Имя   First_level Second_level

aaa	0	1
bbb	0	2
ccc	0	3
ddd	0	4
eee	0	5
fff	1	6
ggg	1	7
hhh	1	8
qqq	2	9
www	2	10
rrr	3	11
ttt	4	12
ооо	7	13

CREATE TABLE "EASYBASE"."TREE" ("COL_NAME" VARCHAR(50) NOT NULL, "FIRST_LEVEL" INTEGER NOT NULL, "SECOND_LEVEL" INTEGER NOT NULL) ;
INSERT INTO TREE  VALUES ( 'aaa',  0, 1);
INSERT INTO TREE  VALUES ( 'bbb',  0, 2);
INSERT INTO TREE  VALUES ( 'ccc',  0, 3);
INSERT INTO TREE  VALUES ( 'ddd',  0, 4);
INSERT INTO TREE  VALUES ( 'eee',  0, 5);
INSERT INTO TREE  VALUES ( 'fff',  1, 6);
INSERT INTO TREE  VALUES ( 'ggg',  1, 7);
INSERT INTO TREE  VALUES ( 'hhh',  1, 8);
INSERT INTO TREE  VALUES ( 'qqq',  2, 9);
INSERT INTO TREE  VALUES ( 'www',  2, 10);
INSERT INTO TREE  VALUES ( 'rrr',  3, 11);
INSERT INTO TREE  VALUES ( 'ttt',  4, 12);
INSERT INTO TREE  VALUES ( 'ooo',  7, 13);