标签：NAME COLUMN name SQL Oracle table DATA TABLE 字典
SELECT
A.TABLE_NAME AS "表名",
A.COLUMN_NAME AS "字段名",
DECODE(
A.CHAR_LENGTH,
0,
DECODE(
A.DATA_SCALE,
NULL,
A.DATA_TYPE,
A.DATA_TYPE || '(' || A.DATA_PRECISION || ',' || A.DATA_SCALE || ')'
),
A.DATA_TYPE || '(' || A.CHAR_LENGTH || ')'
) AS "字段类型",
A.DATA_DEFAULT AS "默认值",
A.NULLABLE AS "能否为空",
B.comments AS "备注"
FROM
sys.user_tab_columns A,
sys.user_col_comments B
WHERE
A.table_name = B.table_name
AND A.COLUMN_NAME = B.COLUMN_NAME
AND A.TABLE_NAME IN ( 'table_name')
ORDER BY
A.TABLE_NAME
标签：NAME,
COLUMN,
name,
SQL,
Oracle,
table,
DATA,
TABLE,
字典
From： https://www.cnblogs.com/codechange/p/17442992.html