SAP HANA Predictive Analysis Library (PAL)

Table Column Column Data Type Description
2nd column Double Value of statistics
Example
Assume that:
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DM_PAL is a schema belonging to USER1; and
USER1 has been assigned the AFLPM_CREATOR_ERASER_EXECUTE role; and
USER1 has been assigned the AFL__SYS_AFL_AFLPAL_EXECUTE or
AFL__SYS_AFL_AFLPAL_EXECUTE_WITH_GRANT_OPTION role.
SET SCHEMA DM_PAL;
DROP TYPE PAL_CROSTON_DATA_T;
CREATE TYPE PAL_CROSTON_DATA_T AS TABLE("ID" INT, "RAWDATA" 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_CROSTON_RESULT_T;
CREATE TYPE PAL_CROSTON_RESULT_T AS TABLE("TIME" INT, "OUTPUT" DOUBLE);
DROP TYPE PAL_CROSTON_STATISTICS_T;
CREATE TYPE PAL_CROSTON_STATISTICS_T AS TABLE ("NAME" VARCHAR (50), "VALUE"
DOUBLE);
DROP TABLE PAL_CROSTON_PDATA_TBL;
CREATE COLUMN TABLE PAL_CROSTON_PDATA_TBL ("POSITION" INT,"SCHEMA_NAME"
NVARCHAR(256),"TYPE_NAME" NVARCHAR (256),"PARAMETER_TYPE" VARCHAR (7));
INSERT INTO PAL_CROSTON_PDATA_TBL VALUES (1,'DM_PAL','PAL_CROSTON_DATA_T','IN');
INSERT INTO PAL_CROSTON_PDATA_TBL VALUES (2,'DM_PAL','PAL_CONTROL_T','IN');
INSERT INTO PAL_CROSTON_PDATA_TBL VALUES
(3,'DM_PAL','PAL_CROSTON_RESULT_T','OUT');
INSERT INTO PAL_CROSTON_PDATA_TBL VALUES
(4,'DM_PAL','PAL_CROSTON_STATISTICS_T','OUT');
CALL SYS.AFLLANG_WRAPPER_PROCEDURE_DROP('DM_PAL','CROSTON_TEST_PROC');
CALL SYS.AFLLANG_WRAPPER_PROCEDURE_CREATE('AFLPAL','CROSTON', 'DM_PAL',
'CROSTON_TEST_PROC', PAL_CROSTON_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 ('RAW_DATA_COL',1,NULL,NULL);
INSERT INTO #PAL_CONTROL_TBL VALUES ('ALPHA', NULL,0.1,NULL);
INSERT INTO #PAL_CONTROL_TBL VALUES ('FORECAST_NUM',1, NULL,NULL);
INSERT INTO #PAL_CONTROL_TBL VALUES ('METHOD',0, NULL,NULL);
INSERT INTO #PAL_CONTROL_TBL VALUES('MEASURE_NAME',NULL,NULL,'MAPE');
DROP TABLE PAL_CROSTON_DATA_TBL;
CREATE COLUMN TABLE PAL_CROSTON_DATA_TBL LIKE PAL_CROSTON_DATA_T ;
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (0, 0.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (1, 1.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (2, 4.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (3, 0.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (4, 0.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (5, 0.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (6, 5.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (7, 3.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (8, 0.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (9, 0.0);
INSERT INTO PAL_CROSTON_DATA_TBL VALUES (10, 0.0);
DROP TABLE PAL_CROSTON_RESULT_TBL;
CREATE COLUMN TABLE PAL_CROSTON_RESULT_TBL LIKE PAL_CROSTON_RESULT_T;
DROP TABLE PAL_CROSTON_STATISTICS_TBL;
CREATE COLUMN TABLE PAL_CROSTON_STATISTICS_TBL LIKE PAL_CROSTON_STATISTICS_T;
CALL DM_PAL.CROSTON_TEST_PROC(PAL_CROSTON_DATA_TBL, "#PAL_CONTROL_TBL",
PAL_CROSTON_RESULT_TBL, PAL_CROSTON_STATISTICS_TBL) WITH OVERVIEW;
SELECT * FROM PAL_CROSTON_RESULT_TBL;
364 P U B L I C
SAP HANA Predictive Analysis Library (PAL)
PAL Functions