<\/span><\/h3>\n\n\n\n\u901a\u8fc7information_schema.tables\u8868\uff0c\u62ff\u5230\u8be5\u8282\u70b9\u7684\u5206\u7247\u7684SCN\u53f7\u548c\u6700\u540e\u66f4\u65b0\u4fe1\u606f\u3002 \u9700\u8981\u6839\u636eupdate_time,\u5224\u65ad\u6700\u540e\u5220\u9664\u64cd\u4f5c\uff0c\u662f\u5426\u6d89\u53ca\u4e86\u8fd9\u4e2a\u5206\u7247\u3002<\/p>\n\n\n\n
\u5982\u4e0b\u7684\u8f93\u51fa\uff0ctt_n1\u7684\u66f4\u65b0\u65f6\u95f4\u662f14:20:33\uff0c\u800ctt_n2\u662f14:20:11\uff0c\u53ef\u4ee5\u770b\u51fa\u4e0a\u6b21\u7684delete\u64cd\u4f5c\uff0c\u53ea\u5f71\u54cd\u4e86n1\u5206\u7247\uff0c\u800c\u6ca1\u6709\u5f71\u54cdn2\u5206\u7247\u3002\u5bf9\u4e8e\u591a\u4e2a\u6570\u636e\u8282\u70b9\u7684\u96c6\u7fa4\uff0c\u6bcf\u4e2a\u5206\u7247\u90fd\u8981\u68c0\u67e5\u4e00\u6b21\uff0c\u627e\u5230\u4e0a\u6b21delete\u5f71\u54cd\u7684\u5206\u7247\u53f7\u3002<\/p>\n\n\n\n
\u6ce8\u610f\uff0c\u5404\u4e2a\u8282\u70b9\u7684\u3010\u65f6\u949f\u3011\u5982\u679c\u4e0d\u540c\uff0c\u4e14\u8868\u7684DML\u64cd\u4f5c\u5f88\u9891\u7e41\uff0c\u5219\u3010\u975e\u5e38\u5bb9\u6613\u3011\u51fa\u73b0\u3010\u8bef\u5224\u3011\uff0c\u5bfc\u81f4\u6062\u590d\u5931\u8d25\u3002<\/span><\/p>\n\n\n\n[gbase@rh6-1 ~]$ gncli testdb\n\nGBase client 8.6.2.43-R28 .125499. Copyright (c) 2004-2021, GBase. All Rights Reserved.\n\ngbase> select scn,UPDATE_TIME from information_schema.tables where table_name='tt_n1';\n+---------+---------------------+\n| scn | UPDATE_TIME |\n+---------+---------------------+\n| 5242933 | 2021-06-17 14:20:33 |\n+---------+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n\ngbase> select now();\n+---------------------+\n| now() |\n+---------------------+\n| 2021-06-17 14:21:11 |\n+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n\ngbase> select scn,UPDATE_TIME from information_schema.tables where table_name='tt_n2';\n+---------+---------------------+\n| scn | UPDATE_TIME |\n+---------+---------------------+\n| 5242931 | 2021-06-17 14:20:11 |\n+---------+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n\ngbase>\n<\/code><\/pre>\n\n\n\n<\/span>\u5c1d\u8bd5\u56de\u9000\u8be5\u5206\u7247<\/span><\/h3>\n\n\n\n\u518d\u6b21\u58f0\u660e\uff1a\u8be5\u64cd\u4f5c\u5982\u679c\u8bc4\u4f30\u9519\u8bef\uff0c\u5c06\u5bfc\u81f4\u6570\u636e\u5185\u5bb9\u5904\u4e8e\u4e00\u4e2a\u4e0d\u53ef\u77e5\u7684\u72b6\u6001\u3002<\/p>\n\n\n\n
\u6839\u636e\u6d4b\u8bd5\u76842\u8282\u70b9\u96c6\u7fa4\uff0cn1\u5206\u7247\u9700\u8981\u6062\u590d\uff0c\u901a\u8fc7\u5982\u4e0b\u7684revert\u8bed\u53e5\uff0c\u5c1d\u8bd5\u6062\u590d\u3002<\/p>\n\n\n\n
\u53ef\u4ee5\u770b\u5230\uff0ctt_n1\u8868\uff0c\u88ab\u5220\u9664\u7684id=1\u7684\u6570\u636e\u56de\u6765\u4e86\u3002\u67e5\u770btables\u8868\uff0c\u53ef\u4ee5\u770b\u5230scn\u4ece 5242933 \u51cf\u5c11\u5230\u4e865242932\u3002<\/p>\n\n\n\n
[gbase@rh6-1 ~]$ gncli -h10.0.2.202 testdb\n\nGBase client 8.6.2.43-R28 .125499. Copyright (c) 2004-2021, GBase. All Rights Reserved.\n\ngbase> select * from testdb.tt_n1;\n+------+\n| id |\n+------+\n| 2 |\n| 3 |\n+------+\n2 rows in set (Elapsed: 00:00:00.00)\n\ngbase> revert table testdb.tt_n1 scn_number 5242933;\nQuery OK, 0 rows affected (Elapsed: 00:00:00.04)\n\ngbase> select * from testdb.tt_n1;\n+------+\n| id |\n+------+\n| 1 |\n| 2 |\n| 3 |\n+------+\n3 rows in set (Elapsed: 00:00:00.00)\n\ngbase> select scn,UPDATE_TIME from information_schema.tables where table_name='tt_n1';\n+---------+---------------------+\n| scn | UPDATE_TIME |\n+---------+---------------------+\n| 5242932 | 2021-06-17 14:20:21 |\n+---------+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n<\/code><\/pre>\n\n\n\n<\/span>\u9488\u5bf9\u526f\u672c\uff0c\u4e5f\u8981\u505a\u76f8\u540c\u7684\u64cd\u4f5c<\/span><\/h3>\n\n\n\n[gbase@rh6-1 ~]$ gncli -h10.0.2.201 testdb\n\nGBase client 8.6.2.43-R28 .125499. Copyright (c) 2004-2021, GBase. All Rights Reserved.