I want to export data from a Oracle database to a HSQL database to use in a test environment (which doesn't have oracle).
What would be the way to proceed?
You can create an ETL package using SQL Server Integration Services.
Related
I have all my liquibase changelogs with respect to MySQL database now we are planning to move to MSSQL so when I try to run the existing changelogs which is working fine for MySQL is failing for MSSQL. Is there any configuration in liquibase to handle database migration?
getting below error when I run changelogs on MSSQL
addAfterColumn is not allowed on mssql
you can use dbms attribute and configure changelogs to be executed only on given databases.
I try to use flyway to manage database schema in OceanBase, but failed.
The version I used
Flyway compile("org.flywaydb:flyway-core:5.2.1")
MySQL driver runtime 'mysql:mysql-connector-java:5.1.41'
Is there anyway to use database schema management in OceanBase?
I'm not sure if oceanbase supports flyway. If you are trying to perform migration, try using OMS(Oceanbase migration service) instead, or you are trying to manage the database itself, try using ODC(Oceanbase developer center). Both are GUI tools to manage oceanbase databases. You can find more details on official website of Oceanbase.
I have database postgresql in Heroku and i have local app. My entity is "Product".
When i wanna open my application in spring boot i get ERROR: relation "product" does not exist.
I dont have any idea how create new table "product" in postgresql.
In mysql everythink is good
You can with do it manually by running heroku pg:psql and then running the appropriate SQL statements. Or you can use a migration framework in your app.
For more information on running database migrations see the Heroku docs.
In my Java desktop application, i am using MySQL server for database operations but for some reasons i want to switch my application to work with HSQL database. My question is can we import the .sql file exported from MySQL into HSQL database to get the database structure as it is into HSQL database ? Thank you.
Yes, it's possible using a MySQL dump of your database, but you've to be carefull of some MySQLÂ compatibilities : http://hsqldb.org/doc/guide/management-chapt.html#mtc_compatibility_mysql.
Maybe some databases tools : https://en.wikipedia.org/wiki/Comparison_of_database_tools, or the http://hsqldb.org/doc/util-guide/transfer-tool-chapt.html can do the trick.
Flyway provides framework which will execute migrations based on directory
/data/migration
My application supports Oracle, SQLServer or MySQL, i would like to keep scripts as /data/migration/oracle and /data/migration/sqlserver etc...
Application can be deployed either on Oracle, SQLServer or MySQL. How to inform Flyway framework to use specific database deployment migrations using spring integration?
You will pass different location for each database. You may have placeholder for that. I have it done in maven plugin ond only what is needed to be changed is
<locations>
<location>db/${database.type}</location>
</locations>