Java拼接批量新增SQL语句
发布时间:2020-12-12 02:09:31 所属栏目:MySql教程 来源:网络整理
导读:StringBuffer addSql = new StringBuffer(1000 ); int batchSize = 50 ; int executeTime = 0 ; SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss" for ( int i=0; itrackIds.size(); i++ ) { if (i/batchSize executeTime) { // 50轮执行
StringBuffer addSql = new StringBuffer(1000); int batchSize = 50; int executeTime = 0; SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"for (int i=0; i<trackIds.size(); i++) { if(i/batchSize > executeTime) {//50轮执行一次SQL(拷贝数据量太大) String sql = addSql.substring(0,addSql.length() - 1); baseJdbcDao.exceute(sql,null); executeTime++;执行次数++ } if(i%batchSize == 0) {50轮重新拼接SQL(防止SQL过长) addSql = addSql.delete(0,addSql.length()); addSql.append("insert into " + DatabaseConstants.BASE + ".yk_behavior_monitor (TRACK_ID,PROGRAM_ID," + "BEHAVIOR_ID,ACTION_TOTAL,ACTION_COMPLETED,CREATED_BY,CREATED_DATE,LAST_UPDATED_BY,LAST_UPDATED_DATE,REMOVE_FLAG) values"); } for (Integer behaviorId : behaviorIds) { addSql.append("("); addSql.append(trackIds.get(i) + ","); addSql.append(programId + ",1)">); addSql.append(behaviorId + ",1)">); addSql.append("0,1)">); addSql.append(user.getUserId() + ",1)">); addSql.append("'" + sdf.format(new Date()) + "',1)">); addSql.append("0),1)">); } } String sql = addSql.substring(0,1)">); baseJdbcDao.exceute(sql,1)">null); ? (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |