Oracle Where 案例

Posted 2023-03-27

【中文标题】Oracle Where 案例

【英文标题】：Oracle Where Case

【发布时间】：2018-08-31 13:48:30

【问题描述】：

我需要根据布尔值在where子句中创建一个条件。

如果为 true，则当最终值与预期值不同时（ConfirmedVolume > ExpectedVolume 等）我选择行，如果为 false，我选择所有内容。

我查看了一些链接，但无法将这个想法应用于我的查询。

例如。

Conditional WHERE clause with CASE statement in Oracle

Oracle Conditional where clause

代码：

SELECT  RouteId,
        Id,
        RouteStatusId,
        Address,
        Latitude,
        Longitude,
        ExpectedQty,
        ConfirmedQty,
        FinalQty,
        ExpectedWeight,
        ConfirmedWeight,
        FinalWeight,
        ExpectedVolume,
        ConfirmedVolume,
        FinalVolume,
        Comm,
        MAX(EndTime) - MAX(StartTime),
        MAX(StartTime),
        MAX(EndTime),
        WaitTime,
        MAX(CAST(EndTime AS DATE)),
        UOM,
        BPName

FROM
(
SELECT 
    RouteStop.[RouteId] RouteId,
    RouteStop.[Id] Id,
    RouteStop.[RouteStatusId] RouteStatusId,
    SiteAddress.[Address] Address,
    SiteAddress.[Latitude] Latitude,
    SiteAddress.[Longitude] Longitude,
    SUM(RouteStop_Product.[ExpectedQty]) ExpectedQty,
    SUM(RouteStop_Product.[ConfirmedQty]) ConfirmedQty,
    SUM(RouteStop_Product.[FinalQty]) FinalQty,
    SUM(RouteStop_Product.[ExpectedWeight]) ExpectedWeight,
    SUM(RouteStop_Product.[ConfirmedWeight]) ConfirmedWeight,
    SUM(RouteStop_Product.[FinalWeight]) FinalWeight,
    SUM(RouteStop_Product.[ExpectedVolume]) ExpectedVolume,
    SUM(RouteStop_Product.[ConfirmedVolume]) ConfirmedVolume,
    SUM(RouteStop_Product.[FinalVolume]) FinalVolume,
    RouteStop.[Comment] Comm,
    CASE WHEN GPS.[EventTypeId] = @RouteStopStarted
         THEN GPS.[DateTime] 
         ELSE CAST(NULL AS DATE)
    END StartTime,
    CASE WHEN GPS.[EventTypeId] = @RouteStopCompleted 
           OR GPS.[EventTypeId] = @RouteStopFailed
         THEN GPS.[DateTime]
         ELSE CAST(NULL AS DATE)
    END EndTime,
    GPS.[EventTypeId] EventTypeId,
    RouteStop.[WaitTime] WaitTime, 
    Order.[UOM] UOM,
    BusinessPartner.[CardName] BPName
FROM RouteStop
LEFT JOIN RouteStop_Product ON RouteStop.[Id]              = RouteStop_Product.[RouteStopId]
LEFT JOIN GPS               ON RouteStop.[Id]              = GPS.[RouteStopID]
LEFT JOIN SiteAddress       ON RouteStop.[SiteAddress]     = SiteAddress.[Id]
LEFT JOIN BusinessPartner ON SiteAddress.[CardCode] = BusinessPartner.[Id]
LEFT JOIN Order             ON RouteStop_Product.[OrderId] = Order.[Id]
LEFT JOIN SitePlanningArea  ON SiteAddress.[Id]            = SitePlanningArea.[SiteAddressId]
WHERE RouteStop.[Id] = @RouteStopId
      AND (SitePlanningArea.[PlanningAreaId] = @PlanningAreaId OR @PlanningAreaId = 0)
GROUP BY RouteStop.[RouteId],
         RouteStop.[Id],
         RouteStop.[RouteStatusId],
         SiteAddress.[Address],
         SiteAddress.[Latitude],
         SiteAddress.[Longitude],
         RouteStop.[Comment],
         GPS.[EventTypeId],
         GPS.[DateTime],
         RouteStop.[WaitTime],
         Order.[UOM],
         BusinessPartner.[CardName]
)
GROUP BY RouteId,
        Id,
        RouteStatusId,
        Address,
        Latitude,
        Longitude,
        ExpectedQty,
        ConfirmedQty,
        FinalQty,
        ExpectedWeight,
        ConfirmedWeight,
        FinalWeight,
        ExpectedVolume,
        ConfirmedVolume,
        FinalVolume,
        Comm,
        WaitTime,
        UOM,
        BPName

我想在哪里做类似的事情：

WHERE RouteStop.[Id] = @RouteStopId
      AND (SitePlanningArea.[PlanningAreaId] = @PlanningAreaId OR @PlanningAreaId = 0)
      AND IF boolean = true
          ConfirmedVolume > ExpectedValue
      AND ConfirmedQuantity > ExpectedQuantity

【问题讨论】：

您确定您使用的是 Oracle 吗？那些可怕的方括号看起来更像微软的 T-SQL

我正在使用 Outsystems。

outsystems 不是数据库产品。

尝试至少了解它是什么。

我明白它是什么——一个编程环境。它不是数据库。但是您的问题是寻求 SQL 语句的帮助，因此您的 IDE 或框架大多是无关紧要的（我假设所有那些无效的花括号都将在运行时被替换）。为了让您获得对您有帮助的答案，您必须告诉我们您正在使用哪种数据库产品。如果您得到一个针对 Oracle 但您使用的是 SQL Server 的答案，这对您没有帮助。这是两种截然不同的产品

【参考方案1】：

伪代码推理，你可能需要编辑

IF boolean = true
          ConfirmedVolume > ExpectedValue

变成类似

( (boolean = true and ConfirmedVolume > ExpectedValue) OR (boolean = false) )