SELECT ROWNUM 序号,
c.table_name as "表名",
A.COLUMN_NAME AS "字段名称",
ments AS "字段描述",
A.DATA_TYPE as 字段类型,
REPLACE(DECODE(A.CHAR_LENGTH,
0,
DECODE(A.DATA_SCALE,
NULL,
A.DATA_TYPE,
A.DATA_PRECISION || ',' || A.DATA_SCALE),
A.CHAR_LENGTH),
',0',
'') 字段长度,
REPLACE(REPLACE(A.NULLABLE, 'Y', '√'), 'N', '') AS "能否为空",
A.DATA_DEFAULT AS "默认值"
FROM sys.all_tab_columns A, sys.DBA_COL_COMMENTS B,user_tables C
WHERE A.owner = B.owner
AND A.table_name = B.table_name
AND A.COLUMN_NAME = B.COLUMN_NAME
AND A.owner = 'US_APP'
AND b.TABLE_NAME = c.table_name
ORDER BY A.TABLE_NAME
oracle 导出数据字典
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