The following script in postgreSQL throws an error saying, "CREATE DATABASE cannot be executed from a function or multi-command string" do $$ begin If not exists (select 1 from pg_database where datname = 'TestDB') Then CREATE DATABASE "TestDB"; end if; end $$ I created a postgr...
template1=# create database db3 TEMPLATE template0 ENCODING 'SQL_ASCII' ; CREATE DATABASE template1=# create database db4 TEMPLATE template1 ENCODING 'SQL_ASCII' ; ERROR: new encoding (SQL_ASCII) is incompatible with the encoding of the template database (UTF8) HINT: Use the same encodin...
postgres=# drop database testdb;DROP DATABASE postgres=# 创建表 创建表之前要连接指定的数据库 \c test; CREATETABLEtable_name( column1 datatype, column2 datatype, column3 datatype, ... columnN datatype,PRIMARYKEY(oneormore columns ) ); 写法1: test=#createtablecompany(idintprimarykeynotnul...
1、创建用户角色 createuserXXXwithpassword'XXXXXX';--或者createrole XXXwithpassword'XXXXX'login; 注意:使用create role时,需要携带 login参数,否则将无法登录,如果忘记可使用命令修改: alterrole XXX login; 2、创建数据库: 1CREATEDATABASEyysg2WITHOWNER=yysg3ENCODING='UTF8'4TABLESPACE=pg_default5LC_COLLAT...
create database testdb; 1. 删除数据库 postgres=# drop database testdb; DROP DATABASE postgres=# 1. 2. 3. 4. 创建表 创建表之前要连接指定的数据库 \c test; CREATE TABLE table_name( column1 datatype, column2 datatype, column3 datatype, ...
既然我想放下几张桌子,有人建议了下面的话,我就做了:DROP SCHEMACREATE SCHEMApostgres=# create database test;postgres=# \c test You are now connected to databas 浏览2提问于2013-01-11得票数 39 回答已采纳 3回答 如何使用psql命令列出、创建、使用和检查数据库? 、 在postgreSQL中,是否可以简单地连接...
-a --data-only 只恢复数据,而不恢复表模式(数据定义)。 -c --clean 创建数据库对象前先清理(删除)它们。 -C --create 在恢复数据库之前先创建它。(如果出现了这个选项,和 -d 在一起的数据库名只是用于发出最初的CREATE DATABASE命令。 所有数据都恢复到名字出现在归档中的数据库中去。) ...
create user 用户名 password '密码'; #设置只读权限 alter user 用户名 set default_transaction_read_only = on; #设置可操作的数据库 grant all on database 数据库名 to 用户名; #授权可操作的模式和权限 -- 授权 grant select on all tables in schema public to 用户名; ...
* database, so create a per-database subdirectory if needed. * * XXX this is a fairly ugly violation of module layering, but this seems * to be the best place to put the check. Maybe TablespaceCreateDbspace * should be here and not in commands/tablespace.c? But that would imply ...
We do have a requirement to create a db_link(Database link) have to refer to the same database. When I am looking at the code in the function. It is some how like this. perform dblink_connect(cn,'loopback'::text); cn is the connection name; I verified if there are any foreign...