To create table in PostgreSQL “CREATE TABLE” command is used :

SYNTAX:

CREATE TABLE table_name(
   column1 datatype,
   column2 datatype,
   .....
   columnN datatype,
   PRIMARY KEY( one or more columns )
);

Create table command creates tables in public schema by default 

EX : Create two tables (student & mentor)

create table student
(id integer primary key,
name character varying(25) ,
age integer ,
gender character(1)
);

CREATE table mentor 
(
m_id integer , 
name character varying(25) , 
subject character varying(25), 
primary key(m_id) 
);