\i FILE execute commands fromfile\o [FILE] send all query results tofileor |pipe \qecho [STRING]writestringto query output stream (see \o) Informational (options: S= show system objects, + =additional detail) \d[S+] list tables, views, and sequences \d[S+] NAME describe table, vi...
A single PostgreSQL server can contain many databases. Let’s explore three different approaches to list databases in PostgreSQL!
在数据库集群中,有3个配置文件,分别是:postgresql.conf,pg_hba.conf和pg_ident.conf。其中postgresql.conf为服务器主要的配置文件,pg_hba.conf是客户端认证配置文件,pg_ident.conf用来配置哪些操作系统用户可以映射为数据库用户。 连接与认证 参考文章: 资源消耗 服务器的运行会消耗一定的资源,通过设置服务器的参数,...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 [root@much~]# hostnamectl Static hostname:much Icon name:computer-vmChassis:vm MachineID:33dc28f7e76c4903ad9b603b77e29a7c BootID:902c440d59844169b696287b0d63d1e4Virtualization:kvm Operating System:CentOS Linux7(Core)CPEOSName:cpe:/o:c...
Buffer \e [FILE] [LINE] edit the query buffer (or file) with external editor \ef [FUNCNAME [LINE]] edit function definition with external editor...Informational (options: S = show system objects, + = additional detail) \d[S+] list tables, views, and sequences \d[...
postgres=# \l List of databases Name | Owner | Encoding | Collate | Ctype | Access privileges ---+---+---+---+---+--- postgres | tbase | UTF8 | en_US.utf8 | en_US.utf8 | template0 | tbase | UTF8 | en_US.utf8 | en_US.utf8 | =c/tbase + | | | | | tbase=CT...
query_sql = """ SELECT datname FROM pg_database WHERE datistemplate = false ORDER BY datname; """ cur.execute(query_sql) # 获取所有查询结果(返回格式:[(dbname1,), (dbname2,), ...]) db_list = cur.fetchall() # 转换为纯数据库名列表(去除元组结构) ...
[ WITH [ RECURSIVE ] with查询语句(with_query) [, ...] ] SELECT [ ALL | DISTINCT [ ON ( 表达式 [, ...] ) ] ] [ * | 表达式 [ [ AS ] 输出名称 ] [, ...] ] [ FROM from列表中项 [, ...] ] [ WHERE 条件 ] [ GROUP BY grouping_element [, ...] ] ...
sequence profile.baselines_bl_id_seq sequence profile.servers_server_id_seq sequence profile.session_attr_sess_attr_id_seq table profile.act_query table profile.baselines table profile.bl_samples table profile.funcs_list table profile.import_queries_version_order table profile.indexes_list table profil...
被如下接口引用:DescribeSlowQueryAnalysis。 名称类型描述 DatabaseName String 慢SQL查询的数据库名示例值:postgres UserName String 慢SQL执行的用户名示例值:postgres NormalQuery String 抽象参数之后的慢SQL示例值:select $1 ClientAddr String 慢SQL执行的客户端地址示例值:::1 CallNum Integer 在选定时间范围内慢...