Questions on CDS Views with input parameters

Question

Dear Experts,
1. Can we call a CDS View (or generated database view) with input parameters inside an AMDP? I am looking for something similar to the feature in HANA where we can consume calculation view with filters inside SQL Script?
2. I understand we can next CDS Views, but how we can next (call) a CDS View with input parameters inside another CDS View?
Thanks,
Giri

Answer 1

Hi Thomas,
I get the below error that the CDS View's generated table function cannot take field from AMDP.
I have a requirement to query the CDS View using 2 timestamps (start & end). So, in AMDP I have used the TIME_STAMP and try to pass it to the CDS View
View code:
define view Z_Ngi_Cag_A
with parameters start_ts:abap.dec( 15, 0 ) , end_ts:abap.dec( 15, 0 )
as select from table {
resource_key
where
(begtstmp > $parameters.start_ts or endtstmp > $parameters.start_ts )
and
(begtstmp < $parameters.end_ts or endtstmp < $parameters.end_ts )
I am calling using the below AMDP:
DECLARE iv_start_date TIMESTAMP;
DECLARE iv_end_date TIMESTAMP;
SELECT CURRENT_TIMESTAMP INTO iv_start_date from dummy;
SELECT ADD_DAYS(CURRENT_TIMESTAMP, 30) INTO iv_end_date from dummy;
et_data =      SELECT * FROM ZMR_H_CA ( start_ts => iv_start_date, end_ts =>  iv_end_date );
What could be wrong ? Is this not supported?
Thanks,
Giri