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有两张表T1，T2，表结构和数据如下： create table t1 ( id int ); create table t2 ( id int, finished int ); insert into t1 values (1); insert into t1 values (2); insert into t1 values (3); insert into t1 value

mysqldump -u root -p[password] db_sth > db_sth.sql 报错：mysqldump: Got error: 1286: Unknown table engine 'InnoDB' when using LOCK TABLES mysql -u root -p[password] use db_sth; show tables;