1.快速清空大量数据表数据,但是还原不了 alter table rm_customer activate not logged initially with empty table2.大量导出表语句select 'db2 export from d:\exportdb\'||tabname||'.dat select * from '||tabname||';' from syscat.tables where TABSCHEMA='DB2ADMIN'and tabname not in (s
插入一个很简单的sql语句时候,mysql一直报错: [SQL] INSERT INTO ORDER ( id, activity_id, order_type, phone, order_amount, order_state, pay_type)VALUES ( '4', '2121313', '1', '13552444989', '1', '1', '1' ) [Err] 1064 - You have an error in your SQL syntax; check the man
') ON DUPLICATE KEY UPDATE sort_name = "vipset"; 重点在 ON DUPLICATE KEY UPDATE sort_name = "vipset" DELIMITER $$ DROP PROCEDURE IF EXISTS `ALTER_Field`$$ CREATE PROCEDURE `ALTER_Field`() BEGIN IF EXISTS (SELECT * FROM information_schema.
导SQL数据库结构+数据时,如果数据是批量插入的话会报错:2006 - MySQL server has gone away. 解决办法:找到你的mysql目录下的my.ini配置文件(如果安装目录没有my.ini文件,那么你应该可以看见一个my-default.ini文件,那就直接拷贝一份然后修改名字为my.ini),加入以下代码 max_allowed_packet=500M wait_timeout=288000 interactive_timeout = 288000 自己看情况更改数值
新建了一个表空间t101,在dba_tablespaces和dba_data_files都出现了,在dba_free_space却没有,这个很有可能是表空间满了. 插入数据会报错:ORA-01653: unable to extend table SYS.TEST by 128 in tablespace TBS1后就在dba_free_space里查不到tbs1了 SQL> select tablespace_name,status from dba_tablespaces; TABLESPA
导SQL数据库结构+数据时,如果数据是批量插入的话会报错:2006 - MySQL server has gone away. 解决办法:找到你的mysql目录下的my.ini配置文件,加入以下代码 max_allowed_packet=500M wait_timeout=288000 interactive_timeout = 288000 自己看情况更改数值,最后记得重启你的mysql服务 这样的话就能很好的解决MySQL server has gone away问题了.max_allowe