Sql 从oracle表生成XML文件格式_Sql_Xml_Oracle

Sql 从oracle表生成XML文件格式

sql xml oracle

Sql 从oracle表生成XML文件格式,sql,xml,oracle,Sql,Xml,Oracle,我想要如下所示的XML文件格式 XML应该如下所示：- <server name="Server123"> <schema name="cwmm"> <table name="ACC" rows="1000000"/> <table name="KEYS" rows="1000000"/> </schema> <schema name="CWM1610"> <table name="ACC" rows="1000000

我想要如下所示的XML文件格式

XML应该如下所示：-

<server name="Server123">
<schema name="cwmm">
<table name="ACC" rows="1000000"/>
<table name="KEYS" rows="1000000"/>
</schema>
<schema name="CWM1610">
<table name="ACC" rows="1000000"/>
<table name="KEYS" rows="1000000"/>
</schema>

谢谢你的帮助。

Oracle 11g R2架构设置：

CREATE TABLE TAB_INFO (owner, table_name, num_rows ) AS
SELECT 'cwmm',    'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'cwmm',    'KEYS', 1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'KEYS', 1000000 FROM DUAL;

SELECT XMLElement(
         "server",
         XMLAttributes( 'Server123' AS "name" ),
         XMLAGG( schema )
       ).getClobVal() AS xml
FROM   (
  SELECT XMLElement(
           "schema",
           XMLAttributes( owner AS "name" ),
           XMLAgg(
             XMLElement(
               "table",
               XMLAttributes(
                 table_name AS "name",
                 num_rows AS "rows"
               )
             )
           )
         ) AS schema
  FROM   tab_info
  GROUP BY owner
)

|                                                                                                                                                                                                                                                                   XML |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <server name="Server123"><schema name="CWM1610"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema><schema name="cwmm"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema></server> |

查询1：

CREATE TABLE TAB_INFO (owner, table_name, num_rows ) AS
SELECT 'cwmm',    'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'cwmm',    'KEYS', 1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'KEYS', 1000000 FROM DUAL;

SELECT XMLElement(
         "server",
         XMLAttributes( 'Server123' AS "name" ),
         XMLAGG( schema )
       ).getClobVal() AS xml
FROM   (
  SELECT XMLElement(
           "schema",
           XMLAttributes( owner AS "name" ),
           XMLAgg(
             XMLElement(
               "table",
               XMLAttributes(
                 table_name AS "name",
                 num_rows AS "rows"
               )
             )
           )
         ) AS schema
  FROM   tab_info
  GROUP BY owner
)

|                                                                                                                                                                                                                                                                   XML |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <server name="Server123"><schema name="CWM1610"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema><schema name="cwmm"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema></server> |

：

CREATE TABLE TAB_INFO (owner, table_name, num_rows ) AS
SELECT 'cwmm',    'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'cwmm',    'KEYS', 1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'KEYS', 1000000 FROM DUAL;

SELECT XMLElement(
         "server",
         XMLAttributes( 'Server123' AS "name" ),
         XMLAGG( schema )
       ).getClobVal() AS xml
FROM   (
  SELECT XMLElement(
           "schema",
           XMLAttributes( owner AS "name" ),
           XMLAgg(
             XMLElement(
               "table",
               XMLAttributes(
                 table_name AS "name",
                 num_rows AS "rows"
               )
             )
           )
         ) AS schema
  FROM   tab_info
  GROUP BY owner
)

|                                                                                                                                                                                                                                                                   XML |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <server name="Server123"><schema name="CWM1610"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema><schema name="cwmm"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema></server> |

| XML|
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|  |

Oracle 11g R2架构设置：

CREATE TABLE TAB_INFO (owner, table_name, num_rows ) AS
SELECT 'cwmm',    'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'cwmm',    'KEYS', 1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'KEYS', 1000000 FROM DUAL;

SELECT XMLElement(
         "server",
         XMLAttributes( 'Server123' AS "name" ),
         XMLAGG( schema )
       ).getClobVal() AS xml
FROM   (
  SELECT XMLElement(
           "schema",
           XMLAttributes( owner AS "name" ),
           XMLAgg(
             XMLElement(
               "table",
               XMLAttributes(
                 table_name AS "name",
                 num_rows AS "rows"
               )
             )
           )
         ) AS schema
  FROM   tab_info
  GROUP BY owner
)

|                                                                                                                                                                                                                                                                   XML |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <server name="Server123"><schema name="CWM1610"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema><schema name="cwmm"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema></server> |

查询1：

CREATE TABLE TAB_INFO (owner, table_name, num_rows ) AS
SELECT 'cwmm',    'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'cwmm',    'KEYS', 1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'KEYS', 1000000 FROM DUAL;

SELECT XMLElement(
         "server",
         XMLAttributes( 'Server123' AS "name" ),
         XMLAGG( schema )
       ).getClobVal() AS xml
FROM   (
  SELECT XMLElement(
           "schema",
           XMLAttributes( owner AS "name" ),
           XMLAgg(
             XMLElement(
               "table",
               XMLAttributes(
                 table_name AS "name",
                 num_rows AS "rows"
               )
             )
           )
         ) AS schema
  FROM   tab_info
  GROUP BY owner
)

|                                                                                                                                                                                                                                                                   XML |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <server name="Server123"><schema name="CWM1610"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema><schema name="cwmm"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema></server> |

：

CREATE TABLE TAB_INFO (owner, table_name, num_rows ) AS
SELECT 'cwmm',    'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'cwmm',    'KEYS', 1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'ACC',  1000000 FROM DUAL UNION ALL
SELECT 'CWM1610', 'KEYS', 1000000 FROM DUAL;

SELECT XMLElement(
         "server",
         XMLAttributes( 'Server123' AS "name" ),
         XMLAGG( schema )
       ).getClobVal() AS xml
FROM   (
  SELECT XMLElement(
           "schema",
           XMLAttributes( owner AS "name" ),
           XMLAgg(
             XMLElement(
               "table",
               XMLAttributes(
                 table_name AS "name",
                 num_rows AS "rows"
               )
             )
           )
         ) AS schema
  FROM   tab_info
  GROUP BY owner
)

|                                                                                                                                                                                                                                                                   XML |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <server name="Server123"><schema name="CWM1610"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema><schema name="cwmm"><table name="ACC" rows="1000000"></table><table name="KEYS" rows="1000000"></table></schema></server> |

| XML|
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|  |

“我很想使用dbms\u xmlgen软件包，但我不知道如何实现上述目标。”因此，请阅读文档，尝试一些方法，如果不起作用，请发布一个具体问题。请。告诉我们您尝试过什么？我建议使用另一种编程语言将查询结果转换为xml。@DanBracuk为什么要在Oracle可以轻松完成转换的情况下使用另一种语言？“我本来想使用包dbms_xmlgen，但我不知道如何实现上述目标。”因此，请阅读文档，尝试一些方法，如果它不起作用，发布一个具体的问题。告诉我们您尝试了什么？我建议使用另一种编程语言将查询结果转换为xml。@DanBracuk为什么要使用另一种语言，而Oracle可以轻松地进行转换？