背景：需要更改數(shù)據(jù)庫表空間，或者需要將數(shù)據(jù)庫中所有表的數(shù)據(jù)遷移到一個新的數(shù)據(jù)庫中。步驟：1.通過db2控制臺(db2cc)選中源數(shù)據(jù)庫中的所有表，將其導出成DDL腳本;2.根據(jù)需要對腳本進行必要的修改，譬如更改表空間為GATHER;3.新建數(shù)據(jù)庫，新建DMS表空間：GATHER;4.將DDL腳本在此數(shù)據(jù)庫中執(zhí)行;5.編寫代碼查詢源數(shù)據(jù)庫中的所有表，自動生成export腳本;6.編寫代碼查詢源數(shù)據(jù)庫中的所有表，自動生成import腳本;7.連接源數(shù)據(jù)庫執(zhí)行export腳本;8.連接目標數(shù)據(jù)庫執(zhí)行import腳本;附錄1:生成export腳本代碼示例：/*** 創(chuàng)建導出腳本* @param conn* @param creator　表創(chuàng)建者* @param filePath*/* 創(chuàng)建導出腳本* @param conn* @param creator　表創(chuàng)建者* @param filePathpublic void createExportFile(Connection conn,String creator,String filePath) throws Exception {DBBase dbBase = new DBBase(conn);String selectTableSql = "select name from sysibm.systables where creator = '" + creator + "' and type='T'";try {dbBase.executeQuery(selectTableSql);} catch (Exception ex) {throw ex;} finally {dbBase.close();}DBResult result = dbBase.getSelectDBResult();List list = new ArrayList();while (result.next()) {String table = result.getString(1);list.add(table);}StringBuffer sb = new StringBuffer();String enterFlag = "";for (int i = 0; i < list.size();i++) {String tableName = (String)list.get(i);sb.append("db2 "export to aa" + String.valueOf(i+1)+ ".ixf of ixf select * from " + tableName + """);sb.append(enterFlag);}String str = sb.toString();FileUtility.saveStringToFile(filePath, str, false);}附錄2:生成import腳本代碼示例/*** 創(chuàng)建裝載腳本* @param conn* @param creator　表創(chuàng)建者* @param filePath*/public void createLoadFile(Connection conn,String creator,String filePath) throws Exception {DBBase dbBase = new DBBase(conn);String selectTableSql = "select name from sysibm.systables where creator = '" + creator + "' and type='T'";try {dbBase.executeQuery(selectTableSql);} catch (Exception ex) {throw ex;} finally {dbBase.close();}DBResult result = dbBase.getSelectDBResult();List list = new ArrayList();while (result.next()) {String table = result.getString(1);list.add(table);}StringBuffer sb = new StringBuffer();String enterFlag = "";for (int i = 0; i < list.size();i++) {String tableName = (String)list.get(i);sb.append("db2 "load from aa" + String.valueOf(i+1)+ ".ixf of ixf into " + tableName + " COPY NO without prompting "");sb.append(enterFlag);}String str = sb.toString();FileUtility.saveStringToFile(filePath, str, false);}附錄3:export腳本示例db2connecttotestdbusertestpasswordtestdb2"exporttoaa1.ixfofixfselect*fromtable1"db2"exporttoaa2.ixfofixfselect*fromtable2"db2connectreset附錄4:import腳本示例db2connecttotestdbusertestpasswordtestdb2"loadfromaa1.ixfofixfreplaceintotable1COPYNOwithoutprompting"db2"loadfromaa2.ixfofixfreplaceintotable2COPYNOwithoutprompting"db2connectreset