Oracle ODP.NET使用参数调用包过程时出现问题

时间:2013-02-14 20:40:26

标签: .net oracle oracle10g odp.net oracle9i

问题: 尝试调用打包的存储过程,但调用失败取决于参数的值。

ORA-06502: PL/SQL: numeric or value error
ORA-06512: at line 1

程序定义:

procedure DUP_EXACT (
    SSN in VARCHAR2, 
    LASTNAME in VARCHAR2, 
    FIRSTNAME in VARCHAR2, 
    MASTERRECORD IN VARCHAR2 DEFAULT NULL,
    C_Table out sp_cursor)

参数创建:

    For Each SearchParameter In SearchParameters
        ValueParameter = New OracleParameter

        ValueParameter.Direction = ParameterDirection.Input
        ValueParameter.OracleDbType = OracleDbType.Varchar2
        ValueParameter.ParameterName = SearchParameter.ParameterFieldName

        If Not SearchParameter.TransformedFieldValue = Nothing Then
            ValueParameter.Value = SearchParameter.TransformedFieldValue
        Else
            ValueParameter.Value = String.Empty
        End If

        ExactMatchSearchParameters.Add(ValueParameter)
    Next

    Dim MasterRecordParameter As New OracleParameter()

    MasterRecordParameter.Direction = ParameterDirection.Input
    MasterRecordParameter.OracleDbType = OracleDbType.Varchar2
    MasterRecordParameter.ParameterName = "MASTERRECORD"
    MasterRecordParameter.Value = DBNull.Value

    ExactMatchSearchParameters.Add(MasterRecordParameter)

    Dim TableParameter As New OracleParameter

    TableParameter.ParameterName = "C_Table"
    TableParameter.OracleDbType = OracleDbType.RefCursor
    TableParameter.Direction = ParameterDirection.Output

    ExactMatchSearchParameters.Add(TableParameter)

执行:

Using Command As OracleCommand = 
        New OracleCommand(
            QualifiedProcedureName, 
            Me.Database.Connection)

    Command.CommandType = CommandType.StoredProcedure
    'Command.AddToStatementCache = False '

    For Each Parameter In Parameters
        Command.Parameters.Add(Parameter)
    Next

    Command.Connection.Open()

    'Command.Connection.FlushCache() '

    Using Reader As OracleDataReader = Command.ExecuteReader()

成功案例&故障:

*** SUCCESS ***
[SSN]: "6#######0"
[LASTNAME]: "W_____x"
[FIRSTNAME]: "D______e"
[MASTERRECORD]: ""
[C_Table]: ""

*** FAILURE ***
[SSN]: "2#######_1"
[LASTNAME]: "C____n"
[FIRSTNAME]: "L___e"
[MASTERRECORD]: ""
[C_Table]: ""

*** FAILURE ***
[SSN]: "5#######5"
[LASTNAME]: "C_______s"
[FIRSTNAME]: "R_____o"
[MASTERRECORD]: ""
[C_Table]: ""

*** SUCCESS ***
[SSN]: "6#######0"
[LASTNAME]: "P___a"
[FIRSTNAME]: "N______r"
[MASTERRECORD]: ""
[C_Table]: ""

其他测试:

我尝试运行跟踪以查看ODP.NET实际上在参数中发送到数据库的内容,但是tracefiles没有提供任何有意义的信息(IE:实际参数值)

TIME:2013/02/14-14:10:19:678 
TID:231c  
OpsSqlPrepare2(): 
SQL: Begin PACKAGE.DUP_EXACT(:v0, :v1, :v2, :v3, :v4); End;

示例参数值:

?Command.Parameters(0)
{SSN}
    ArrayBindSize: Nothing
    ArrayBindStatus: Nothing
    CollectionType: None {0}
    DbType: String {16}
    Direction: Input {1}
    InvalidPrecision: 100
    InvalidScale: 129
    InvalidSize: -1
    IsNullable: False
    m_bOracleDbTypeExSet: False
    m_bReturnDateTimeOffset: False
    m_collRef: {Oracle.DataAccess.Client.OracleParameterCollection}
    m_commandText: ""
    m_direction: Input {1}
    m_disposed: False
    m_enumType: ORADBTYPE {4}
    m_modified: False
    m_oraDbType: Varchar2 {126}
    m_paramName: "SSN"
    m_paramPosOrName: ""
    m_saveValue: Nothing
    MaxScale: 127
    MinScale: -84
    Offset: 0
    OracleDbType: Varchar2 {126}
    OracleDbTypeEx: Varchar2 {126}
    ParameterEnumType: ORADBTYPE {4}
    ParameterName: "SSN"
    Precision: 0
    Scale: 0
    Size: 0
    SourceColumn: ""
    SourceColumnNullMapping: False
    SourceVersion: Current {512}
    Status: Success {0}
    UdtTypeName: ""
    Value: "4#######0" {String}

2 个答案:

答案 0 :(得分:2)

答案是Oracle 9.2.0.6.0中存在导致间歇性VARCHAR2绑定错误的错误。真棒。

This forum post finally gave me the answer:

  

此行为是一致的还是间歇性的?如果间歇,和   你的db是9206,你可能遇到以下rdbms错误:

     

Bug.4015165(74)REGRN SCALAR VARCHAR2在不同尺寸的箱子中   ORA-06502随机失败

     

应该通过修补数据库来解决。

     

我不知道为什么,但是ODP似乎比这更容易遇到这个错误   其他司机。

     

如果不是间歇性的,或者您使用的是当前的补丁级别   数据库,一个完整的测试用例可能是最好的。

     

干杯,   格雷格

快速检查确认我们所使用的版本受到影响:

select * from v$version;
----------------------------------------------------------------
Oracle9i Enterprise Edition Release 9.2.0.6.0 - Production       
PL/SQL Release 9.2.0.6.0 - Production                            
CORE    9.2.0.6.0   Production                                          
TNS for 32-bit Windows: Version 9.2.0.6.0 - Production           
NLSRTL Version 9.2.0.6.0 - Production 

幸运的是我们的生产服务器是10g,所以我们最终将我们的开发服务器更新为10g,并且中提琴不再有问题。

回答路径:

Parameter issue with Oracle RefCursor

Oracle ODP.NET Forum

ODP.NET Forum Thread "Error ORA-06502 PL/SQL"

答案 1 :(得分:1)

听起来可能很奇怪,但要确保oracle参数在查询中显示时添加。我过去曾经遇到过这个问题几次(通常是迁移到ODP.NET)