综合查询语句

SELECT 
'SCGL' AS SYSTEM_TYPE,  -- 系统别
T1.TABLE_NAME,          -- 表名
T2.TABLE_TYPE,          -- 表类型
T2.COMMENTS,            -- 表中文名
C1.COLUMN_NAME,         -- 字段名
C1.COMMENTS AS COLUMN_CH-- 字段中文名
FROM USER_TABLES T1
LEFT JOIN USER_TAB_COMMENTS T2 ON T1.TABLE_NAME = T2.TABLE_NAME
LEFT JOIN USER_COL_COMMENTS C1 ON T1.TABLE_NAME = C1.TABLE_NAME
ORDER BY T1.TABLE_NAME