Question

早上好我有一个像下面这样的表，我必须根据“DT1-Increased_Reason”列条目重复这个表。

Region  Market  Cluster         Report_Name     DT1-Increased_Reason
abc     CT      NECTC11123      NECTC11         TMO_Waiting For Report/Recommendations     Approval;#ERIC_Delay between Start to Submit. Refer to DT1-Increased CT Reason (Start to Submit);#
def     LA      GCR_OPT_WELA                    TMO_Waiting For Report/Recommendations Approval;#
abc     NJ      NENJC086567     Westchester_02  ERIC_Drive Test Taking too Long;#ERIC_Lack Of GSC Resources/Queuing DT Drives;#ERIC_Cluster Having Too Many RF Issues Needing Tuning;#

您可以观察到“DT1-Increased_Reason”列中的条目有多个使用“＃;”

我想要的数据是

Region  Market  Cluster         Report Name     DT1-Increased_CT_Reason_Start_to_Accept
abc     CT      NECTC11123      NECTC11         TMO_Waiting For Report/Recommendations Approval
abc     CT      NECTC11123      NECTC11         ERIC_Delay between Start to Submit. Refer to DT1-Increased CT Reason (Start to Submit)
def     LA      GCR_OPT_WELA        TMO_Waiting For Report/Recommendations Approval;#
abc     NJ      NENJC086567     Westchester_02  ERIC_Drive Test Taking too Long
abc     NJ      NENJC086567     Westchester_02  ERIC_Lack Of GSC Resources/Queuing DT Drives
abc     NJ      NENJC086567     Westchester_02  ERIC_Cluster Having Too Many RF Issues Needing Tuning;#

Answer 1

如果您知道最大数量，可以这样做：

select t.Region, t.Market, t.Cluster, t.ReportName,
       substring_index(DT1_Increased_CT_Reason_Start_to_Accept, ';#', 1)
from t 
union all
select t.Region, t.Market, t.Cluster, t.ReportName,       
      substring_index(substring_index(DT1_Increased_CT_Reason_Start_to_Accept, ';#', 2), ';#', -1)
from t 
where DT1_Increased_CT_Reason_Start_to_Accept like '%;#_%'
union all
select t.Region, t.Market, t.Cluster, t.ReportName,       
      substring_index(substring_index(DT1_Increased_CT_Reason_Start_to_Accept, ';#', 3), ';#', -1)
from t 
where DT1_Increased_CT_Reason_Start_to_Accept like '%;#%;#_%';

您可以为其他每个原因添加另一个子查询。

根据列重复mysql中的行数

1 个答案: