1CREATE TABLE persons (
2	id int NOT NULL primary key,
3	name varchar(255) NOT NULL
4) 
5unique hash on (id) pages=100;
6
7CREATE TABLE institutes (
8	id int NOT NULL primary key,
9	name varchar(255)
10)
11unique hash on (id) pages=100;
12
13CREATE TABLE documents (
14	id int NOT NULL primary key,
15	title varchar(255) NOT NULL,
16	abstract varchar(255)
17)
18unique hash on (id) pages=100;
19
20CREATE TABLE authors_docs (
21	pers_id int NOT NULL,
22	doc_id int NOT NULL,
23	PRIMARY KEY  
24	(
25		pers_id,
26		doc_id
27	)
28) unique hash on (pers_id, doc_id) pages=100;
29
30CREATE TABLE phones (
31	id int NOT NULL primary key,
32	phone varchar(255) NOT NULL ,
33	pers_id int NOT NULL 
34)
35unique hash on (id) pages=100;
36
37