topic Re: I need to convert the below SQL case statement into if\else for talend in Talend Studio

I need to convert the below SQL case statement into if\else for talend

RAJ6 — Tue, 25 Jul 2017 06:28:07 GMT

Hi Talend Folks,

i need your help. could you please tell me. how to convert the below SQL case statement into if\else using tmap components for talend.

(case
when
(case
when t1.Sales = 'others' and t2.Bundled = 'Bundled'
then 'Bundled'
else t1.Sales end) = 'others'
then 'Discounted'

else
(case
when t1.Sales = 'others' and t2.Bundled = 'Bundled'
then 'Bundled'
else t1.Sales end)
end) AS Bundle

Re: I need to convert the below SQL case statement into if\else for talend

TRF — Tue, 25 Jul 2017 08:54:44 GMT

Can you share the flow schema?

Is only 1 flow or 2?

Also give a sample input data with expected result.

Re: I need to convert the below SQL case statement into if\else for talend

RAJ6 — Tue, 25 Jul 2017 09:03:39 GMT

My source is excel file. I have sql logic. i need to create same sql expression in talend using tmap.

Sales Excel and drop it to the design work space and select tfileInputExcel option from pop window then am using tmap component. I dragged all columns into output excel file side then I Just created new column as bundled then I wrote if \ else Statement. the logic is given below

((row8.Sales == "others" && row9.Bundled== "Bundled") ? "Bundled" : ((row8.Sales) == "others" ? "Discounted" :

((row8.Sales == "others" && row9.Bundled== "Bundled") ? "Bundled" :

((row8.Sales)))))

Above logic is not working. am getting error

Re: I need to convert the below SQL case statement into if\else for talend

TRF — Tue, 25 Jul 2017 13:23:47 GMT

1st, don't use "==" to compare strings, use String.equals method or String.equalsIgnoreCase instead giving:

"others".equals(row8.Sales)

and so on.

2nd, rethink the logic, you have twice the same test (row8.Sales == "others" && row9.Bundled == "Bundled") which cannot occurs.

Re: I need to convert the below SQL case statement into if\else for talend

med1 — Tue, 25 Jul 2017 15:36:43 GMT

Hello,

You can use condition statement in tMap :

row1.myKey.equals("FirstValue")?1:0

which allow you to do your query in the variable window and get the result in the tMap output.

Thanks,

Med

Re: I need to convert the below SQL case statement into if\else for talend

genupula — Thu, 23 Jan 2020 07:22:30 GMT

Hi All,

i need to convert the below case statement in talend

CASE WHEN mcw_qualitypot_prod_event_deduped.qualitypot_prod_task_type ="IMAGE_REVIEW"
AND mcw_qualitypot_prod_event_deduped.qualitypot_prod_error :: text ='incorrectRejected'
THEN count(
mcw_qualitypot_prod_event_deduped.qualitypot_prod_error
) ELSE NULL END AS quality_incorrectrejectedpots,

please provide solution for the above requirement

Re: I need to convert the below SQL case statement into if\else for talend

TRF — Thu, 23 Jan 2020 07:49:29 GMT

@Shekar_genupula if the answer in this post is not sufficient for your case, open a new post.

Re: I need to convert the below SQL case statement into if\else for talend

genupula — Thu, 23 Jan 2020 07:59:51 GMT

i have created new post

https://community.talend.com/t5/Design-and-Development/need-to-convert-below-case-statement-in-talend/m-p/212042#M116468