1、执行 create table r like t,创建一个相同表结构的空表; 2、执行 alter table r discard tablespace,这时候 r.ibd 文件会被删除; 3、执行 flush table t for export,这时候 db1 目录下会生成一个 t.cfg 文件; 4、在 db1 目录下执行 cp t.cfg r.cfg; cp t.ibd r.ib
where a.sale_state=1 and b.device_status=2 and ifnull(a.del_flag,0)=0 ; 情况二: 表数据备份 create table l_biz_car_info_copy (select * from l_biz_car_info);
把sql语句copy出来,改一下表名和atuo_increment,然后在执行一下。 二,复制表数据,以及表结构 方法1: mysql> create table c select * from users; //复制表的sql Query OK, 4 rows affected (0.00 sec) Records: 4 Duplicates: 0 Warnings: 0 1. 2. 3. 不过这种方法的一个最不好的地方就是新表中...
Re: How to copy/move a table between two schemas in the same model in Mysql workbench? 9808 Hans Deragon March 09, 2018 08:56AM Sorry, you can't reply to this topic. It has been closed.Content reproduced on this site is the property of the respective copyright holders. It is not ...
1 要不你就添加字段,你要是混合使用alter table语句,那恕不进行instant的操作,例如一条语句又是加字段,又是删字段 2 字段只能加到表最后一列,你要是想在之间加什么字段,恕不管用 3 表的row_format 不能是压缩的 compressed 的格式 4 表里面有全文索引,no no no 不可以 ...
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1 row in set (0.00 sec)把sql语句copy出来,改一下表名和atuo_increment,然后在执行一下。 二,复制表数据,以及表结构 方法1: mysql> create table c select * from users; //复制表的sql Query OK, 4 rows affected (0.00 sec) Records: 4 Duplicates: 0 Warnings: 0 ...
alter table ALGORITHM [=] {DEFAULT | INSTANT | INPLACE | COPY} COPY: 这种操作是在原始表的一个副本上进行的,表数据会逐行从原始表复制到新表。在此过程中,不允许进行并发的数据修改操作。 INPLACE: 这种操作避免了复制表数据,但可能会就地重建表。在操作的准备和执行阶段,系统可能会短暂地对表进行独占的...
Full table copy:--table Range copy:--table-range Both table copy types require a set of common arguments: Source schema: The schema or catalog to which the table belongs. If quoting is required, it must be done using the syntax from the source RDBMS. For example, SQL Server uses[square...
Re: How do I load a copy of a table into RAM for frequent reading? Peter Brawley October 24, 2021 10:38PM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by...