diff --git a/netease_music/sql/export/export_sql_generator.js b/netease_music/sql/export/export_sql_generator.js
index ea1a8aa..cff4d11 100644
--- a/netease_music/sql/export/export_sql_generator.js
+++ b/netease_music/sql/export/export_sql_generator.js
@@ -55,9 +55,29 @@ function fill(num, fillers, length) {
 
 // #############################################
 
+// // 使用 mysqldump 分块导出数据表
+// let rangeTxtName = "song"; // 分布区间 "song" "album" "artist" "user"
+// const dumpTable = "lyric"; // "comment_progress";
+// const fieldName = `song_id`;
+// var a = fs.readFileSync(path.join(__dirname, `distribution_range/${rangeTxtName}.txt`), "utf-8").trim().split("\n").reverse().map(i => i.trim());
+// // console.log(a);
+// let outputArr = [`@echo off`, `D:`, `cd D:/Program/Development/Environment/phpstudy_pro/Extensions/MySQL8.0.12/bin`];
+// for (let i = 0; i < a.length; i++) {
+//     let where;
+//     if (a[i + 1]) {
+//         where = `${fieldName}>=${a[i]} and ${fieldName}<${a[i + 1]}`;
+//     } else {
+//         where = `${fieldName}>=${a[i]}`;
+//     }
+//     outputArr.push(`mysqldump neteasemusic -hrm-bp18qrc78dj7vd3newo.rwlb.rds.aliyuncs.com -uroot -pOj13EzoppxXvMmjPKh --tables ${dumpTable} --where="${where}" --skip-add-drop-table --set-gtid-purged=OFF > ${absPath}/${dumpTable}_${fill(i, '0', 4)}.sql`);
+// }
+// outputArr.push("echo done.");
+// console.log(outputArr.join('\n\n'));
+
+// #############################################
+
 // 使用 mysqldump 分块导出数据表
 let rangeTxtName = "song"; // 分布区间 "song" "album" "artist" "user"
-const dumpTable = "lyric"; // "comment_progress";
 const fieldName = `song_id`;
 var a = fs.readFileSync(path.join(__dirname, `distribution_range/${rangeTxtName}.txt`), "utf-8").trim().split("\n").reverse().map(i => i.trim());
 // console.log(a);
@@ -69,7 +89,7 @@ for (let i = 0; i < a.length; i++) {
     } else {
         where = `${fieldName}>=${a[i]}`;
     }
-    outputArr.push(`mysqldump neteasemusic -hrm-bp18qrc78dj7vd3newo.rwlb.rds.aliyuncs.com -uroot -pOj13EzoppxXvMmjPKh --tables ${dumpTable} --where="${where}" --skip-add-drop-table --set-gtid-purged=OFF > ${absPath}/${dumpTable}_${fill(i, '0', 4)}.sql`);
+    outputArr.push(`INSERT INTO song SELECT * FROM song_old WHERE ${where}; -- ${i}`);
 }
 outputArr.push("echo done.");
-console.log(outputArr.join('\n\n'));
+console.log(outputArr.join('\n'));
diff --git a/netease_music/sql/neteasemusic.sql b/netease_music/sql/neteasemusic.sql
index 7b0308c..5ab957a 100644
--- a/netease_music/sql/neteasemusic.sql
+++ b/netease_music/sql/neteasemusic.sql
@@ -201,10 +201,10 @@ CREATE TABLE `song`  (
   `image` varchar(200) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '封面图 http://p1.music.126.net/ 后面的部分',
   `pub_date` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '发布日期(弃用)',
   `pub_time` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '发布日期  毫秒为单位的Unix时间戳',
-  `no_copyright_rcmd` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT 'None表示可以播，非空表示无版权',
   `mv` int(10) UNSIGNED NULL DEFAULT NULL COMMENT '非零表示有MV ID',
   `single` tinyint(4) NULL DEFAULT NULL COMMENT '0: 有专辑信息或者是DJ节目  1: 未知专辑',
   `version` int(11) NOT NULL DEFAULT 1 COMMENT '歌曲版本信息',
+  `no_copyright_rcmd` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT 'None表示可以播，非空表示无版权',
   `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '爬取时间',
   `modify_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '最后更新时间',
   `data_version` tinyint(4) NOT NULL DEFAULT 1 COMMENT '数据记录版本(如果有字段调整则整体+1)',
diff --git a/netease_music/sql/statistic.sql b/netease_music/sql/statistic.sql
index 449c576..b7f7e4a 100644
--- a/netease_music/sql/statistic.sql
+++ b/netease_music/sql/statistic.sql
@@ -1,15 +1,16 @@
 -- 更新统计数据
