socket函数(安装电话机)头文件:#include<sys/socket.h> int socket(int family, int type, int protocol); //返回套接字描述符sockfd, 失败返回-1参数 1.family:协议族PF_INET/AF_INET2.type:套接字类型,流式套接字SOCK_STREAM,数据报套接字SOCK_DGRAM,原始套接字SOCK_RAW3.protocol:协议类型(TCP/UDP/SCTP) bind函数:(绑定号码)
在上篇文章Could not obtain information about Windows NT group/user 'xxxx\xxxx', error code 0x5里面,我介绍了SQL Server服务启动账号域账号锁定的情况下,有些Job Owner为域账号的作业执行会报错,其实在域账号被锁定的情况下(该域账号是SQL Server服务的启动账号),执行xp_cmdshell也会出错,错误信息如下所示: 在执行xp_cmdshell的过程中出错,调用'LogonUserW'失败,
use test go ALTER DATABASE test SET SINGLE_USER DBCC CHECKDB (test, repair_allow_data_loss) with NO_INFOMSGS go ALTER DATABASE test SET MULTI_USER go 对于单个数据库报错了,运行这个修复不行.后来我在tempdb运行才可以. dbcc checkdb('tempdb') 其实开始的时候还有另一个错误: 尝试在数据库 5 中提取逻辑页 (1:1640)
shell脚本中sqlite3命令查询数据库失败返回空,并将错误信息打印到标准错误输出 如: #/bin/sh local ret='sqlite3 test.db "select test from test;"' 或: local ret=$(sqlite3 test.db "select test from test;") 如果test.db被锁定,ret将为空,标准错误输出有信息“Error:database is locked”.
Pycharm中 import 引入同级文件失败,如下所示: “This inspection detects names that should resolve but don't. Due to dynamic dispatch and duck typing, this is possible in a limited but useful number of cases. Top-level and class-level items are supported better than