The document discusses database versioning in Golang and recommends the mattes/migrate tool. It notes that mattes/migrate allows for: 1. Versioning databases 2. Supporting default setting records 3. Supporting rollback and changing versions The document then provides steps to use mattes/migrate in a simple Golang project, including adding the mattes/migrate library and creating an sql folder to hold migrations. It also lists commands like "up", "down", "redo", and "reset" for managing migrations from the command line.

1. Database Versioning
In Golang

2. - Missing changes.
- Code’s version and database’s version.
- Missing setting’s versioning.
Problem

3. What way we have
Communication

4. Beego migration
Beego migration

5. Beego migration
Beego migration
- Miss version
- Can’t delete or edit
- Miss default setting
- Depend on beego framework

6. Good database versioning tool

7. mattes/migrate
https://github.com/mattes/migrate
- Versioning database.
- Support default setting records.
- Support rollback and change version.
- Independence tool.

8. mattes/migrate
Supported databases:
- Postgresql
- Mysql
- Sqlite
- Cassandra
Allows custom to add unsupported
databases.

9. step 1: Create simple project:
go get github.com/ledongthuc/simple-golang-app
cd $GOPATH/src/github.com/ledongthuc/simple-golang-app/

10. step 1: Create simple project:

11. step 2: Add mattes/migrate library
go get github.com/mattes/migrate
https://gist.github.com/ledongthuc/f452eb0d6dfe97d0b4de

12. step 2: Add mattes/migrate library
Add folder sql

13. Using with command
line

14. 1 - up all migration

15. 2 - down all migration

16. 3 - Redo an action

17. 4 - Reset database

18. 5 - Go to specific version