Teradata 时间戳值调整

Question

有人可以帮我实现以下 2 个我目前卡住的要求吗：

仅当作业的状态为 'IN PROGRESS' 且大于 SLA_TMLINE 时，我才需要帮助在几分钟内计算和填充字段 'DURATION_CROSSED_AFTER_SLA'。如果 SLA_TMLINE 是 'NA' 那么字段也将是 'NA'。 SLA_TMLINE 值仅以时间 (EST) 给出，计算时会自动假设当天，例如：对于 JOB_ID 1373，SLA_TMLINE 给出为 - 06:00 AM，意思是 '8/22/2020 06:00:00'.
此外，如果作业的状态是 'IN PROGRESS'，并且如果当前时间戳 (0) > SLA_TMLINE 当天 + '1' 小时，那么我们需要显示状态 (B.STATUS) 作为 'LONG RUNNING'，而不是 'IN PROGRESS'.

基本上我们的工作状态如下：

WAITING
IN PROGRESS
LONG RUNNING
COMPLETE
FAILED

从以上5个工作状态中，'LONG RUNNING'状态在table中不可用，但我们将根据第1点推导出来。 2 以上。

Query: SEL A.JOB_ID,A.SUBJECT_AREA,A.UC4JOB AS UC4_JOB,A."WORKFLOW/JOB" AS 
 INFA_WORKFLOW,B.STATUS,A.SCH_STRT_TIME,B.START_TIME,A.SLA_TMLINE,
 '??' AS DURATION_CROSSED_AFTER_SLA
 FROM NDW_PRCS_CNTRL_VIEWS.NDW_JOB_DETAIL A JOIN 
 NDW_PRCS_CNTRL_VIEWS.NDW_JOB_RUN_STATUS B 
 ON A.REF_ID = B.REF_ID 
 AND A.JOB_ID = B.JOB_ID 
 WHERE A.REF_ID IN (4171,977,997,1428,755,898,145) 
 AND B.DATA_DATE = DATE - 1;

            
Current Output we are getting:
JOB_ID  SUBJECT_AREA    UC4_JOB INFA_WORKFLOW   STATUS  SCH_STRT_TIME   START_TIME  SLA_TMLINE  DURATION_CROSSED_AFTER_SLA
1,373   Subs by Speed   NDW.EPC.SUBS_BY_SPEED_DATA_LOAD wf_EPC_SUBS_BY_SPEED    COMPLETE    6:00 AM 8/22/2020 06:01:24  6:00 AM ??
343 CSG Run 2   NDW.P1P2MIG.NDW_CCS_DATA_EXTRACT.WF_CSG_EXTRACT_EQP_MERGE_SA    wf_CSG_EXTRACT_EQP_MERGE_SA COMPLETE    23:00 PM    8/21/2020 23:00:24  23:04 PM    ??
906 Billing NDW.P2.IN.WF_ROSETTA_SEMANTIC_ACCOUNT_LEDGER_FACT   wf_ACCOUNT_LEDGER_FACT_INC  COMPLETE    04:00 AM    8/22/2020 02:39:35  06:00 AM    ??
539 iControl    NDW.XHBU.SPRINT1.INFA_WF_DEPENDENT.ICONTROL_STG_JRNL_LOAD   wf_XH_BU_ICONTROL_dly_inc   COMPLETE    05:00 AM    8/22/2020 05:01:25  NA  ??
668 XH BB/Cell Offline  NDW.XHBU.SPRINT2.INFA_WF_DEPENDENT.BB_CELL_OFFLINE_DLY  wf_XH_BB_CELL_OFFLINE_DLY   COMPLETE    06:00 AM    8/22/2020 07:19:49  NA  ??
2,042   NDW_XHBU    NDW_XH.JOBS.SPRINT2.INFA_WF_DEPENDENT.XH_EQUIPMENT_ORDER_DLY    Wf_XH_EQUIPEMENT_ORDER_ACT_DLY  WAITING NA  ?   NA  ??

Answer 1

棘手的部分是存储为 VarChar 的时间和一位数小时。可以使用 RegEx 或 LPAD 添加缺失的前导零：

cast(lpad(nullif(SLA_TMLINE, 'NA'), 8, '0') as time(0) format 'hh:miBT')

当您将其 CAST 为时间戳时，它默认为今天：

cast(cast(lpad(nullif(SLA_TMLINE, 'NA'), 8, '0') as time(0) format 'hh:miBT') as timestamp(0)) as SLA_TS

然后是

case
  when status = 'IN PROGRESS' 
   and SLA_TS < current_timestamp - interval '1' hour
  then 'LONG RUNNING'
  else status
end

case
  when status = 'IN PROGRESS' 
   and SLA_TS < current_timestamp
  then (current_timestamp(0) - SLA_TS minute(4))
end

Teradata 时间戳值调整

Teradata timestamp value adjustments

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