DB 2 Select 发现无效字符“DECFLOAT”

Question

I get a error in the following SQL Statements:

SELECT
    KA.P_NR
    CASE WHEN KA.AS_ROL LIKE 'TEST01%'
        THEN SUBSTRING(KA.AS_ROL, (CHARACTER_LENGTH((KA.AS_ROL)-2), CODEUNITS32), 3, CODEUNITS32)
        ELSE 0
    END IF AS AS_ROL_LD
FROM KA_REST AS KA

ERROR:

AN ERROR while processing the results. - Invalid Character found in a character String of the function "DECFLOAT"

Does anyone know how I can solve this?

Answer 1

I think

THEN SUBSTRING(KA.AS_ROL, (CHARACTER_LENGTH((KA.AS_ROL)-2), CODEUNITS32), 3, CODEUNITS32)

Can be expressed with

THEN RIGHT(KA.AS_ROL, 3, CODEUNITS32)