Question

在我以前的ColdFusion文件中，我使用的是内联查询，如

SELECT *
FROM   XYZTABLE
WHERE       S.price > 0
                AND O.ORIGQUOTEDATE >= <cfqueryparam cfsqltype="cf_sql_date" value="#getParam('startDate')#">
                AND O.ORIGQUOTEDATE <= <cfqueryparam cfsqltype="cf_sql_date" value="#getParam('endDate')#">
                <cfif len(getParam("lowerPriceLimit")) neq 0 and len(getParam("upperPriceLimit")) neq 0 >
                    AND O.order_total BETWEEN #getParam("lowerPriceLimit")# AND #getParam("upperPriceLimit")#
                <cfelseif len(getParam("lowerPriceLimit")) neq 0 and len(getParam("upperPriceLimit")) eq 0 >
                    AND O.order_total >= #getParam("lowerPriceLimit")#
                <cfelseif len(getParam("lowerPriceLimit")) eq 0 and len(getParam("upperPriceLimit")) neq 0 >
                    AND O.order_total <= #getParam("upperPriceLimit")#       
                </cfif>

现在我想将此查询转换为存储过程。

我写得像这样

CREATE PROCEDURE quoteConversionByCategory(
    @startDate date,
    @endDate date,
    @lowerPriceLimit numeric(18),
    @upperPriceLimit numeric(18)
    )
    AS
    BEGIN
    SELECT * 
    FROM   XYZTABLE
        WHERE   /*Not sure how to write*/
END

唯一的方法是创建动态sql字符串并执行它，还是有其他方法存在？

如何处理这些条件？

<cfif len(getParam("bool")) eq 1>
AND (O.wcs_status_id = 9 or (O.wcs_status_id = 1 and   datediff(hour,O.origquotedate,O.order_date) > 4) )
<cfelse>
 AND O.wcs_status_id IN (9,1)       
</cfif>

Answer 1

只需在OR条件中使用WHERE语句即可完成此操作：

CREATE PROCEDURE quoteConversionByCategory(
@startDate date,
@endDate date,
@lowerPriceLimit numeric(18),
@upperPriceLimit numeric(18)
)
AS
BEGIN
SELECT * 
FROM   XYZTABLE
WHERE price > 0
    AND ORIGQUOTEDATE >= @startDate
    AND ORIGQUOTEDATE <= @endDate
    AND (Order_Total >= @lowerPriceLimit OR @lowerPriceLimit = 0) 
    AND (Order_Total <= @upperPriceLimit OR @upperPriceLimit = 0)

根据您通过下限和上限的方式，您可能需要更改上面的OR条件。例如：

(Order_Total <= @upperPriceLimit OR @upperPriceLimit IS NULL)

如何在存储过程中的where子句中编写动态if else条件？

1 个答案: