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如何使用java區分liquibase中的兩個新模式？

2012-03-06 15 views
3

我的要求是我想比較兩個數據庫，然後我想生成一個差異sql.Note我想通過Java只做它。我是Liquibase的新手。我找到了一個名爲CommandLineUtils的java api，使用它我可以生成一個新數據庫的changeLog。當我執行方法doDiffToChangeLog時，我的changeLog xml是空的。你能告訴我我做錯了嗎？如何使用java區分liquibase中的兩個新模式？

這裏是我的Java代碼

Database database=liqui.createDatabaseObject(OracleDriver.class.getClassLoader(), "jdbc:oracle:thin:@localhost:1521:XE", "archive_pmd", "archive_pmd", "oracle.jdbc.driver.OracleDriver", "archive_pmd", null, null); 
     liqui.doGenerateChangeLog("test.xml", database, "archive_pmd", null, null, null, null); 
     Database database2=liqui.createDatabaseObject(OracleDriver.class.getClassLoader(), "jdbc:oracle:thin:@localhost:1521:XE", "archive_dbs", "archive_dbs", "oracle.jdbc.driver.OracleDriver", "archive_pmd", null, null); 
     liqui.doDiffToChangeLog("chageLog.xml", database2, database);

這裏是我所產生的test.xml

<?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="DELL (generated)" id="1331066786490-1"> 
     <createTable schemaName="archive_pmd" tableName="PMD00_SEQUENCE"> 
      <column name="PMD00_ID" type="NUMBER"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="TABLE_IDENTIFIER" type="VARCHAR2(50 BYTE)"/> 
      <column defaultValueNumeric="0" name="CURRENT_VALUE" type="NUMBER"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="LAST_ACCESSED_TS" type="DATE"/> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-2"> 
     <createTable schemaName="archive_pmd" tableName="PMD01_META_DATA"> 
      <column name="PMD01_ID" type="NUMBER"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="CATEGORY" type="VARCHAR2(30 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="NAME" type="VARCHAR2(50 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="CODE" type="VARCHAR2(100 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="STATUS" type="VARCHAR2(1 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="PMD01_METADATAVER" type="NUMBER(4,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DMLASTUPDATEDATE" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-3"> 
     <createTable schemaName="archive_pmd" tableName="PMD13_DB_APPLICATION"> 
      <column name="ID" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="APPLICATIONNAME" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="ENVIRONMENT" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SERVERIP" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="USERID" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="PASSWORD" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DBTYPE" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DMLASTUPDATE" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SERVERPORT" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SERVICE" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-4"> 
     <createTable schemaName="archive_pmd" tableName="PMD14_DB_VERSION"> 
      <column name="ID" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="MAJORVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="MINORVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="PATCHVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DATEEXECUTED" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DML_SCRIPT" type="BLOB"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="STATUS" type="VARCHAR2(20 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="REQUESTOR" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DMLASTUPDATE" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DML_SCRIPTNAME" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DB_APPLICATION_FK" type="NUMBER"> 
       <constraints nullable="false"/> 
      </column> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-5"> 
     <createTable schemaName="archive_pmd" tableName="PMD15_DBCOMMIT_LOG"> 
      <column name="ID" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="MAJORVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="MINORVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="PATCHVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DATEEXECUTED" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SCRIPT" type="BLOB"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="EXECUTIONSTATUS" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="REQUESTOR" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="LOGREPORT" type="BLOB"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DMLASTUPDATE" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DBAPPLICATIONFK" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="LOGREPORTNAME" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SCRIPTNAME" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-6"> 
     <createIndex indexName="SYS_C004087" schemaName="archive_pmd" tableName="PMD00_SEQUENCE" tablespace="SYSTEM" unique="true"> 
      <column name="PMD00_ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-7"> 
     <createIndex indexName="SYS_C004084" schemaName="archive_pmd" tableName="PMD01_META_DATA" tablespace="SYSTEM" unique="true"> 
      <column name="PMD01_ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-8"> 
     <createIndex indexName="SYS_C004050" schemaName="archive_pmd" tableName="PMD13_DB_APPLICATION" tablespace="SYSTEM" unique="true"> 
      <column name="ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-9"> 
     <createIndex indexName="SYS_C004062" schemaName="archive_pmd" tableName="PMD14_DB_VERSION" tablespace="SYSTEM" unique="true"> 
      <column name="ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066786490-10"> 
     <createIndex indexName="SYS_C004076" schemaName="archive_pmd" tableName="PMD15_DBCOMMIT_LOG" tablespace="SYSTEM" unique="true"> 
      <column name="ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-1"> 
     <createTable schemaName="archive_pmd" tableName="PMD00_SEQUENCE"> 
      <column name="PMD00_ID" type="NUMBER"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="TABLE_IDENTIFIER" type="VARCHAR2(50 BYTE)"/> 
      <column defaultValueNumeric="0" name="CURRENT_VALUE" type="NUMBER"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="LAST_ACCESSED_TS" type="DATE"/> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-2"> 
     <createTable schemaName="archive_pmd" tableName="PMD01_META_DATA"> 
      <column name="PMD01_ID" type="NUMBER"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="CATEGORY" type="VARCHAR2(30 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="NAME" type="VARCHAR2(50 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="CODE" type="VARCHAR2(100 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="STATUS" type="VARCHAR2(1 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="PMD01_METADATAVER" type="NUMBER(4,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DMLASTUPDATEDATE" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-3"> 
     <createTable schemaName="archive_pmd" tableName="PMD13_DB_APPLICATION"> 
      <column name="ID" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="APPLICATIONNAME" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="ENVIRONMENT" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SERVERIP" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="USERID" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="PASSWORD" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DBTYPE" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DMLASTUPDATE" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SERVERPORT" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SERVICE" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-4"> 
     <createTable schemaName="archive_pmd" tableName="PMD14_DB_VERSION"> 
      <column name="ID" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="MAJORVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="MINORVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="PATCHVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DATEEXECUTED" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DML_SCRIPT" type="BLOB"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="STATUS" type="VARCHAR2(20 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="REQUESTOR" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DMLASTUPDATE" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DML_SCRIPTNAME" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DB_APPLICATION_FK" type="NUMBER"> 
       <constraints nullable="false"/> 
      </column> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-5"> 
     <createTable schemaName="archive_pmd" tableName="PMD15_DBCOMMIT_LOG"> 
      <column name="ID" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="MAJORVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="MINORVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="PATCHVERSION" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DATEEXECUTED" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SCRIPT" type="BLOB"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="EXECUTIONSTATUS" type="VARCHAR2(200 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="REQUESTOR" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="LOGREPORT" type="BLOB"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DMLASTUPDATE" type="DATE"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="DBAPPLICATIONFK" type="NUMBER(17,0)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="LOGREPORTNAME" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
      <column name="SCRIPTNAME" type="VARCHAR2(400 BYTE)"> 
       <constraints nullable="false"/> 
      </column> 
     </createTable> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-6"> 
     <createIndex indexName="SYS_C004087" schemaName="archive_pmd" tableName="PMD00_SEQUENCE" tablespace="SYSTEM" unique="true"> 
      <column name="PMD00_ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-7"> 
     <createIndex indexName="SYS_C004084" schemaName="archive_pmd" tableName="PMD01_META_DATA" tablespace="SYSTEM" unique="true"> 
      <column name="PMD01_ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-8"> 
     <createIndex indexName="SYS_C004050" schemaName="archive_pmd" tableName="PMD13_DB_APPLICATION" tablespace="SYSTEM" unique="true"> 
      <column name="ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-9"> 
     <createIndex indexName="SYS_C004062" schemaName="archive_pmd" tableName="PMD14_DB_VERSION" tablespace="SYSTEM" unique="true"> 
      <column name="ID"/> 
     </createIndex> 
    </changeSet> 
    <changeSet author="DELL (generated)" id="1331066972401-10"> 
     <createIndex indexName="SYS_C004076" schemaName="archive_pmd" tableName="PMD15_DBCOMMIT_LOG" tablespace="SYSTEM" unique="true"> 
      <column name="ID"/> 
     </createIndex> 
    </changeSet> 
</databaseChangeLog>

