解決OracleXmlSqlException,OracleXmlStore類

如果是資料庫移植後出現此錯誤，可以只執行loadjava命令就可以

1.Make sure you've already loaded the Oracle XML Parser for Java into Oracle8i. The XML SQL Utility depends on it.

 
2.Download the latest release of the Oracle XML SQL Utility from http://technet.oracle.com/tech/xml: •If your database is Oracle8i Release 2 (8.1.6) or later, download the XSU12.tar.gz or XSU12.zip 
•If your database is Oracle8i Release 1 (8.1.5), download the XSU111.tar.gz or XSU111.zip
（安裝Oracle的客戶端後這2個jar都有）

 
3.Extract the .zip or the .tar.gz file into a convenient directory.
 
4.Change directory to the ./lib subdirectory of the distribution.
 

5.Load the xsu12.jar file (or xsu111.jar for 8.1.5) into your schema:

命令列執行： loadjava -verbose -resolve -user xmlbook/xmlbook xsu12.jar

（安裝Oracle的客戶端後這2個jar都有）

6.Run the SQL script to create the XML SQL Utility PL/SQL package: sqlplus xmlbook/xmlbook @xmlgenpkg.sql

@xmlgenpkg.sql在伺服器上Oracle的目錄下有，執行後會在使用者下建立一個xmlgen的包。

測試程式碼（網上找的）：

使用Oracle的xmlgen.getXML包生成SQL語句的結果集為XML格式，使用的是java類的方式。可以在儲存過程中使用。

CREATE OR REPLACE FUNCTION submissionXML( id NUMBER ) RETURN CLOB IS
  query VARCHAR2(100);
BEGIN
  query := 'SELECT * FROM accepted_submission WHERE id = '||id;

  RETURN xmlgen.getXML(query);

END;

select xmlgen.getXML('select * from scott.emp',1) from dual;

解決OracleXmlSqlException,OracleXmlStore類

XML SQL Utility (XSU)

參考：

https://community.toadworld.com/platforms/oracle/w/wiki/6015.producing-xml-query-results