Sql in intellij

Hello,

I work on a sql file in intellij and in this .sql file i create many table like this :

CREATE TABLE chercheur (
numc INTEGER,
nom VARCHAR (20) NOT NULL ,
prenom VARCHAR (20) NOT NULL,
equipe VARCHAR (20) NOT NULL,
CONSTRAINT pk_chercheur PRIMARY KEY (numc)
);

I add tupple :

INSERT INTO chercheur VALUES (3, 'Duvivier', 'Anne', 'BD');
INSERT INTO chercheur VALUES (4, 'Rifflet', 'Jean-Francois', 'Systeme');

And i do request : 

SELECT DISTINCT nomorg
FROM chercheur c JOIN mission m ON c.numc = m.numc
                JOIN visite v on m.numis = v.numis
WHERE nom = 'Roitelet' AND prenom = 'Martine';

How can I see graphically these requests, creation table, ...  like iSQL for example (when I try to run this .sql intellij talk me about dataBase but i don't understand.)