=== 這裏是我的changeLog.xml（DIFF一個）

<?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"/>

注意archive_dbs不包含任何表。爲什麼liquibase didint顯示archive_pmd中的表缺失在archive_dbs中？

來源

2012-03-06 Rajesh

回答

1

反正它的工作now..here是更新code..I我愛liquibase現在

Database database=CommandLineUtils.createDatabaseObject(OracleDriver.class.getClassLoader(), "jdbc:oracle:thin:@xxx.xx.xxx.xx:1521:XE", "archive_dbs", "123", "oracle.jdbc.driver.OracleDriver", "archive_dbs", null, null); 
    //CommandLineUtils.doGenerateChangeLog("test.xml", database, "archive_dbs", null, null, null, null);uncomment to generate changelog 
    Database database2=CommandLineUtils.createDatabaseObject(OracleDriver.class.getClassLoader(), "jdbc:oracle:thin:@yy.yy.yy.yy:1521:XE", "archive_dbs", "123", "oracle.jdbc.driver.OracleDriver", "archive_dbs", null, null); 
    /* CommandLineUtils.doDiffToChangeLog("chageLog.xml", database2, database);//This can generate changeLog for diff 
     ResourceAccessor resource=new FileSystemResourceAccessor(); 
     File sql=new File("SQLscript.sql"); 
     FileWriter writer=new FileWriter(sql); 
     Liquibase base=new Liquibase("chageLog.xml",resource,database); 
     base.update("Update",writer);//store diff sql to file,but donot execute it 
     base.update("Update");//execute diff sql*/ 
     //CommandLineUtils.doDiff(database2, database);//show diff in console 
    /* DatabaseSnapshot dbsnap1=new DatabaseSnapshot(database,"archive_dbs"); 
    DatabaseSnapshot dbsnap2=new DatabaseSnapshot(database2,"archive_dbs");*/ 
    Diff res=new Diff(database2,database); 
    DiffResult result=res.compare(); 
    if(result.differencesFound()){ 
     System.out.println("Different"); 
    }else{ 
     System.out.println("Equal"); 
    } 
    ByteArrayOutputStream baos=new ByteArrayOutputStream(); 
    PrintStream stream=new PrintStream(baos); 
    result.printResult(stream); 
    System.out.println(baos.toString());//show diff report 
    System.out.println("Done");

來源

2012-03-07 08:49:28 Rajesh

2

下面是3.2.2版本的作品爲例：

void diff(Connection referenceConnection, Connection targetConnection) throws LiquibaseException, IOException, ParserConfigurationException { 

    Liquibase liquibase = null; 

    try { 

     Database referenceDatabase = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new JdbcConnection(referenceConnection)); 
     Database targetDatabase = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new JdbcConnection(targetConnection)); 

     liquibase = new Liquibase("", new FileSystemResourceAccessor(), referenceDatabase); 
     DiffResult diffResult = liquibase.diff(referenceDatabase, targetDatabase, new CompareControl()); 
     new DiffToChangeLog(diffResult, new DiffOutputControl()).print(System.out); 

    } finally { 
     if (liquibase != null) { 
      liquibase.forceReleaseLocks(); 
     } 
    } 
}

來源

2014-10-24 12:41:02

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