Question

我正在尝试在DataStage的Transformation Stage中编写以下嵌套的If-Then-else语句，但它给我编译错误。任何人都可以告诉我有没有其他方法可以做到这一点？

If IsNotNull(DSLink16.DECISION_ID) 
Then (
    If DSLink16.DECISION_RESULT = 1 Then (
        If DSLink16.DECISION_CODE = 'ALOW' Then 'DENY'
        Else If DSLink16.DECISION_CODE = 'DENY' Then 'ALOW'
        Else If DSLink16.DECISION_CODE = 'NOIS' Then 'NOIS'
    )
    Else If DSLink16.DECISION_RESULT = 2 Then 'DSMS'
    Else If DSLink16.DECISION_RESULT = 3 Then (
        If APPELANT_CODE = 'CLMT' Then 'ALOW' Else 'DENY'
    )
    Else If DSLink16.DECISION_RESULT = 4 Then (
        If APPELANT_CODE = 'CLMT' Then 'DENY' Else 'ALOW'
    )
    Else If DSLink16.DECISION_RESULT = 5 Then DSLink16.DECISION_CODE
    Else If DSLink16.DECISION_RESULT = 6 or DSLink16.DECISION_RESULT = 7 or DSLink16.DECISION_RESULT = 8 Then 'DENY'
)

Else (
    If DSLink16.DECISION_RESULT = 1 Then 'DENY'
    Else If DSLink16.DECISION_RESULT = 2 Then 'DENY'
    Else If DSLink16.DECISION_RESULT = 3 Then 'ALOW'
    Else If DSLink16.DECISION_RESULT = 4 Then 'DENY'
    Else If DSLink16.DECISION_RESULT = 5 Then 'ALOW'
    Else If DSLink16.DECISION_RESULT = 6 Then 'DENY'
    Else If DSLink16.DECISION_RESULT = 7 Then 'DENY'
    Else If DSLink16.DECISION_RESULT = 8 Then 'DENY'
)

Answer 1

看起来每个If都应该有相应的Else块。以下为我工作：

If IsNotNull(DSLink16.DECISION_ID) 
Then (
              If DSLink16.DECISION_RESULT = 1 Then (
                                If DSLink16.DECISION_CODE = 'ALOW' Then 'DENY'
                               ELSE If DSLink16.DECISION_CODE = 'DENY' Then 'ALOW'
                               ELSE 'NOIS' 
                )   ELSE If DSLink16.DECISION_RESULT = 2 Then 'DSMS'   ELSE If DSLink16.DECISION_RESULT = 3 Then (
                                If DSLink16.APPELANT_CODE = 'CLMT' then 'ALOW' Else 'DENY'
                )   ELSE If DSLink16.DECISION_RESULT = 4 Then (
                                If DSLink16.APPELANT_CODE = 'CLMT' Then 'DENY' Else 'ALOW'
                )  ELSE If DSLink16.DECISION_RESULT = 5 Then DSLink16.DECISION_CODE
              ELSE   'DENY' 
)

Else (
            If DSLink16.DECISION_RESULT = 1 Then 'DENY' 
                ELSE If DSLink16.DECISION_RESULT = 2 Then 'DENY' 
                ELSE If DSLink16.DECISION_RESULT = 3 Then 'ALOW' 
                ELSE If DSLink16.DECISION_RESULT = 4 Then 'DENY' 
                ELSE If DSLink16.DECISION_RESULT = 5 Then 'ALOW' 
                ELSE If DSLink16.DECISION_RESULT = 6 Then 'DENY' 
                ELSE If DSLink16.DECISION_RESULT = 7 Then 'DENY' 
                ELSE If DSLink16.DECISION_RESULT = 8 Then 'DENY'
                                                                ELSE 'DENY'                )

Answer 2

假设DECISION_RESULT是某种整数，则可以写出最后一块：

If DSLink16.DECISION_RESULT = 3 Or DSLink16.DECISION_RESULT = 5
Then "ALOW" Else "DENY"

DataStage中嵌套的If-Then-Else用法

2 个答案: