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To implement a schema level update, two steps must be taken:

1. The new numeric schema level must be specified in the plugin’s descriptor file.

2. The actual schema update must be implemented.

Define new schema level in plugin descriptor

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{
    "$schema": "http://git.intra.pinuts.de/cmsbs/cmsbs/raw/master/doc/json-schemas/plugin.desc.json",
    "__encoding": "Pinuts File Encoding: UTF-8",
    "name": "de.acme.projectxtutorial",
    ...,
    "dbSchema": 1
}

Implement schema update

Create a new ES6 file in your plugin’s CSE directory. If your plugin’s name is de.acme.projectxtutorial then cmsbs-conf/cse/plugins/de.acme.tutorial/callback/DbSchemaUpdate.mjs would be a good choice:

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There are several helper methods available to accomplish common tasks like adding or altering columns or executing custom SQL statements:

• PluginSchemaMigration

• UMSqlConfig