如何将数据库模式提取到 xml 内容？

Question

我需要将数据库模式提取为 xml 内容。

有没有开源工具或库可以进行模式提取操作？

是否有任何程序可用于将 DB 模式生成到 xml 内容？

例子：

create table sample(id numeric(5) primary key)

<Tables>
  <Table Name="sample" Type="Table">
    <Column Name="id" DataType="numeric" IsNullable="NO" IsIdentity="0" Constraint="PRIMARY KEY" />
  </Table>
</Tables>

对于答案中提到的以下查询，我需要做同样的事情 实现索引，程序....

Answer 1

SELECT TABLE_NAME AS '@Name', CASE WHEN TABLE_TYPE = 'BASE TABLE' THEN 'Table' ELSE 'View' END AS '@Type',
(
    SELECT Column_Name as '@Name',
            DATA_TYPE as '@DataType',
            case data_type 
                when 'nvarchar' 
                then CHARACTER_MAXIMUM_LENGTH 
                when 'varchar'  
                then CHARACTER_MAXIMUM_LENGTH
                else null 
            end  as '@Length',
            IS_NULLABLE AS '@IsNullable',
            COLUMNPROPERTY(OBJECT_ID(TABLE_NAME), COLUMN_NAME, 'IsIdentity') AS '@IsIdentity',

(SELECT tc.CONSTRAINT_TYPE FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE cu ON tc.CONSTRAINT_NAME = cu.CONSTRAINT_NAME
WHERE tc.TABLE_NAME = INFORMATION_SCHEMA.COLUMNS.TABLE_NAME AND cu.COLUMN_NAME = INFORMATION_SCHEMA.COLUMNS.Column_Name) AS '@Constraint'
FROM INFORMATION_SCHEMA.COLUMNS 
    where INFORMATION_SCHEMA.COLUMNS.TABLE_NAME = 
        INFORMATION_SCHEMA.TABLES.TABLE_NAME
    order by INFORMATION_SCHEMA.COLUMNS.ORDINAL_POSITION
    For XML PATH ('Column'), type
)
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA='dbo'
ORDER BY TABLE_NAME ASC  
For XML PATH ('Table'),Root('Tables')