Crystal reports 显示最新的水晶公式

表中有从workout1到workout7的训练列

我想创建用于检查最新训练（更高）的公式，并将其显示在crystal report中。例如，检查workout7是否有值，然后在任何其他训练列之前显示它，否则检查workout6，如果有值，则在其他列之前显示它，依此类推

但我认为if else陈述不是执行此项工作的正确选择。正确的方法是什么

任何帮助都将不胜感激

---

您可以从两方面都做，在sqlserver方面做得很好，可以获得更好的性能

对于sqlserver端，这是一个示例

create table tempworkout (dmv_workpatten varchar(50), dmv_workin1 varchar(50) , dmv_workout1 varchar(50)
, dmv_workin2 varchar(50) , dmv_workout2 varchar(50)
, dmv_workin3 varchar(50) , dmv_workout3 varchar(50)
, dmv_workin4 varchar(50) , dmv_workout4 varchar(50)
, dmv_workin5 varchar(50) , dmv_workout5 varchar(50)
, dmv_workin6 varchar(50) , dmv_workout6 varchar(50)
, dmv_workin7 varchar(50) , dmv_workout7 varchar(50))

insert into tempworkout values ('WP1', 1,2,3,4,5,6,7,8,9,10,11,12,13,14)
,('WP1', 2,3,4,5,6,7,8,9,10,11,12,13,14, 15)
,('WP1', 3,4,5,6,7,8,9,10,11,12,13,null,15,null)
,('WP1', 4,5,6,7,8,9,10,11,12,null,14,null,16,null)
,('WP1', 4,5,6,7,8,9,10,null,12,null,14,null,16,null)

select * from tempworkout

select COALESCE(dmv_workout7, COALESCE(dmv_workout6, COALESCE(dmv_workout5,COALESCE(dmv_workout4,COALESCE(dmv_workout3,COALESCE(dmv_workout2,dmv_workout1)))))),
* from tempworkout

insert into tempworkout values ('WP1', 1,null,3,null,5,null,7,null,9,null,11,null,13,null)

select COALESCE(dmv_workout7, COALESCE(dmv_workout6, COALESCE(dmv_workout5,COALESCE(dmv_workout4,COALESCE(dmv_workout3,COALESCE(dmv_workout2,dmv_workout1)))))),
* from tempworkout
drop table tempworkout

crystal report中的比较有问题。在crystal report端，您可以使用like:（检查语法）

如果不是IsNull（{table1.id}），那么
（如果{table1.name}“a”，则
var1:=“你好”
其他的
var1:=“Hi”；）
其他的
var1:=“再见”；

---

如果该值不为空，则需要检查该值，如果该值不为空，则打印该值，否则继续检查降序方法中的步骤，只要找到该值，就打印它

if NOT ISNULL ({EB_Tam_DailyMv.dmv_workout10}) then
{EB_Tam_DailyMv.dmv_workout10}

else  if NOT  ISNULL ({EB_Tam_DailyMv.dmv_workout9}) then
{EB_Tam_DailyMv.dmv_workout9}

else if  NOT ISNULL ({EB_Tam_DailyMv.dmv_workout8}) then 
{EB_Tam_DailyMv.dmv_workout8}

else if  NOT ISNULL ({EB_Tam_DailyMv.dmv_workout7}) then 
{EB_Tam_DailyMv.dmv_workout7} 

else if NOT ISNULL({EB_Tam_DailyMv.dmv_workout6}) then 
{EB_Tam_DailyMv.dmv_workout6}

else if NOT ISNULL({EB_Tam_DailyMv.dmv_workout5}) then 
{EB_Tam_DailyMv.dmv_workout5}

 else if NOT ISNULL({EB_Tam_DailyMv.dmv_workout4}) then 
 {EB_Tam_DailyMv.dmv_workout4}

 else if NOT ISNULL ({EB_Tam_DailyMv.dmv_workout3}) then 
 {EB_Tam_DailyMv.dmv_workout3}

else if NOT ISNULL ({EB_Tam_DailyMv.dmv_workout2}) then 
{EB_Tam_DailyMv.dmv_workout2}

else if NOT ISNULL ({EB_Tam_DailyMv.dmv_workout1}) then 
{EB_Tam_DailyMv.dmv_workout1}

else "00:00"

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哪个版本的sqlserver？同样在tag你写的是Crystal report 2008，对吗？或者sqlserver？sqlserver 2012和crystal report 2008那么您希望在sqlserver端或crystal report端执行此操作吗？列的数据类型是什么？列的数据类型是时间

if NOT ISNULL ({EB_Tam_DailyMv.dmv_workout10}) then
{EB_Tam_DailyMv.dmv_workout10}

else  if NOT  ISNULL ({EB_Tam_DailyMv.dmv_workout9}) then
{EB_Tam_DailyMv.dmv_workout9}

else if  NOT ISNULL ({EB_Tam_DailyMv.dmv_workout8}) then 
{EB_Tam_DailyMv.dmv_workout8}

else if  NOT ISNULL ({EB_Tam_DailyMv.dmv_workout7}) then 
{EB_Tam_DailyMv.dmv_workout7} 

else if NOT ISNULL({EB_Tam_DailyMv.dmv_workout6}) then 
{EB_Tam_DailyMv.dmv_workout6}

else if NOT ISNULL({EB_Tam_DailyMv.dmv_workout5}) then 
{EB_Tam_DailyMv.dmv_workout5}

 else if NOT ISNULL({EB_Tam_DailyMv.dmv_workout4}) then 
 {EB_Tam_DailyMv.dmv_workout4}

 else if NOT ISNULL ({EB_Tam_DailyMv.dmv_workout3}) then 
 {EB_Tam_DailyMv.dmv_workout3}

else if NOT ISNULL ({EB_Tam_DailyMv.dmv_workout2}) then 
{EB_Tam_DailyMv.dmv_workout2}

else if NOT ISNULL ({EB_Tam_DailyMv.dmv_workout1}) then 
{EB_Tam_DailyMv.dmv_workout1}

else "00:00"