 -- songCount 容易超时，有几张表查询时容易发生死锁，所以请在没有爬取时进行统计
+-- 4G: 4294967296 (4 * 1024 * 1024 * 1024)  64M: 67108864
+-- my.ini 配置文件中设置 innodb_buffer_pool_size=4G
+show variables like "%innodb_buffer_pool_size%";
 DELETE FROM analysis WHERE `key` LIKE '%_old';
 UPDATE analysis SET `key`=concat(`key`,'_old'), modify_time=modify_time WHERE `key` NOT LIKE '%_old';
 INSERT INTO analysis (`key`, `value`) VALUES ('songCount', (SELECT count(*) as count FROM song) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
 INSERT INTO analysis (`key`, `value`) VALUES ('songWaiting', (SELECT count(*) as count FROM wait_fetch_song) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
 INSERT INTO analysis (`key`, `value`) VALUES ('playlistCount', (SELECT count(*) AS count FROM playlist) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
 INSERT INTO analysis (`key`, `value`) VALUES ('albumCount', (SELECT count(*) as count FROM album) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
--- INSERT INTO analysis (`key`, `value`) VALUES ('albumWaiting', (SELECT count( DISTINCT album_id ) as count FROM song_album_relation WHERE album_id NOT IN ( SELECT album_id FROM album )) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
 INSERT INTO analysis (`key`, `value`) VALUES ('albumWaiting', (SELECT count(*) as count FROM wait_fetch_album) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
 INSERT INTO analysis (`key`, `value`) VALUES ('artistCount', (SELECT count(*) AS count FROM artist) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
--- INSERT INTO analysis (`key`, `value`) VALUES ('artistWaiting', (SELECT count( DISTINCT artist_id ) as count FROM song_artist_relation WHERE artist_id NOT IN ( SELECT artist_id FROM artist )) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
 INSERT INTO analysis (`key`, `value`) VALUES ('artistWaiting', (SELECT count(*) as count FROM wait_fetch_artist) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
 INSERT INTO analysis (`key`, `value`) VALUES ('lyricCount', (SELECT count(*) AS count FROM lyric) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
 INSERT INTO analysis (`key`, `value`) VALUES ('commentCount', (SELECT count( DISTINCT song_id ) AS count FROM comment) ) ON DUPLICATE KEY UPDATE `value` = VALUES(`value`);
diff --git a/netease_music/sql/structure.sql b/netease_music/sql/structure.sql
index 2b19ddd..e338de4 100644
--- a/netease_music/sql/structure.sql
+++ b/netease_music/sql/structure.sql
@@ -16,10 +16,10 @@ CREATE TABLE `song` (
   `image` varchar(200) DEFAULT NULL COMMENT '封面图 http://p1.music.126.net/ 后面的部分',
   `pub_date` varchar(100) DEFAULT NULL COMMENT '发布日期(弃用)',
   `pub_time` varchar(100) DEFAULT NULL COMMENT '发布日期  毫秒为单位的Unix时间戳',
-  `no_copyright_rcmd` varchar(255) DEFAULT NULL COMMENT 'None表示可以播，非空表示无版权',
   `mv` int(10) unsigned DEFAULT NULL COMMENT '非零表示有MV ID',
   `single` tinyint(4) DEFAULT NULL COMMENT '0: 有专辑信息或者是DJ节目  1: 未知专辑',
   `version` int(11) NOT NULL DEFAULT '1' COMMENT '歌曲版本信息',
+  `no_copyright_rcmd` varchar(255) DEFAULT NULL COMMENT 'None表示可以播，非空表示无版权',
   `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '爬取时间',
   `modify_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '最后更新时间',
   `data_version` tinyint(4) NOT NULL DEFAULT '1' COMMENT '数据记录版本(如果有字段调整则整体+1)',
diff --git a/netease_music/watch.js b/netease_music/watch.js
index 0a26925..f3db298 100644
--- a/netease_music/watch.js
+++ b/netease_music/watch.js
@@ -13,7 +13,7 @@ const sleepUtils = require('../utils/sleepUtils');
 async function main() {
     do {
         await neteaseMusic.watch();
-        await sleepUtils.sleep(10 * 1000);
+        keepWatching && await sleepUtils.sleep(10 * 1000);
     } while (keepWatching)
 }
 main();
\ No newline at end of file