All the instructions assumes that you have Java 8+ and Docker installed on your system.
ForexWinners.net is a proudly non-profit website. Our goal is Sharing knowledge to help forex traders to do well in the market. Everything here is for free and will be always for free. We aren’t looking for any earnings from that website. Radio Decoder Professional Car Radio Code Calculator 1.1 12 Car Radio Code Calculator Download - Torrentz2.eu. My car battery was replaced a few weeks ago and I need to get round to. The code is on the side/rear of the radio but i've only had to do this on ford cars. Follow; 12; 13:31. Professional conduct.
![Calculator Calculator](http://www.jestineyong.com/wp-content/uploads/2015/05/Volkswagen-Gamma-BVX-1JO-035-186-E-repair4.jpg)
Code Samples
Code Sample 1: Initial Flyway migration
The sample1 includes a Calculator project together with the initial Flyway migration.
The initial migration SQL is defined in
src/main/resources/db/migration/V1__Create_calculation_table.sql
. You can have a look at that file and then apply the migration.The command should automatically detect the migration script and update the database schema. You can now run the Calculator application.
We can now make a call to our service.
This should result in creating an entry in the database. You can check it by browsing the database at: http://localhost:8080/h2-console (use JDBC URL:
jdbc:h2:/tmp/calculator
).Code Sample 2: Backwards-compatible Flyway migration
The sample2 includes a Calculator project together with the backwards-compatible Flyway migration.
The migration adds a new column
CREATED_AT
to the CALCULATION
table. The migration is defined in src/main/resources/db/migration/V2__Add_created_at_column.sql
. To apply the migration, run the following command.Then, run again the application.
Make a new call to the service.
Observe the new entry in the database.
Code Sample 3: Non-backwards-compatible Flyway migration
The sample3 includes a Calculator project together with the non-backwards-compatible Flyway migration (which renames of the table column).
![Code Code](/uploads/1/2/5/8/125869152/522255372.jpg)
Renaming the column will be done in a few steps:
- Adding a new column in the database
- Changing the code to use both columns
- Merging the data
- Removing the old column from the code
- Dropping the old column from the database
The first steps are already included, you can check they work fine by executing the
src/main/resources/db/migration/V3__Add_sum_column.sql
migration and starting the service.Make a new call to the service and observe the entries in the database. Note that all the changes we did so far are backwards-compatible.
Let's create the data merging migration (
src/main/resources/db/migration/V4__Copy_result_into_sum_column.sql
), which will copy the old column data to the new one.Execute the migration.
The next step is to remove the old column from the code. You can remove all mentions of
result
from the Calculation.java
class. Then, start the service and observe the data in the database.Finally, we can drop the old column from the database. Create
src/main/resources/db/migration/V5__Drop_result_column.sql
with the following content.After running the migration and starting the service, observe again the database.
Exercise solutions
Exercise 1: Flyway to make non-backwards-compatible change in MySQL
The exercise1 directory contains the initial Flyway migration.
Start the MySQL docker container with the following command.
Install MySQL client CLI (
mysql-client
) and the flyway
command tool. Note that you can use the related client Docker images instead.Create a sample database
test
.Run the initial migration which creates the
users
table.Insert some data with the MySQL client.
Create the migration
V2__Create_hashed_password_column.sql
to create a new column.Apply the migration.
Create a migration to copy the data from
PASSWORD
into HASHED_PASSWORD
. Let's name it V3__Copy_password_into_hashed_password.sql
.Apply the migration.
Check using MySQL client that the data was copied.
Create a migration to drop the
PASSWORD
column. Let's name it V4__Drop_password_column.sql
.Apply the migration and check the results with the MySQL client.
Exercise 2: Create Jenkins shared library to build and unit test Gradle projects
The exercise2 directory contains the code for the Jenkins shared library.
To use it, you need to copy it into a separate repository and point it in Jenkins.