
I'd like to tag links stored in the database
As an Internet user,
So that I can find a particular website more quickly,
I'd like to see a list of links from the database filtered by their tag
| Objects | Messages | State |
|---|---|---|
| User | log_in; | Username |
| Weblinks | add_tag; | Tags |
| Database | save_link; find_link | Links |
- Create, read, update and delete (as an acronym CRUD) are the four basic functions of persistent storage
- SQL stands for Structured Query Language and it is the standard language for relational database management
| CRUD Action | SQL Example |
|---|---|
| Create | INSERT INTO table_name (column_one) VALUES (value_one); |
| Read | SELECT * FROM table_name; |
| Update | UPDATE table_name SET column_one = value_one WHERE [condition]; |
| Delete | DELETE FROM table_name WHERE [condition]; |
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