Informatica 中日期数据类型的问题

Question

我创建了一个可重用的转换，其中我有一个日期/时间格式的输入端口。

现在，当我在我的 java 代码中使用这个日期/时间端口时，它给了我不兼容的 long/date 错误。

于是我把java转换的输入端口改为String，在java转换中使用了这个字符串变量。但即使是这段代码也给了我一个错误。

Severity    Timestamp   Node    Thread  Message Code    Message
INFO    26-04-2016 16:55:30 node01_Gizmo    READER_1_1_1    RR_4049 RR_4049 SQL Query issued to database : (Tue Apr 26 16:55:30 2016)
INFO    26-04-2016 16:55:30 node01_Gizmo    READER_1_1_1    RR_4050 RR_4050 First row returned from database to reader : (Tue Apr 26 16:55:30 2016)
INFO    26-04-2016 16:55:30 node01_Gizmo    READER_1_1_1    BLKR_16019  Read [10] rows, read [0] error rows for source table [CUSTOMERS] instance name [CUSTOMERS]
INFO    26-04-2016 16:55:30 node01_Gizmo    READER_1_1_1    BLKR_16008  Reader run completed.
INFO    26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    JAVA PLUGIN_1762    [DEBUG] Unparseable using java.text.SimpleDateFormat@9586200
ERROR   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    JTX_1005    [ERROR] Column name [05/06/1998 00:00:00.000000] is invalid.
INFO    26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    JTX_1015    [DEBUG] Exception thrown from Java transformation: [Column name [05/06/1998 00:00:00.000000] is invalid.].
ERROR   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    JAVA PLUGIN_1762    [ERROR] Column name [05/06/1998 00:00:00.000000] is invalid.
ERROR   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    JAVA PLUGIN_1762    [ERROR]     at com.informatica.powercenter.server.jtx.JTXPartitionDriverImplFixed.isNull(JTXPartitionDriverImplFixed.java:737)
ERROR   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    JAVA PLUGIN_1762    [ERROR]     at com.informatica.powercenter.server.jtx.JTXPartitionDriverImplGen.execute(JTXPartitionDriverImplGen.java:223)
ERROR   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    TM_6085 A fatal error occurred at  transformation [DateFormat], and the session is terminating. 
ERROR   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    TM_6085 A fatal error occurred at  transformation [SQ_CUSTOMERS], and the session is terminating. 
ERROR   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    TM_6085 A fatal error occurred at  transformation [SQ_CUSTOMERS], and the session is terminating. 
ERROR   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    TM_6085 A fatal error occurred at  transformation [SQ_CUSTOMERS], and the session is terminating. 
DEBUG   26-04-2016 16:55:30 node01_Gizmo    TRANSF_1_1_1    DBG_21511   TE: Fatal Transformation Error.
INFO    26-04-2016 16:55:30 node01_Gizmo    WRITER_1_*_1    WRT_8167    Start loading table [DateFormat] at: Tue Apr 26 16:55:30 2016
INFO    26-04-2016 16:55:30 node01_Gizmo    WRITER_1_*_1    WRT_8333    Rolling back all the targets due to fatal session error.
ERROR   26-04-2016 16:55:30 node01_Gizmo    WRITER_1_*_1    WRT_8170    Writer run terminated: Abort Session request received from the DTM
INFO    26-04-2016 16:55:30 node01_Gizmo    WRITER_1_*_1    WRT_8168    End loading table [DateFormat] at: Tue Apr 26 16:55:30 2016
INFO    26-04-2016 16:55:30 node01_Gizmo    WRITER_1_*_1    WRT_8035    Load complete time: Tue Apr 26 16:55:30 2016

LOAD SUMMARY
============

WRT_8036 Target: DateFormat (Instance Name: [DateFormat1])
WRT_8044 No data loaded for this target



INFO    26-04-2016 16:55:30 node01_Gizmo    WRITER_1_*_1    WRT_8043    *****END LOAD SESSION*****

Day 是 String 类型的输出端口。下面是java转换中用到的代码：

SimpleDateFormat formatter;
formatter = new SimpleDateFormat("dd-MM-yyyy");
Date my_date = null;
try{
    my_date = formatter.parse(Inp_Date);
}
catch(Exception e) { 
          System.out.println("Unparseable using " + formatter); 
      }
    formatter = new SimpleDateFormat("d");
    Day=formatter.format(my_date);

请告诉我如何在 java 转换中使用日期/时间变量。

问候， 敏捷。

Answer 1

您应该使用带有表达式TO_CHAR(inp_Date,'dd') 的表达式转换来进行此类转换。

在您的 Java 代码中，格式字符串 (dd-MM-yyyy) 与输入日期格式 (05/06/1998 00:00:00.000000) 不匹配。应该改成这样：

formatter = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss.SSSSSS");