firebase code example

Example 1: liquibase

<?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: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/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">

    <changeSet context="legacy" author="author (generated)" id="1">
        <createTable tableName="test">
            <column autoIncrement="true" name="id" type="SERIAL">
                <constraints nullable="false"/>
            </column>
            <column name="user_name" type="VARCHAR(255)"/>
            <column name="preferences" type="TEXT"/>
        </createTable>
    </changeSet>
</databaseChangeLog>

Example 2: firebase

firebase website: 
firebase.google.com

Example 3: firebase

firebase.google.com

Example 4: firebase javascript

// Create Firebase project

// Create Web app in Firebase console

// Link project

var firebaseConfig = {
  apiKey: // apiKey,
  authDomain: // authDomain,
  databaseURL: // databaseURL,
  projectId: // projectId,
  storageBucket: // storageBucket,
  messagingSenderId: // messagingSenderId,
  appId: // appId,
  measurementId: // measurementId
};
firebase.initializeApp(firebaseConfig);

// Add your dependencies

//E.G.

<script src="https://www.gstatic.com/firebasejs/7.21.1/firebase-app.js"></script>

Example 5: liquibase

<changeSet context="legacy" author="author (generated)" id="1">
    <createTable tableName="test">
        <column autoIncrement="true" name="id" type="SERIAL">
            <constraints primaryKey="true" primaryKeyName="test_pkey"/>
        </column>
        <column name="c1" type="VARCHAR(255)"/>
        <column name="c2" type="INTEGER"/>
        <column name="c3" type="SMALLINT"/>
        <column name="c4" type="VARCHAR(255)"/>
        <column name="c5" type="TEXT"/>
        <column name="c6" type="VARCHAR(255)"/>
    </createTable>
</changeSet>

Example 6: liquibase

<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 id="1" author="[email protected]" runonchange="true"> 
    <createtable tablename="Person"> 
      <column autoincrement="true" name="id" type="BIGINT"> 
        <constraints nullable="false" primarykey="true"> 
        </constraints>
      </column> 
      <column name="name" type="VARCHAR(255)"> 
        <constraints nullable="false"> 
        </constraints>
      </column> 
    </createtable> 
  </changeset>
</databasechangelog>

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