OK, let’s start by going to dbdiagram.io and click Go to app. And finally generate SQL codes to create the schema in a target database engine of your choice, such as PostgreSQL, MySQL, or SQL server.Save the schema as a PDF or PNG diagram to share it with your team.Design a SQL database schema using dbdiagram.io.In the first lecture, we will learn about database design. This should happen within a transaction, so that either both accounts’ balance are updated successfully or none of them are. And third, perform a money transfer between 2 accounts.So every time some money is added to or subtracted from the account, an account entry record will be created. Second, record all balance changes to each of the account.First, create and manage bank accounts, which are composed of owner’s name, balance, and currency.It will provide APIs for the frontend to do following things: The service that we’re going to build is a simple bank. In this backend master class, we’re going to learn everything about how to design, develop, and deploy a complete backend system from scratch using PostgreSQL, Golang and Docker. 3 How to write & run database migration in Golang 4 Generate CRUD Golang code from SQL | Compare db/sql, gorm, sqlx, sqlc 5 Write Go unit tests for db CRUD with random data 6 A clean way to implement database transaction in Golang 7 DB transaction lock & How to handle deadlock 8 How to avoid deadlock in DB transaction? Queries order matter! 9 Deeply understand Isolation levels and Read phenomena in MySQL & PostgreSQL 10 How to setup Github Actions for Go + Postgres to run automated tests 11 Implement RESTful HTTP API in Go using Gin 12 Load config from file & environment variables in Golang with Viper 13 Mock DB for testing HTTP API in Go and achieve 100% coverage 14 Implement transfer money API with a custom params validator in Go 15 Add users table with unique & foreign key constraints in PostgreSQL 16 How to handle DB errors in Golang correctly 17 How to securely store passwords? 18 How to write stronger unit tests with a custom go-mock matcher 19 Why PASETO is better than JWT for token-based authentication? 20 How to create and verify JWT & PASETO token in Golang 21 Implement login user API that returns PASETO or JWT access token in Go As a result we create CI/CD pipeline for managing database as a code in version control system.1 Design DB schema and generate SQL code with dbdiagram.io 2 Install & use Docker + Postgres + TablePlus to create DB schema. Liquibase gives rich cli options and with support of docker image. The diff command in Liquibase allows you to compare two databases of the same type, or different types, to one another. Example liquibase -output-file=mySnapshot.json -url -username "" -password "" -snapshot -snapshotFormat=json Diff The snapshot command captures the current state of the database. rollback drop table Details1 liquibase -changeLogFile="filePath" -url -username "" -password "" rollback Snapshot The rollback command rolls back changes made to the database based on the specified tag.ĬhangelogFile Contents - changeset liquibaseuser:1Ĭreate table Details1 ( id int primary key, name varchar(255) ) UPDATE liquibase.person SET address = 'address value' WHERE name='Bob' liquibase -changeLogFile "" -url -username "" -password "" update Rollback The update command updates the SQL change defined in Changelog to existing DB.ĬhangeLogFile Contents - changeset liquibaseuser:1 com/install/supported-databases.html Liquibase Commands Update: ![]() It prevents multiple instances of Liquibase from updating the database at the same time.Īlso, Liquibase supports both SQL and NoSQL Database Moreover, It’s used to compare and deploy the changeset in the changelog file. ![]() Overall, Liquibase creates and uses two tables for tracking the changeset in changelogfile and the lock for preventing multiple updates at a time. Insert into example (id, name) values (2, ‘name 2′) ![]() Insert into example (id, name) values (1, ‘name 1′) Additional File containing changeset to include in master changelog.It’s a change that needs to be executed in DataBase via Liquibase.Changelogs supported fomats: SQL,XML,JSON,YAML.It contains sequential changes that need to be made in DB.Deploy database and application changes together so they always stay in sync.Reading Time: 2 minutes What is Liquibase ?įirstly, Liquibase is an open-source database schema change management solution which enables you to manage revisions of your database changes easily.
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