Liquibase Change Types addColumn

Liquibase createTable allows to definition of all columns required for creating table, but sometimes requirement is to add some new columns in existing tables. Liquibase provides addColumn ChangeType to alter the existing table and add a new column.

<?xml version="1.1" encoding="UTF-8" standalone="no"?>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:pro="http://www.liquibase.org/xml/ns/pro" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/pro http://www.liquibase.org/xml/ns/pro/liquibase-pro-latest.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-latest.xsd">
	<changeSet author="wesome" id="1693111591793-1">
		<createTable catalogName="appledb" schemaName="appledb" tablespace="appledb" tableName="apple">
			<column name="apple_id" type="BIGINT">
				<constraints unique="true" primaryKey="true" />
			</column>
			<column name="apple_name" type="VARCHAR(20)" />
		</createTable>
	</changeSet>
	<changeSet author="wesome" id="1693111591793-2">
		<addColumn catalogName="appledb" schemaName="appledb" tableName="apple">
			<column afterColumn="apple_name" name="current_date_time" type="datetime">
				<constraints nullable="false" />
			</column>
		</addColumn>
	</changeSet>
	<changeSet author="wesome" id="1692599548266-3">
		<insert catalogName="appledb" tableName="apple">
			<column name="apple_id" value="1" />
			<column name="apple_name" value="Fuji" />
			<column name="current_date_time" valueDate="now()" />
		</insert>
	</changeSet>
</databaseChangeLog>

liquibase.properties (update changeLog File file format with SQL, XML, YAML, JSON as per changelog.mysql.)

changeLogFile=changelog.mysql.xml
liquibase.command.url:jdbc:mysql://localhost:3306/appleDb?createDatabaseIfNotExist=true&autoReconnect=true&useSSL=false&allowPublicKeyRetrieval=true
liquibase.command.username : root
liquibase.command.password : rootroot

Run command liquibase update

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