mysql -A不预读数据库信息(use dbname 更快)—Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A mysql> use dbname Reading table information for completion of table and column names You…
登录数据库后,选择数据库时发现以下提示, mysql> use testReading table information for completion of table and column namesYou can turn off this feature to get a quicker startup with -A Database changedmysql> 意思是 预读这个库中表以及表列信息,一般原因是当库中表很多,表中数据很大时,就会出现执行use <库名>后半天…
mysql -A不预读数据库信息(use dbname 更快)—Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A 出现问题的原因是:: 我们进入mysql 时,没有使用-A参数: 即我们使用 mysql -hhostname -uusern…
mysql> use ad_detail_page;Reading table information for completion of table and column namesYou can turn off this feature to get a quicker startup with -A…
mysql> use mydb Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A 访问数据库的时候出现以上情况, 一般产生这个问题是由于MYSQL中数据库太大,导致读取预读时间太长,从而显示这个提示,如果之前都没有遇到这个问题,那么产生这个问题的原因可能是由于有改变数据库信息的操作,比如d…
先上代码 <script type="text/javascript" language="javascript"> var idTmr; function getExplorer() { var explorer = window.navigator.userAgent; //ie if (explorer.indexOf("MSIE") >= 0) { return 'ie'; } …
最近遇到一个关于发布订阅(Replication)的奇葩问题,特此记录一下这个案例.我们一SQL SERVER数据库服务器出现大量告警.告警信息如下所示: DESCRIPTION: Replication-Replication Distribution Subsystem: agent xxxxxx failed. Column names in each table must be unique. Column name 'xxxxx' in table 'dbo.xxxxxx' is sp…
While trying to apply patches to upgrade to 12.2.4, adop failed due to the below errors. Validating system setup... [ERROR] Failed to execute SQL statement : select AD_ZD_ADOP.GET_INVALID_NODES() from dual [ERROR] Error Message : [ERROR] Failed to ex…
If you run into the following error message: An explicit value for the identity column in table '<TABLE_NAME>' can only be specified when a column list is used and IDENTITY_INSERT is ON. It can mean two things. One you've not enabled identity insert…
电脑重装了sqlserver2008 R2(英文版)后,新建数据表,新建字段,发现有个字段类型设置错了,想修改字段类型,而该表已经保存好了,即保存后修改字段属性.但无法保存修改后的设置,提示“Saving changes is not permitted"(具体如下图) 解决方法: 在菜单栏找到Tools->options,找到Designers,然后将Prevent saving changes that require table re_creation前面的勾去掉,保存后即可. 如果…
mysql中You can't specify target table for update in FROM clause错误的意思是说,不能先select出同一表中的某些值,再update这个表(在同一语句中). 例①如下面这个sql: 代码如下: delete from tbl where id in ( select max(id) from tbl a where EXISTS ( select 1 from tbl b whe…
使用MySQL 5.7.24版本的安装文件替换MySQL 5.7.19版本的安装文件,数据库复制频繁中断,查看error日志发现下面错误: [Warning] InnoDB: Table mysql/innodb_index_stats has length mismatch in the column name table_name. Please run mysql_upgrade 解决办法: 在MySQL服务正常运行的状态下,使用mysql_upgrade命令进行处理: mysql_upg…