case when syntax error

[Babloo]

Could you please help me to resolve the following syntax error? I'm trying to do this under expression in SAS DI

case when KNKBTY = '1' then TBFR10.AGI
5             when KNKBTY = '2' then QISFR10.AGI
6             when QISFR10.AGI=. then TBFR10.AGI
7             end
8             end
              ___
              22
              76
ERROR 22-322: Syntax error, expecting one of the following: ;, !, !!, &, *, **, +, -, /, <, <=, <>, =, >, >=, ?, AND, BETWEEN, 
              CONTAINS, EQ, EQT, EXCEPT, GE, GET, GROUP, GT, GTT, HAVING, IN, INTERSECT, IS, LE, LET, LIKE, LT, LTT, NE, NET, NOT, 
              NOTIN, OR, ORDER, OUTER, UNION, ^, ^=, |, ||, ~, ~=.  

ERROR 76-322: Syntax error, statement will be ignored.

9             end;

[Kurt_Bremser]

A case in SQL needs only one end.

Read the documentation.

[LinusH]

If you use the Join transformation, it comes with a point-and-click interface for case statement. It's not super smooth, but try it out, at least as a way of learning the syntax.

[Babloo]

Yes I'm using Join transformation but I'm not sure how to use the point and
click interface to know the syntax.

[Reeza]

You read the documentation to understand the syntax.

[Patrick]

DIS adds the end statement for you so don't have it in your expression. You just need to define the CASE bit in the expression.

[VenuKadari]

Your CASE statement should be as follows:

Your case statement should be something like this:

Select

...
case KNKBTY
when '1' then TBFR10.AGI
when '2' then QISFR10.AGI
else "something"
end as KNKBTY
.....

In DI Studio, In Expression select "CASE"
In Operand: select column (KNKBTY)
Click on New to enter a condition
Enter your condition in "WHEN Condition", Enter Result in THEN Result

Like other user users are suggesting please refer to doc for more information.

[Tom]

Are you trying your own SAS code into SAS/DI ?  If so then sure to use valid syntax.  If you are making a program code file then indentation will make it easier for you to verify you have used valid syntax.

case
  when KNKBTY = '1' then TBFR10.AGI
  when KNKBTY = '2' then QISFR10.AGI
  when QISFR10.AGI=. then TBFR10.AGI
  else .
end

For that to work it needs to be part of a valid SQL statement.  Perhaps you are using it as one of the variables in a SELECT statement?  If so then you need to give the new variable a name. So you full SQL statement might look something like this:

select 
  KNKBTY
, QIDFR10.AGI
, case
    when KNKBTY = '1' then TBFR10.AGI
    when KNKBTY = '2' then QISFR10.AGI
    when QISFR10.AGI=. then TBFR10.AGI
    else .
  end as NEW_VAR
from TBFR10
inner join QISFR10
  on QISFR10.id = TBFR10.id
;