--SAP HANA 1.0 SP12 revision 122.04 and SAP HANA 2.0 and onwards:
./hdblcm --action=update_components --component_dirs=<Extracted_APL_folder_path>/installer
--SAP HANA 1.0 SP12 revision 122.07:
./hdblcm --action=update --component_dirs=<Extracted_APL_folder_path>/installer

Note

    Use the resident lifecycle management tool of SAP HANA hdblcm or hdblcmgui.
    Purge the cache after reinstallation or upgrade.

call "SAP_PA_APL"."sap.pa.apl.base::CLEANUP"(1,?);

-- check that APL functions are there

select * from "SYS"."AFL_AREAS";
select * from "SYS"."AFL_PACKAGES";
select * from "SYS"."AFL_FUNCTIONS" where AREA_NAME=‘APL_AREA‘;
select "F"."SCHEMA_NAME", "A"."AREA_NAME", "F"."FUNCTION_NAME", "F"."NO_INPUT_PARAMS", "F"."NO_OUTPUT_PARAMS", "F"."FUNCTION_TYPE", "F"."BUSINESS_CATEGORY_NAME"     
from "SYS"."AFL_FUNCTIONS_" F,"SYS"."AFL_AREAS" A  where "A"."AREA_NAME"=‘APL_AREA‘ and "A"."AREA_OID" = "F"."AREA_OID";
select * from "SYS"."AFL_FUNCTION_PARAMETERS" where AREA_NAME=‘APL_AREA‘;