\n\ngbase> select * from testdb.tt_n1;\n+------+\n| id |\n+------+\n| 2 |\n| 3 |\n+------+\n2 rows in set (Elapsed: 00:00:00.01)\n\ngbase> revert table testdb.tt_n1 scn_number 5242933;\nQuery OK, 0 rows affected (Elapsed: 00:00:00.04)\n\ngbase> select * from testdb.tt_n1;\n+------+\n| id |\n+------+\n| 1 |\n| 2 |\n| 3 |\n+------+\n3 rows in set (Elapsed: 00:00:00.00)\n\ngbase>\n<\/code><\/pre>\n\n\n\n<\/span>\u56de\u5230\u96c6\u7fa4\u67e5\u8be2\u9a8c\u8bc1<\/span><\/h2>\n\n\n\n\u53ef\u4ee5\u770b\u5230\u88ab\u6211\u4eec\u5220\u9664\u7684id=1\u7684\u6570\u636e\u5df2\u7ecf\u6062\u590d\u4e86\u3002<\/p>\n\n\n\n
[gbase@rh6-1 ~]$ gccli testdb\n\nGBase client 8.6.2.43-R28 .125499. Copyright (c) 2004-2021, GBase. All Rights Reserved.\n\ngbase> select * from testdb.tt;\n+------+\n| id |\n+------+\n| 1 |\n| 2 |\n| 3 |\n+------+\n3 rows in set (Elapsed: 00:00:00.02)\n<\/code><\/pre>\n\n\n\n<\/p>\n\n\n\n
<\/span>\u610f\u5916\u5904\u7406<\/span><\/h2>\n\n\n\n\u5982\u679c\u524d\u9762\u7684revert\u5f04\u9519\u4e86\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7revert\u518d\u56de\u9000\u5230\u6700\u65b0\u7684\u7248\u672c\uff0c\u8fd9\u4e2arevert\u4f60\u53ef\u4ee5\u7406\u89e3\u6210\u3010\u5207\u6362<\/span>\u3011\u7684\u610f\u601d\u3002\u4f46\u5982\u679c\u591a\u4e2a\u5206\u7247\uff0c\u5207\u6362\u9519\u4e86\uff0c\u90a3\u4e48\u6570\u636e\u5c31\u4f1a\u5904\u4e8e\u4e00\u79cd\u672a\u77e5\u7684\u72b6\u6001\u4e86\u3002<\/p>\n\n\n\n[gbase@rh6-1 ~]$ gncli -h10.0.2.202 testdb\n\nGBase client 8.6.2.43-R28 .125499. Copyright (c) 2004-2021, GBase. All Rights Reserved.\n\ngbase> select * from testdb.tt_n1;\n+------+\n| id |\n+------+\n| 1 |\n| 2 |\n| 3 |\n+------+\n3 rows in set (Elapsed: 00:00:00.00)\n\ngbase> select scn,UPDATE_TIME from information_schema.tables where table_name='tt_n1';\n+---------+---------------------+\n| scn | UPDATE_TIME |\n+---------+---------------------+\n| 5242932 | 2021-06-17 14:20:21 |\n+---------+---------------------+\n1 row in set (Elapsed: 00:00:00.00)\n\ngbase> revert table testdb.tt_n1 scn_number 5242932;\nQuery OK, 0 rows affected (Elapsed: 00:00:00.03)\n\ngbase> select scn,UPDATE_TIME from information_schema.tables where table_name='tt_n1';\n+---------+---------------------+\n| scn | UPDATE_TIME |\n+---------+---------------------+\n| 5242933 | 2021-06-17 14:20:33 |\n+---------+---------------------+\n1 row in set (Elapsed: 00:00:00.01)\n\ngbase> select * from testdb.tt_n1;\n+------+\n| id |\n+------+\n| 2 |\n| 3 |\n+------+\n2 rows in set (Elapsed: 00:00:00.00)<\/code><\/pre>\n\n\n\n<\/p>","protected":false},"excerpt":{"rendered":"
\u5357\u5927\u901a\u7528GBase 8a\u672c\u8eab\u6ca1\u6709\u56de\u6536\u7ad9\u529f\u80fd\uff0c\u88ab\u5220\u9664\u7684\u6570\u636e\u662f\u4e0d\u80fd\u901a\u8fc7SQL\u547d\u4ee4\u76f4\u63a5\u6062\u590d\u7684\u3002\u672c\u6587\u4ecb\u7ecd\u4e00\u79cd\u975e\u6b63\u5e38\u624b\u6bb5\uff0c\u7528\u6765\u3010\u5c1d\u8bd5\u3011\u6062\u590d\u6700\u540e\u4e00\u6b21\u5220\u9664\u7684\u6570\u636e\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-6438","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/6438","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=6438"}],"version-history":[{"count":6,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/6438\/revisions"}],"predecessor-version":[{"id":6445,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/6438\/revisions\/6445"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=6438"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=6438"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=6438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}