Question

有一个Pentaho步骤，我被卡住了。这是我的Pentaho步骤中的SQL查询：

select t.val_1  as Contract, 
       t.val_2  as Service,
       t.val_3  as Calender,
       t.val_4  as MSPProvider,
       t.val_5  as MSPCustomer,
       t.val_6  as ObjectName,
       t.val_7  as EventID,
         to_timestamp(t.val_8,'MM-DD-YYYY HH:MI:SS PM')  as Startdate,
         to_timestamp(t.val_9,'MM-DD-YYYY HH:MI:SS PM') as Startkeydate,
         to_timestamp(t.val_10,'MM-DD-YYYY HH:MI:SS PM') as Enddate,
        to_timestamp(t.val_11,'MM-DD-YYYY HH:MI:SS PM') as Endkeydate,
       t.val_12 as Duration,
       t.val_13 as DurationMod,
       t.val_14 as Suspend,
       t.val_15 as SuspendExternal,
       t.val_16 as Excluded,
       t.val_17 as Target,
       t.val_18 as TargetUnit,
       t.val_19 as Relation,
       t.val_20 as Violated,
       t.val_21 as CalculationType,
       t.val_22 as calculationversion,
       t.val_23 as Category,
       'sec' as ValueUnit,
       t.val_24 as TicketUnit,
       t.val_25 as Severity,
       t.val_26 as Impact,
       t.val_27 as ExclusionID,
       t.val_28 as OriginatorID,
      t.val_25 as SeverityID,
       t.val_29 as ReOpened,
       t.create_date as CreateDate,
       t.modify_date as ModifyDate

from t_slalom_outputs t 

where t.is_active = 1
      and t.table_name = 'TICKET'
    and t.val_4 = '${MSP_PROVIDER}'

      and t.modify_date > (SELECT sp_timestamp FROM public.msp_startingpoints where sp_name = 'etl_export_result_slalom')

modify_date >之后的查询是从Postgres数据库中选择数据，其余查询是从Oracle服务器获取数据。我应该如何区分这两个？

一个是从Oracle中的表t_slalom_outputs和Postgres表msp_startingpoints中的其他表中获取数据。修改后的date >（Postgres查询）

有什么方法可以将Postgres查询作为参数值传递给整个查询？

Answer 1

使用输入表从Postges数据库中获取msp_startingpoints。然后将结果放在Input table的查询中，除了t.modify_date > (SELECT ...)已被t.modify_date > ?替换，指定Insert data from step为第一步。

那就是它。

魔术来自于问号被来自传入步骤的值替换的事实。在您的情况下，您有一列和一行，但您可能有更多列（请注意列的顺序）和多行（请注意结果中行的顺序）。

在Pentaho中将SQL查询作为参数传递？

1 个答案: