ORACLE查询表备注、表字段

--查询表结构
SELECT T.TABLE_TYPE, T.TABLE_NAME, T.COMMENTS FROM USER_TAB_COMMENTS T WHERE TABLE_TYPE = 'TABLE' ORDER BY TABLE_NAME ASC;

--查询表字段
SELECT T.TABLE_NAME TABLE_NAME,
COLUMN_ID COLUMN_ID,
T.COLUMN_NAME COLUMN_NAME,
COLDESC.COMMENTS COMMENTS,
T.DATA_TYPE DATA_TYPE,
T.DATA_LENGTH DATA_LENGTH,
T.NULLABLE NULLABLE,
T.DATA_DEFAULT DATA_DEFAULT
FROM USER_TAB_COLUMNS T, USER_COL_COMMENTS COLDESC
WHERE T.COLUMN_NAME(+) = COLDESC.COLUMN_NAME
AND T.TABLE_NAME = 'PQ_ITEM'
AND COLDESC.TABLE_NAME = 'PQ_ITEM'
ORDER BY COLUMN_ID ASC