Liquibase Command Line create diff changelog in sql
Solution 1
You're running the diffChangeLog
command, I think you want the diff
command? See Output Modes in the manual.
liquibase.bat
--driver=com.mysql.jdbc.Driver
--url=jdbc:mysql://localhost:3306/base1
--username=root
--referenceUrl=jdbc:mysql://localhost:3306/base2
--referenceUsername=root
diff
> test.sql
Solution 2
The diff command only provides a textual overview of the differences.
In order to get an SQL of the difference of a new (dev) and old database:
Use diffChangeLog to (temporarily perhaps) update your changelog by comparing two databases
Use updateSQL against the out-of-date database to show the sql commands that would be run to bring it up to date. Note the printed SQL will also contain commands needed by liquibase for administration.
You can then commit the new changelog with your code if the new/dev database is what you expect. Use changelogSync to make the new/dev database thinks it's been updated by liquibase.
Desnoxav
Updated on June 23, 2022Comments
-
Desnoxav almost 2 years
I actually use Liquibase on windows in command lines, and I try to create an sql script that represent the diff between two databases. Unfortunatly I only get xml file in return. Can you help me ?
My command line :
liquidbase.bat --driver=com.mysql.jdbc.Driver --url=jdbc:mysql://localhost:3306/base1 --username=root diffChangeLog --referenceUrl=jdbc:mysql://localhost:3306/base2 --referenceUsername=root > test.sql
I've seen this similar question in an other forum but he didn't got a good answer (http://forum.liquibase.org/topic/convert-changelog-xml-file-into-sql-file). I've also seen some parameters for getting sql file from updateSQL cmd, but never for a diffChangeLog.
Example of the xml feedback :
<?xml version="1.0" encoding="UTF-8" standalone="no"?> <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-2.0.xsd"> <changeSet author="user (generated)" id="1370443156612-1"> <createTable tableName="test"> <column name="a" type="INT"/> </createTable> </changeSet> <changeSet author="user (generated)" id="1370443156612-2"> <addColumn tableName="articles"> <column name="date_debut" type="TEXT"> <constraints nullable="false"/> </column> </addColumn> </changeSet>
Thanks by advance.
-
andPat over 7 yearsThis is not true. the process is not so direct. No SQL compliant code is generated, only a textual overview like @Ian Rogers says.