Question

我是SQL的新手，我一直致力于我的First Query。现在我需要你的帮助。我在Excel中有这个报告。我在AGE列N中计算AGE的公式。我一直在尝试创建一个SQL查询来提出相同的答案。到目前为止，我已经找到了我需要的列，并将所有数据提取到Match Excel。唯一的问题是我不知道如何以及在何处输入此IF语句，因此它将计算运行查询时的年龄。

Work Order  Location    MISC    Status  Actual Finish   Finish Time Parent WO   Work Type   N   Reported Date   Reported Time   Site    Gen Age Sub Name    Substation Location                         
1234567899  4074        COMP    11/5/14 3:08:49 PM      CM      10/7/14 1:47:42 PM          29.05633102                                 
12348574987 2946        SCHED               CM      10/30/14    10:28:03 AM         188.5638542

AGE是一个公式，粘贴在下面：

=IF ((IF(Status<>"Comp",Today()-Reported date, actual finish-reported date))<0,0, IF(STATUS<>"COMP", TODAY()-REPORTED DATE, ACTUAL FINISH-REPORTED DATE))

SQL Writen查询

SELECT WO.WONUM,                                                                                        
  LOCOFFDESC.DESCRIPTION AS OFFICE,                                                                                     
  WO.STATUS,                                                                                        
  WO.LOCATION,                                                                                      
  CASE                                                                                      
    WHEN ((INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 2, 3)) = 0)                                                                                        
    THEN SUBSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, ((INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 1, 2) + 2)), LENGTH(LOCOFF.EXT_LOC_HIERARCHY_PATH))                                                                                      
    WHEN ((INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 2, 3)) IS NOT NULL)                                                                                        
    THEN SUBSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, ((INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 1, 2) + 2)), (INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 2, 3)) - (INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 1, 2) + 2))                                                                                      
  END AS "SUBSTATION CASE",                                                                                     
  WO.PARENT,                                                                                        
  WO.WORKTYPE,                                                                                      
  WO.REPORTEDBY,                                                                                        
  WO.REPORTDATE,                                                                                        
  WO.ACTFINISH,                                                                                     
  WO.SITEID                                                                                     
FROM LOCATIONS LOCOFF                                                                                       
RIGHT JOIN MAXPRD.WORKORDER WO                                                                                      
ON WO.LOCATION = LOCOFF.LOCATION                                                                                        
INNER JOIN MAXPRD.LOCANCESTOR LOCOFFANC                                                                                     
ON LOCOFFANC.LOCATION = LOCOFF.LOCATION                                                                                     
INNER JOIN MAXPRD.LOCATIONS LOCOFFDESC                                                                                      
ON LOCOFFANC.ANCESTOR = LOCOFFDESC.LOCATION                                                                                     
INNER JOIN MAXPRD.LOCHIERARCHY LOCOFFHIER                                                                                       
ON LOCOFFANC.ANCESTOR = LOCOFFHIER.LOCATION                                                                                     
WHERE LOCOFF.SITEID   = 'SUB'                                                                                       
AND LOCOFFHIER.PARENT = '2000'                                                                                      
GROUP BY WO.WONUM,                                                                                      
  LOCOFFDESC.DESCRIPTION,                                                                                       
  WO.STATUS,                                                                                        
  WO.LOCATION,                                                                                      
  LOCOFF.EXT_LOC_HIERARCHY_PATH,                                                                                        
  LOCOFF.SITEID,                                                                                        
  LOCOFFHIER.PARENT,                                                                                        
  WO.PARENT,                                                                                        
  WO.WORKTYPE,                                                                                      
  WO.REPORTEDBY,                                                                                        
  WO.REPORTDATE,                                                                                        
  WO.ACTFINISH,                                                                                     
  WO.SITEID

Answer 1

您将计算放在SELECT语句之后，在FROM语句之前，因此您有一个用计算值填充的列，类似于excel。

我们需要知道您正在使用哪种数据库系统来获取确切的语法。你可以试试WO.SITEID，

SELECT WO.WONUM,
  LOCOFFDESC.DESCRIPTION AS OFFICE,
  WO.STATUS,
  WO.LOCATION,
  CASE
    WHEN ((INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 2, 3)) = 0)
    THEN SUBSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, ((INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 1, 2) + 2)), LENGTH(LOCOFF.EXT_LOC_HIERARCHY_PATH))
    WHEN ((INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 2, 3)) IS NOT NULL)
    THEN SUBSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, ((INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 1, 2) + 2)), (INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 2, 3)) - (INSTR(LOCOFF.EXT_LOC_HIERARCHY_PATH, '/', 1, 2) + 2))
  END AS "SUBSTATION CASE",
  WO.PARENT,
  WO.WORKTYPE,
  WO.REPORTEDBY,
  WO.REPORTDATE,
  WO.ACTFINISH,
  WO.SITEID,
 (
CASE 
    WHEN (
        CASE WHEN WO.STATUS != 'Comp'
            THEN SYSDATE-WO.REPORTDATE
            ELSE WO.ACTFINISH-WO.REPORTDATE
        END) < 0
        THEN 0
        ELSE
            CASE WHEN STATUS != 'COMP'
                THEN SYSDATE-WO.REPORTDATE
                ELSE WO.ACTFINISH-WO.REPORTDATE
            END
END) as age
FROM LOCATIONS LOCOFF
RIGHT JOIN MAXPRD.WORKORDER WO
ON WO.LOCATION = LOCOFF.LOCATION
INNER JOIN MAXPRD.LOCANCESTOR LOCOFFANC
ON LOCOFFANC.LOCATION = LOCOFF.LOCATION
INNER JOIN MAXPRD.LOCATIONS LOCOFFDESC
ON LOCOFFANC.ANCESTOR = LOCOFFDESC.LOCATION
INNER JOIN MAXPRD.LOCHIERARCHY LOCOFFHIER
ON LOCOFFANC.ANCESTOR = LOCOFFHIER.LOCATION
WHERE LOCOFF.SITEID   = 'SUB'
AND LOCOFFHIER.PARENT = '2000'
GROUP BY WO.WONUM,
  LOCOFFDESC.DESCRIPTION,
  WO.STATUS,
  WO.LOCATION,
  LOCOFF.EXT_LOC_HIERARCHY_PATH,
  LOCOFF.SITEID,
  LOCOFFHIER.PARENT,
  WO.PARENT,
  WO.WORKTYPE,
  WO.REPORTEDBY,
  WO.REPORTDATE,
  WO.ACTFINISH,
  WO.SITEID

为MS SQL服务器编辑。编辑AGAIN for Oracle：）

if语句用于计算年龄

1 个答案: