AliCloudDB for PostgreSQL #operf --system-wide --lazy-conversion postgres=# insert into test select generate_series (19999000000,19999100000); INSERT 0 100001 Time: 564.876 ms # ctrl + c退出operf #opreport -l -f -g -w -x -t 1 /home/digoal/tmp_basedir_for_pgsql_bld/bin/postgres Usin...
路径: E:\database\company.sql 找到postgres的bin目录 打开cmd 定位到对应目录 C:\Windows\system32>cd/d D:\Program data\PostgreSQL\12\bin 输入sql命令 D:\Programdata\PostgreSQL\12\bin>psql -h 127.0.0.1 -p 5433 -d runoobdb -Upostgres -fE:\database\company.sql -h ip地址 -p 端口号 -d ...
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, ... columnN datatype, PRIMARY KEY( one or mo...
Add-Type -AssemblyName [System.Web.Security.Membership]::GeneratePassword() /How to call a function in another PowerShell script #TYPE System.Data.DataRow Is 1st line of SSMS To CSV %username% variable in Powershell + CategoryInfo : NotSpecified: (:String) [], RemoteException <' operator i...
SET @stringData = @stringData + ”””’+ isnull(‘ + @colName + ‘,””)+”””,”+’ END ELSE IF @dataType IN ( ‘text’, ‘ntext’ ) –if the datatype –is text or something else BEGIN SET @stringData = @stringData + ”””’+ isnull...
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datatype[] - e.g. varchar(50)[] (defines an array of a type) bit boolean bytea character varying(length) - varchar(length) character(length) - char(length) date enum 1 double precision - float4 float8 integer - int4 bigint - int8 ADMIN EXAMPLES numeric(length,precision) oid serial...
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