使用来自 0jdbc6 JDBCthin 驱动程序的自定义对象返回类型调用 Oracle PL/SQL 过程 [英] Calling an Oracle PL/SQL procedure with Custom Object return types from 0jdbc6 JDBCthin drivers

问题描述

我正在编写一些 JDBC 代码，它调用具有自定义对象返回类型的 Oracle 11g PL/SQL 过程.每当我尝试注册我的返回类型时，根据我设置的类型执行语句时，我都会收到 ORA-03115 或 PLS-00306 作为错误.示例如下:

I'm writing some JDBC code which calls a Oracle 11g PL/SQL procdedure which has a Custom Object return type. Whenever I try an register my return types, I get either ORA-03115 or PLS-00306 as an error when the statement is executed depending on the type I set. An example is below:

PLSQL 代码:

Procedure GetDataSummary (p_my_key    IN    KEYS.MY_KEY%TYPE,
                          p_recordset OUT   data_summary_tab,
                          p_status    OUT   VARCHAR2);

更多 PLSQL 代码(自定义对象详细信息):

More PLSQL Code (Custom Object Details):

CREATE OR REPLACE TYPE data_summary_obj
AS
   OBJECT (data_key             NUMBER,
           data_category        VARCHAR2 (100),
           sensitive_flag       VARCHAR2 (1),
           date_created         DATE,
           date_rep_received    DATE,
           date_first_offering  DATE,
           agency_data_ref      VARCHAR2 (13),
           change_code          VARCHAR2 (120),
           data_ref             VARCHAR2 (50),
           data_status          VARCHAR2 (100),
           data_count           NUMBER)
/

CREATE OR REPLACE TYPE data_summary_tab AS TABLE OF data_summary_obj
/ 

Java 代码:

String query = "begin manageroleviewdata.getdatasummary(?, ?, ?); end;");
CallableStatement stmt = conn.prepareCall(query);

stmt.setInt(1, 83);

stmt.registerOutParameter(2, OracleTypes.CURSOR); // Causes error: PLS-00306
stmt.registerOutParameter(3, OracleTypes.VARCHAR);

stmt.execute(stmt); // Error mentioned above thrown here.

谁能给我提供一个例子来展示我如何做到这一点?我想这是可能的.但是我看不到行集 OracleType.CURSOR、REF、DATALINK 等失败.

Can anyone provide me with an example showing how I can do this? I guess it's possible. However I can't see a rowset OracleType. CURSOR, REF, DATALINK, and more fail.

抱歉，这是一个愚蠢的问题.我不是 PL/SQL 专家，可能在我的问题的某些领域使用了错误的术语.(如果是这样，请编辑我).

Apologies if this is a dumb question. I'm not a PL/SQL expert and may have used the wrong terminology in some areas of my question. (If so, please edit me).

提前致谢.

注册，安德鲁

推荐答案

我终于(在别人的帮助下)找到了这个问题的答案.它分为三个部分:

I finally (with a little help from others) found out the answer to this. It came in three parts:

首先是我需要使用一个:

The first was that I needed to use an:

OracleCallableStatement stmt = (OracleCallableStatement) conn.prepareCall(query);

而不是我一直在尝试使用的简单 JDBC CallableStatement.

rather than the simple JDBC CallableStatement I had been trying to use.

第二部分是我必须按如下方式注册我的out"参数:

The second part was that I had to register my "out" parameter as follows:

stmt.registerOutParameter(2, OracleTypes.STRUCT, "DATA_SUMMARY_TAB");

第三部分，它在上面的第二部分中是隐含的，是DATA_SUMMARY_TAB"必须是大写的.如果你把它写成小写，那么你会得到一个神秘的错误信息，如下所示:

The third part, and it is implicit in part 2 above, was that "DATA_SUMMARY_TAB" had to be in UPPER CASE. If you put it in lower case, then you get a cryptic error message as follows:

java.sql.SQLException: invalid name pattern: MYTEST.data_summary_tab

在 oracle.jdbc.oracore.OracleTypeADT.initMetadata(OracleTypeADT.java:553)在 oracle.jdbc.oracore.OracleTypeADT.init(OracleTypeADT.java:469)在 oracle.sql.StructDescriptor.initPickler(StructDescriptor.java:390)在 oracle.sql.StructDescriptor.(StructDescriptor.java:320)

at oracle.jdbc.oracore.OracleTypeADT.initMetadata(OracleTypeADT.java:553) at oracle.jdbc.oracore.OracleTypeADT.init(OracleTypeADT.java:469) at oracle.sql.StructDescriptor.initPickler(StructDescriptor.java:390) at oracle.sql.StructDescriptor.(StructDescriptor.java:320)

就是这样.

另外，请注意我们的自定义对象类型不在任何包中.如果是，您可能需要稍微修改第三个参数.

Also, please note our custom object type was not in any packages. If it is, you might need to hack the third parameter around a little.

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