'||E'\n';ELSEv_table_ddl :=v_table_ddl||' '--note:two char spacer to start, to indent the column||'CONSTRAINT'||' '||'"'||v_constraint_record.constraint_name||'" '||v_constraint_record.constraint_definition||','||E'\n';ENDIF;END...
-- 查看指定表对象testtable的模式postgres=#SELECTrelname,relnamespace,nspnameFROMpg_class c,pg_namespace nWHERErelname='testtable'ANDrelnamespace=n.oid;*relname|relnamespace|nspname---+---+---testtable|2200|public (1row)-- 查看指定表对象testtable的owner(即role)。postgres=#selectrelname,rol...
[ ONLY ] table_name [ * ] [ [ AS ] alias [ ( column_alias [, ...] ) ] ] ( select ) [ AS ] alias [ ( column_alias [, ...] ) ] function_name ( [ argument [, ...] ] ) [ AS ] alias [ ( column_alias [, ...] | column_definition [, ...] ) ] function_name...
在弹出的"Preference Set"界面中,对"Personal Preferences" 以及下面的"Definition"->"Description"进行一下设置. 19. 在窗口标题栏内显示文件的完全路径 Tools->Preferences->User Interface->Options 勾选"Show complete file path in windows titles" 20. Object Brower中自定义Object的顺序以及登录后默认自动选中My...
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[S+] NAME describe table, view, sequence, or index \da...
[ ONLY ] table_name [ * ] [ [ AS ] alias [ ( column_alias [, ...] ) ] ] 更多关于大数据 PostgreSQL 系列的学习文章,请参阅:PostgreSQL 数据库,本系列持续更新中。 SQL 语句[2] 一个SQL 语句通常包含了关键字、标识符(字段)、常量、特殊符号等,下面是一个简单的 SQL 语句: ...
将RPM和源码安装两种方式的操作流程进行对比,会发现源码安装需要处理很多依赖问题的琐事,显然比较麻烦,这里个人更偏向官方推荐的RPM方式进行Postgresql安装搭建,省去很多钻牛角尖的时间。 参考资料 Linux部署postgresql并开启远程访问 - 掘金 (juejin.cn) # PostgreSQL在Linux下的两种安装方式 ...
In PostgreSQL, advanced concepts like table inheritance and function overloading are available. Working on Postgres is similar to its alternatives present in the market and it is rapidly growing to outshine them in the market. PostgreSQL has rich active community support and is well-maintained by ...
– 视图触发器返回空测试 – 创建基表 digoal=> create table tbl (id int, info text, crt_time timestamp); CREATE TABLE – 创建视图 digoal=> create view v_tbl as select * from tbl; CREATE VIEW – 创建触发器函数 digoal=> create or replace function tg() returns trigger as ...
1.3 show tables & show create 1.4 查询耗时 1.5 show grants 1.6 set names 1.7 \G 1.8 source 1.9 edit 1.10 查参数 2. 快速查询帮助 2.1 MySQL 2.2 PostgreSQL 前言 PSQL 是 PostgreSQL 自带的命令行客户端,就好比 MySQL 的 mysql -h -p 客户端一样,不经常用,怕忘记,在此对比 MySQL 记录下。