Question

我在SSIS中有这种嵌套的三元表达式，我似乎无法开始工作，我的眼睛即将从我的头骨中出来。

FINDSTRING(TRIM(f3),"BASICS",1) != 0 ? (UPPER(LEFT(TRIM(f3),1)) == "F" ? @[User::FallBasicsEntityId] : (UPPER(LEFT(TRIM(f3),1)) == "S" ? @[User::SpringBasicsEntityId] : @[user::BasicsEntityId])) : (UPPER(LEFT(TRIM(f3),1)) == "F" ? @[user::FallEntityId] : (UPPER(LEFT(TRIM(f3),1)) == "S" ? @[user::SpringEntityId] : @[user::DefaultEntityId]))

这是＆＃34;缩进＆＃34;版本：

FINDSTRING(TRIM(f3),"BASICS",1) != 0 
    ? (
        UPPER(LEFT(TRIM(f3),1)) == "F" 
        ? @[User::FallBasicsEntityId] 
        : (
            UPPER(LEFT(TRIM(f3),1)) == "S" 
            ? @[User::SpringBasicsEntityId] 
            : @[user::BasicsEntityId]
          )
      ) 

    : (
        UPPER(LEFT(TRIM(f3),1)) == "F" 
        ? @[user::FallEntityId] 
        : (
            UPPER(LEFT(TRIM(f3),1)) == "S" 
            ? @[user::SpringEntityId] 
            : @[user::DefaultEntityId]
          )
      )

我错过了什么？在我看来，括号是平衡的并且放置得恰当......或者是它们？

我即将抛弃这个并使用脚本组件......在我看来，这样的表达式更容易用C＃代码维护...

Answer 1

括号是平衡的;问题是user与User不同。

嵌套三元组，无法发现错误

1 个答案: