传递 Oracle 参数类型 PLSQLAssociativeArray 时出现 VB.NET 错误

Posted 2023-03-28

【中文标题】传递 Oracle 参数类型 PLSQLAssociativeArray 时出现 VB.NET 错误

【英文标题】：VB.NET erroring when passing Oracle Parameter Type PLSQLAssociativeArray

【发布时间】：2012-01-03 17:53:53

【问题描述】：

我有一个如下所示的 oracle 存储过程：

PROCEDURE GET_PART_CHARACTERISTICS (v_catalog_nos_ IN CatalogNos, 
                                    Parts_Char_Cursor out sys_refcursor) AS
BEGIN
    OPEN Parts_Char_Cursor FOR
    SELECT catalog_no, characteristic_code, unit_meas, attr_value 
    FROM IFSAPP.SALES_PART_CHARACTERISTIC     
    WHERE CATALOG_NO IN (select * from table(v_catalog_nos_)); 
END GET_PART_CHARACTERISTICS;

然后通过 VB.NET 调用：

Dim cmd As New Oracle.DataAccess.Client.OracleCommand()
                    cmd.Connection = conn
                    cmd.CommandType = CommandType.StoredProcedure
                    cmd.CommandText = "dci_sales_group_part_api.get_part_characteristics"

                    Dim CatalogNosParam As New Oracle.DataAccess.Client.OracleParameter()
                    CatalogNosParam.ParameterName = "v_catalog_nos_"
                    CatalogNosParam.Direction = ParameterDirection.Input
                    CatalogNosParam.OracleDbType = Oracle.DataAccess.Client.OracleDbType.Varchar2
                    CatalogNosParam.Size = 100
                    Dim CatalogNoArr(0) As String
                    CatalogNoArr(0) = .Item("catalog_no")
                    CatalogNosParam.Value = CatalogNoArr
                    CatalogNosParam.CollectionType = Oracle.DataAccess.Client.OracleCollectionType.PLSQLAssociativeArray
                    cmd.Parameters.Add(CatalogNosParam)

                    Dim partscharParam As New Oracle.DataAccess.Client.OracleParameter()
                    partscharParam.ParameterName = "Parts_Char_Cursor"
                    partscharParam.Direction = ParameterDirection.Output
                    partscharParam.OracleDbType = Oracle.DataAccess.Client.OracleDbType.RefCursor
                    cmd.Parameters.Add(partscharParam)

                    Dim da As New Oracle.DataAccess.Client.OracleDataAdapter(cmd)

                    da.Fill(dsPartCharacteristics, "PartCharacteristics")

我收到一条错误消息：“ORA-06550：第 1 行，第 7 列： PLS-00306：调用“GET_PART_CHARACTERISTICS”时参数的数量或类型错误 ORA-06550：第 1 行，第 7 列： PL/SQL：语句被忽略"

CatalogNos 类型声明为：

`create or replace TYPE CATALOGNOS AS TABLE OF VARCHAR2(100);`

我不确定为什么这不起作用。

【参考方案1】：

不确定 DataAccess，但如果您在参数名称中省略冒号 (:)，OracleClient 不喜欢它。

例如：CatalogNosParam.ParameterName = ":v_catalog_nos_"