Tests fail to run with H2 database on Micronaut project with Flyway migrations - h2

Question

I've got a unit test suite in a Micronaut 2.0.3 project that's supposed to run on an H2 DB. Since I started using Flyway for my DB migrations, I'm getting an error coming from H2 being unable to run the migrations.
The error is
Bean definition [javax.sql.DataSource] could not be loaded: Migration V1__schema.sql failed
-------------------------------
SQL State : 42001
Error Code : 42001
Message : Syntax error in SQL statement "CREATE DATABASE[*] IF NOT EXISTS MY_DB"; expected "OR, FORCE, VIEW, ALIAS, SEQUENCE, USER, TRIGGER, ROLE, SCHEMA, CONSTANT, DOMAIN, TYPE, DATATYPE, AGGREGATE, LINKED, MEMORY, CACHED, LOCAL, GLOBAL, TEMP, TEMPORARY, TABLE, SYNONYM, PRIMARY, UNIQUE, HASH, SPATIAL, INDEX"; SQL statement:
CREATE DATABASE if not exists my_db [42001-200]
Location : db/migration/V1__schema.sql (/somelocation/build/resources/main/db/migration/V1__schema.sql)
Line : 1
Statement : CREATE DATABASE if not exists my_db
io.micronaut.context.exceptions.BeanInstantiationException: Bean definition [javax.sql.DataSource] could not be loaded: Migration V1__schema.sql failed
-------------------------------
My application.yml is configured to point at a MariaDB instance in Azure like so:
micronaut:
application:
name: myapp
server:
context-path: /myapp/api
cors:
enabled: true
endpoints:
all:
enabled: true
sensitive: false
datasources:
default:
url: jdbc:mariadb://${ENV_DB_HOST_PORT:myurl.mariadb.database.azure.com}:${ENV_DB_PORT:3306}/${ENV_DB_SCHEMA:my_db}?useSSL=${ENV_DB_USE_SSL:true}&useUnicode=true&serverTimezone=Europe/London&autoReconnect=true
driverClassName: org.mariadb.jdbc.Driver
username: myusername
password: mypassword
dialect: MYSQL
allow-pool-suspension: false
connection-test-query: SELECT 1
connection-timeout: 30000
max-lifetime: 60000
maximum-pool-size: 10
minimum-idle: 1
flyway:
datasources:
default:
enabled: true
But my application-test.yml points at the H2 DB for testing purposes:
datasources:
default:
url: jdbc:h2:mem:devDb;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
driverClassName: org.h2.Driver
username: sa
password: ''
jpa:
default:
properties:
hibernate:
hbm2ddl:
auto: update
And my migration file V1__schema.sql looks like the following:
CREATE DATABASE if not exists my_db;
use my_db;
DROP TABLE IF EXISTS `preset`;
CREATE TABLE `preset` (
`ID` int(11) NOT NULL AUTO_INCREMENT,
`preset_name` varchar(30) NOT NULL,
`preset_value` varchar(4000) DEFAULT NULL,
PRIMARY KEY (`ID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
DROP TABLE IF EXISTS `note`;
CREATE TABLE `note` (
`ID` int(11) NOT NULL AUTO_INCREMENT,
`code` varchar(30) NOT NULL,
`text` varchar(4000) DEFAULT NULL,
PRIMARY KEY (`ID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

Answer 1

The error is pretty much self explanatory
Message : Syntax error in SQL statement "CREATE DATABASE[*] IF NOT EXISTS MY_DB";
CREATE DATABASE if not exists my_db;
According to H2 commands, CREATE DATABASE is not a valid command for H2. You probably need the command CREATE SCHEMA if not exists my_db;