USER_TAB_COLS使用

SELECT USER_TAB_COLS.TABLE_NAME AS 表名,
USER_TAB_COLS.COLUMN_NAME AS 列名,
USER_TAB_COLS.DATA_TYPE AS 数据类型,
USER_TAB_COLS.DATA_LENGTH AS 长度,
USER_TAB_COLS.NULLABLE AS 是否为空,
USER_TAB_COLS.COLUMN_ID AS 列序号,
USER_COL_COMMENTS.COMMENTS AS 备注
FROM USER_TAB_COLS
INNER JOIN USER_COL_COMMENTS
ON USER_COL_COMMENTS.TABLE_NAME = USER_TAB_COLS.TABLE_NAME
AND USER_COL_COMMENTS.COLUMN_NAME = USER_TAB_COLS.COLUMN_NAME;

USER_TAB_COLS使用

原文：https://www.cnblogs.com/aqcc/p/12213407.html