现在我正在处理一个可以生成并返回SQL或MDX查询的程序(取决于查询的源数据库)。我正在努力添加一项功能,该功能可以计算给定查询返回的所有行。
现在,我有一些SQL的小背景,所以我能够解析表名并生成一个rowcount。但是,MDX对我来说是一个全新的野兽。
在SQL中,我正在创建:
SELECT
COUNT(SUM)
AS ROWS
FROM
(
COUNT(*) AS COUNT FROM TABLE1
UNION ALL
COUNT(*) AS COUNT FROM TABLE2
UNION ALL
COUNT(*) AS COUNT FROM TABLE3
ETC...
)
现在,我想知道的是,我将如何与MDX做类似的事情?我已经对MDX做了一些阅读,从我收集到的基本符号是
[Dimension].[Hierarchy].[Level]
现在使用SQL,我从更大的生成查询中解析表名,并将它们简单地插入到以编程方式生成的新查询中。我需要从更大的MDX查询中获取什么来生成我自己的行计数查询并将其发送出去?我正在处理的MDX的一个更简单的例子是:
WITH
MEMBER [BUSINESS1].[XQE_RS_CM1] AS '([BUSINESS1].[COMPANY_H].[all])', SOLVE_ORDER = 8
MEMBER [BUSINESS2].[XQE_RS_CM0] AS '([BUSINESS2].[all])', SOLVE_ORDER = 4
SELECT
NON EMPTY {[BUSINESS2].[ALL_TIME_H].[CALENDAR_YEAR_L].MEMBERS AS [XQE_SA1] , HEAD({[BUSINESS2].[XQE_RS_CM0]}, COUNT(HEAD([XQE_SA1]), INCLUDEEMPTY))} DIMENSION PROPERTIES PARENT_LEVEL, PARENT_UNIQUE_NAME ON AXIS(0),
NON EMPTY {[BUSINESS1].[COMPANY_H].[COMPANY_CD__L].MEMBERS AS [XQE_SA0] , HEAD({[BUSINESS1].[XQE_RS_CM1]}, COUNT(HEAD([XQE_SA0]), INCLUDEEMPTY))} DIMENSION PROPERTIES PARENT_LEVEL, PARENT_UNIQUE_NAME ON AXIS(1),
NON EMPTY {[Measures].[Measures].[BUSINESS3]} DIMENSION PROPERTIES PARENT_LEVEL, PARENT_UNIQUE_NAME ON AXIS(2)
FROM
[SOURCE] CELL PROPERTIES CELL_ORDINAL, FORMAT_STRING, VALUE
任何见解都会很棒,谢谢。
答案 0 :(得分:1)
乍一看,你的脚本看起来很合理,然后解开它后会变得有点(!)更复杂。
这个和其他脚本的主要区别在于它使用了轴(2)。在子选择中经常使用额外的维度,但这有点奇怪,因为大多数客户端无法处理3维单元集 - 所以我对消费这些信息的东西很感兴趣?
成员[BUSINESS1].[XQE_RS_CM1]
也是[BUSINESS2].[XQE_RS_CM0]
的单个成员,那么HEAD...
部分的重点是什么?
WITH
MEMBER [BUSINESS1].[XQE_RS_CM1] AS
([BUSINESS1].[COMPANY_H].[all]), SOLVE_ORDER = 8
MEMBER [BUSINESS2].[XQE_RS_CM0] AS
([BUSINESS2].[all]), SOLVE_ORDER = 4
SELECT
NON EMPTY
{[BUSINESS2].[ALL_TIME_H].[CALENDAR_YEAR_L].MEMBERS AS [XQE_SA1]
,HEAD(
{[BUSINESS2].[XQE_RS_CM0]},
COUNT(
HEAD([XQE_SA1])
,INCLUDEEMPTY
)
)}
ON AXIS(0),
NON EMPTY
{[BUSINESS1].[COMPANY_H].[COMPANY_CD__L].MEMBERS AS [XQE_SA0]
,HEAD(
{[BUSINESS1].[XQE_RS_CM1]},
COUNT(
HEAD([XQE_SA0])
,INCLUDEEMPTY
)
)}
ON AXIS(1),
NON EMPTY
{
[Measures].[Measures].[BUSINESS3]
}
ON AXIS(2)
FROM
[SOURCE]
以下内容是否返回与原始脚本相同的数据?
SELECT
NON EMPTY
{
[BUSINESS2].[ALL_TIME_H].[CALENDAR_YEAR_L].MEMBERS
,[BUSINESS2].[all]
}
ON 0,
NON EMPTY
{
[BUSINESS1].[COMPANY_H].[COMPANY_CD__L].MEMBERS
,[BUSINESS1].[COMPANY_H].[all]
}
ON 1
FROM [SOURCE]
WHERE [Measures].[Measures].[BUSINESS3];
然后您需要计算的是在行中的以下集合中返回的成员数:
{
[BUSINESS1].[COMPANY_H].[COMPANY_CD__L].MEMBERS
,[BUSINESS1].[COMPANY_H].[all]
}