1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
| CREATE TABLE TEST_GREG (
ID_TEST NUMBER,
CHAMP1 VARCHAR2(50),
CHAMP2 VARCHAR2(50),
CHAMP3 VARCHAR2(50),
CHAMP4 VARCHAR2(50)
);
INSERT INTO TEST_GREG
VALUES (1,'A','A','A','A');
INSERT INTO TEST_GREG
VALUES (2,'A','A','A','B');
INSERT INTO TEST_GREG
VALUES (3,'A','A','B','B');
INSERT INTO TEST_GREG
VALUES (4,'A','B','B','B');
INSERT INTO TEST_GREG
VALUES (5,'A','B','B','B');
COMMIT;
CREATE INDEX INDX_TEST_GREG_01 ON TEST_GREG(UPPER(champ1));
select column_name, num_distinct, hidden_column, virtual_column
from all_tab_cols
where table_name='TEST_GREG'; |
Partager