具有时间戳类型的SAP自动预测库日期
问题描述：
我想使用自动预测库APL执行一些分析，如回归/分类，聚类或时间序列。 我有一张带Timestamp类型的表格（23.09.2011 19：30：00.0,23.09.2011 19：45：00.0,23.09.2011 20：00：00.0 ....）我用APL创建了一个模型，但是我空了表“MODEL_TRAIN_BIN”，“OPERATION_LOG”，“摘要”和“指标”具有时间戳类型的SAP自动预测库日期
我想火车和应用，但我得到这个错误： [APL错误]自动分析错误（-2147024809）：相“KxCPPInterf :: IKxenModel :: sendMode（）'[[Root [7f2c5ed9f800]：日期变量（ZEITSTEMPEL）无效。它是不变的。 ]]
我想知道我们是否可以使用Timestamp类型执行时间序列，还是只应使用Date变量。
在此先感谢
这里是SQL：
drop type IST_VERBRAUCH_T;
create type IST_VERBRAUCH_T as table (
"ZEITSTEMPEL" TIMESTAMP,
"IST_VERBRAUCH" DECIMAL(10,3)
);
-- --------------------------------------------------------------------------
-- Create table type for the forecast output
-- --------------------------------------------------------------------------
drop type IST_VERBRAUCH_OUT_T;
create type IST_VERBRAUCH_OUT_T as table (
"ZEITSTEMPEL" TIMESTAMP,
"IST_VERBRAUCH" DECIMAL(10,3),
"kts_1" DOUBLE
);
-- --------------------------------------------------------------------------
-- Create AFL wrappers for the APL function
-- --------------------------------------------------------------------------
-- the AFL wrapper generator needs the signature of the expected stored proc
drop table FORECAST_SIGNATURE;
create column table FORECAST_SIGNATURE like PROCEDURE_SIGNATURE_T;
insert into FORECAST_SIGNATURE values (1, 'USER_APL','FUNCTION_HEADER_T', 'IN');
insert into FORECAST_SIGNATURE values (2, 'USER_APL','OPERATION_CONFIG_T', 'IN');
insert into FORECAST_SIGNATURE values (3, 'USER_APL','VARIABLE_DESC_T', 'IN');
insert into FORECAST_SIGNATURE values (4, 'USER_APL','VARIABLE_ROLES_T', 'IN');
insert into FORECAST_SIGNATURE values (5, 'USER_APL','IST_VERBRAUCH_T', 'IN');
insert into FORECAST_SIGNATURE values (6, 'USER_APL','IST_VERBRAUCH_OUT_T', 'OUT');
insert into FORECAST_SIGNATURE values (7, 'USER_APL','OPERATION_LOG_T', 'OUT');
insert into FORECAST_SIGNATURE values (8, 'USER_APL','SUMMARY_T', 'OUT');
insert into FORECAST_SIGNATURE values (9, 'USER_APL','INDICATORS_T', 'OUT');
call SYS.AFLLANG_WRAPPER_PROCEDURE_DROP('USER_APL','APLWRAPPER_FORECAST');
call SYS.AFLLANG_WRAPPER_PROCEDURE_CREATE('APL_AREA','FORECAST','USER_APL', 'APLWRAPPER_FORECAST', FORECAST_SIGNATURE);
-- --------------------------------------------------------------------------
-- Create the input/output tables used as arguments for the APL function
-- --------------------------------------------------------------------------
drop table FUNC_HEADER;
create table FUNC_HEADER like FUNCTION_HEADER_T;
insert into FUNC_HEADER values ('Oid', '#42');
insert into FUNC_HEADER values ('LogLevel', '8');
-- Create a view which contains the sorted dataset
drop view IST_VERBRAUCH_SORTED;
create view IST_VERBRAUCH_SORTED as select "ZEITSTEMPEL","IST_VERBRAUCH" from POC_ENVIAM_APP.IST_VERBRAUCH order by "ZEITSTEMPEL" asc;
drop table FORECAST_CONFIG;
create table FORECAST_CONFIG like OPERATION_CONFIG_T;
insert into FORECAST_CONFIG values ('APL/Horizon', '21');
insert into FORECAST_CONFIG values ('APL/TimePointColumnName', 'ZEITSTEMPEL');
insert into FORECAST_CONFIG values ('APL/LastTrainingTimePoint', '23.09.2011 19:30:00.0');
drop table VARIABLE_DESC;
create table VARIABLE_DESC like VARIABLE_DESC_T;
drop table VARIABLE_ROLES;
create table VARIABLE_ROLES like VARIABLE_ROLES_T;
insert into VARIABLE_ROLES values ('ZEITSTEMPEL', 'input');
insert into VARIABLE_ROLES values ('IST_VERBRAUCH', 'target');
drop table FORECAST_OUT;
create table FORECAST_OUT like IST_VERBRAUCH_OUT_T;
drop table OPERATION_LOG;
create table OPERATION_LOG like OPERATION_LOG_T;
drop table SUMMARY;
create table SUMMARY like SUMMARY_T;
drop table INDICATORS;
create table INDICATORS like INDICATORS_T;
-- --------------------------------------------------------------------------
-- Execute the APL function using its AFL wrapper and the actual input/output tables
-- --------------------------------------------------------------------------
call APLWRAPPER_FORECAST(FUNC_HEADER, FORECAST_CONFIG, VARIABLE_DESC, VARIABLE_ROLES, USER_APL.IST_VERBRAUCH_SORTED, FORECAST_OUT, OPERATION_LOG, SUMMARY, INDICATORS) with overview;
select * from "USER_APL"."FORECAST_OUT" order by "ZEITSTEMPEL" asc;
select * from "USER_APL"."OPERATION_LOG";
select * from "USER_APL"."SUMMARY";
select * from "USER_APL"."INDICATORS";