SAP HANA Predictive Analysis Library (PAL)

For Single Exponential Smoothing:
SET SCHEMA DM_PAL;
DROP TYPE PAL_FORECASTSINGLESMOOTHING_DATA_T;
CREATE TYPE PAL_FORECASTSINGLESMOOTHING_DATA_T AS TABLE ("TIMESTAMP" INT,
"VALUE" DOUBLE);
DROP TYPE PAL_CONTROL_T;
CREATE TYPE PAL_CONTROL_T AS TABLE ("NAME" VARCHAR(100), "INTARGS" INT,
"DOUBLEARGS" DOUBLE, "STRINGARGS" VARCHAR(100));
DROP TYPE PAL_OUTPARAMETER_T;
CREATE TYPE PAL_OUTPARAMETER_T AS TABLE ("NAME" VARCHAR(100), "VALUE" DOUBLE);
DROP TYPE PAL_FORECASTSINGLESMOOTHING_FORECAST_T;
CREATE TYPE PAL_FORECASTSINGLESMOOTHING_FORECAST_T AS TABLE ("TIMESTAMP" INT,
"VALUE" DOUBLE, "DIFFERENCE" DOUBLE);
DROP TABLE PAL_FORECASTSINGLESMOOTHING_PDATA_TBL;
CREATE COLUMN TABLE PAL_FORECASTSINGLESMOOTHING_PDATA_TBL("POSITION" INT,
"SCHEMA_NAME" NVARCHAR(256), "TYPE_NAME" NVARCHAR(256), "PARAMETER_TYPE"
VARCHAR(7));
INSERT INTO PAL_FORECASTSINGLESMOOTHING_PDATA_TBL VALUES (1,'DM_PAL',
'PAL_FORECASTSINGLESMOOTHING_DATA_T','IN');
INSERT INTO PAL_FORECASTSINGLESMOOTHING_PDATA_TBL VALUES(2,'DM_PAL',
'PAL_CONTROL_T','IN');
INSERT INTO PAL_FORECASTSINGLESMOOTHING_PDATA_TBL VALUES(3,'DM_PAL',
'PAL_OUTPARAMETER_T','OUT');
INSERT INTO PAL_FORECASTSINGLESMOOTHING_PDATA_TBL VALUES(4,'DM_PAL',
'PAL_FORECASTSINGLESMOOTHING_FORECAST_T','OUT');
CALL SYS.AFLLANG_WRAPPER_PROCEDURE_DROP('DM_PAL', 'PALFORECASTSMOOTHING_PROC');
CALL SYS.AFLLANG_WRAPPER_PROCEDURE_CREATE('AFLPAL', 'FORECASTSMOOTHING',
'DM_PAL', 'PALFORECASTSMOOTHING_PROC',PAL_FORECASTSINGLESMOOTHING_PDATA_TBL);
DROP TABLE #PAL_CONTROL_TBL;
CREATE LOCAL TEMPORARY COLUMN TABLE #PAL_CONTROL_TBL ("NAME" VARCHAR(100),
"INTARGS" INT, "DOUBLEARGS" DOUBLE,"STRINGARGS" VARCHAR(100));
INSERT INTO #PAL_CONTROL_TBL VALUES ('FORECAST_MODEL_NAME', NULL, NULL,'SESM');
INSERT INTO #PAL_CONTROL_TBL VALUES ('THREAD_NUMBER',8, NULL, NULL);
INSERT INTO #PAL_CONTROL_TBL VALUES ('ALPHA', NULL,0.1, NULL);
INSERT INTO #PAL_CONTROL_TBL VALUES ('FORECAST_NUM',2, NULL, NULL);
INSERT INTO #PAL_CONTROL_TBL VALUES ('FORECAST_AUTOMATIC',1, NULL, NULL);
INSERT INTO #PAL_CONTROL_TBL VALUES ('MAX_ITERATION',300, NULL, NULL);
DROP TABLE PAL_FORECASTSINGLESMOOTHING_DATA_TBL;
CREATE COLUMN TABLE PAL_FORECASTSINGLESMOOTHING_DATA_TBL LIKE
PAL_FORECASTSINGLESMOOTHING_DATA_T ;
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (1,200.0);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (2,135.0);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (3,195.0);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (4,197.5);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (5,310.0);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (6,175.0);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (7,155.0);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (8,130.0);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (9,220.0);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (10,277.5);
INSERT INTO PAL_FORECASTSINGLESMOOTHING_DATA_TBL VALUES (11,235.0);
DROP TABLE PAL_OUTPARAMETER_TBL;
CREATE COLUMN TABLE PAL_OUTPARAMETER_TBL LIKE PAL_OUTPARAMETER_T ;
DROP TABLE PAL_FORECASTSINGLESMOOTHING_RESULT_TBL;
CREATE COLUMN TABLE PAL_FORECASTSINGLESMOOTHING_RESULT_TBL LIKE
PAL_FORECASTSINGLESMOOTHING_FORECAST_T ;
CALL DM_PAL.PALFORECASTSMOOTHING_PROC( PAL_FORECASTSINGLESMOOTHING_DATA_TBL,
"#PAL_CONTROL_TBL", PAL_OUTPARAMETER_TBL,
PAL_FORECASTSINGLESMOOTHING_RESULT_TBL)WITH OVERVIEW;
SELECT * FROM PAL_OUTPARAMETER_TBL;
SELECT * FROM PAL_FORECASTSINGLESMOOTHING_RESULT_TBL;
Expected Result
376 P U B L I C
SAP HANA Predictive Analysis Library (PAL)
PAL Functions