下载所需要的QT-creator :qt-creator-opensource-windows-x86-4.1.0.exe 下载所需要的QT库:qt-win-opensource-4.8.5-mingw.exe 上面两个文件此网站能下载:Qt Downloads 下载所需要编译库:MinGW-gcc440_1.zip 这个库推荐(这是csdn论坛上的,索性是免费的)下载 https://blog...猜你...
jps是用来查看进程的命令。常常要用jps来查看名称服务是否已启动,但是某些机器报错如下: -bash: jps: command not found 解决办法如下: 一、检查基础配置 which Java / java -version 如果指向的是1.5那说明版本太低了,需要更新版本。删除旧的软链接,重新添加 &nb...ArcGIS...
\d+ [ pattern ] 对于每个匹配pattern的关系(表,视图,索引或者序列), 显示所有列,它们的类型,表空间(如果不是缺省的)和任何特殊属性,象NOTNULL或缺省等--只要存在。 如果实际上这个关系是一个表,任何已定义的索引,主键,唯一约束相关的索引,规则,约束,和触发器也同样显示出来, 如果关系是一个视图,还显示视图的...
This article will be useful for those who have already installed PostgreSQL on personal computers. In case you still haven’t,this blog postwill come in handy. Now, we will focus on the most popular ways of accessing the PostgreSQL database on Windows. We will describe the PostgreSQL connecti...
命令行历史存储在 ~/.psql_history,或者在 Windows 里是 %APPDATA%\postgresql\psql_history。 注意 AI检测代码解析 一些psql的早期版本允许一个单字母的反斜杠命令(元命令)的第一个参数直接跟在命令后面, 而不用空白间隔。出于兼容性原因,这个特性仍然在某些程度上被支持,但是我不准备在这里详细解释,因为我不鼓励...
Since this is probably the first time you are trying to connect to a PostgreSQL database that you have installed, we will cover some of the possible scenarios you may encounter so you can start working in just a short period of time. ...
\cd [DIR] change the current working directory \timing [on|off] toggle timing of commands (currently off) \! [COMMAND] execute command in shell or start interactive shell Variables \prompt [TEXT] NAME prompt user to set internal variable \set [NAME [VALUE]] set internal variable, or list...
Always wrap your connection string in single quotes to avoid the shell interpreting any special characters. PGPASSWORD environment variable Best practice is not to have your password in your connection string or in your command history. Instead, you can use the PGPASSWORD environment variable to sto...
\cd [DIR] change the current working directory \timing [on|off] toggle timing of commands (currently off) \! [COMMAND] execute command in shell or start interactive shell Variables \prompt [TEXT] NAME prompt user to set internal variable ...
AND tablename NOT LIKE 'sql_%'ORDER BY tablename;列出数据库名 \l 或 SELECT datname FROM pg_database;切换数据库 \c 数据库名 1、通过命令⾏查询 \d 数据库 —— 得到所有表的名字 \d 表名 —— 得到表结构 2、通过SQL语句查询 "select * from pg_tables" —— 得到当前db中所有表的信息（...