直接取HANA数据库数据，动态QUERY

"COPY别人的
TYPE-POOLS:ADBC.

DATA LV_SQL TYPE STRING.
DATA LV_FROM TYPE STRING.
DATA LV_WHERE TYPE STRING.
DATA LV_WHERE2 TYPE STRING.
DATA LV_WHERE3 TYPE STRING.
DATA : V_ROWS TYPE I.
DATA : LT_META   TYPE ADBC_RS_METADATA_DESCR_TAB,
       LT_COLUMN TYPE ADBC_COLUMN_TAB,
       LS_META   LIKE LINE OF LT_META,
       LS_COLUMN LIKE LINE OF LT_COLUMN.

*Define variables for the connection
DATA: LR_DBCONN     TYPE REF TO CL_SQL_CONNECTION,
      LV_CON        TYPE DBCON_NAME VALUE 'HDB',
      LR_SQL_ENV    TYPE REF TO CL_SQL_STATEMENT,
      LR_SQL_RESULT TYPE REF TO CL_SQL_RESULT_SET,
      LR_SQL_EXC    TYPE REF TO CX_SQL_EXCEPTION,           "#EC NEEDED
      LR_PAR_EXC    TYPE REF TO CX_PARAMETER_INVALID,       "#EC NEEDED
      DREF          TYPE REF TO DATA,
      TAB_REF       TYPE REF TO DATA,
      GT_COMPONENTS TYPE CL_ABAP_STRUCTDESCR=>COMPONENT_TABLE,
      GS_COMPONENTS LIKE LINE OF GT_COMPONENTS.
FIELD-SYMBOLS : <TABLE> TYPE ANY TABLE,
                <STR>   TYPE ANY.

*Get connection
LR_DBCONN = CL_SQL_CONNECTION=>GET_CONNECTION( CON_NAME = LV_CON ).
CREATE OBJECT LR_SQL_ENV
  EXPORTING
    CON_REF = LR_DBCONN.

LV_SQL = 'SELECT * FROM ZLYTEST01'.


LR_SQL_RESULT = LR_SQL_ENV->EXECUTE_QUERY( LV_SQL ).
LT_META = LR_SQL_RESULT->GET_METADATA( ).

LOOP AT LT_META INTO LS_META.
  LS_COLUMN = LS_META-COLUMN_NAME.
  APPEND LS_COLUMN TO LT_COLUMN.
  GS_COMPONENTS-NAME = LS_META-COLUMN_NAME.
  GS_COMPONENTS-TYPE ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( P_DATA = LS_META-DATA_TYPE ).
  APPEND GS_COMPONENTS TO GT_COMPONENTS.
ENDLOOP.

DATA LR_TABLEDESCR TYPE REF TO CL_ABAP_TABLEDESCR.

LR_TABLEDESCR = CL_ABAP_TABLEDESCR=>CREATE(
P_LINE_TYPE  = CL_ABAP_STRUCTDESCR=>CREATE( P_COMPONENTS = GT_COMPONENTS ) ).

CREATE DATA TAB_REF TYPE HANDLE LR_TABLEDESCR.

*  get REFERENCE OF LT_DATA INTO tab_ref.
LR_SQL_RESULT->SET_PARAM_TABLE(
  EXPORTING
    ITAB_REF             =  TAB_REF   " Reference to Output Variable
    CORRESPONDING_FIELDS = LT_COLUMN ).

**Execute the query
LR_SQL_RESULT->NEXT_PACKAGE( ).
V_ROWS = LR_SQL_RESULT->NEXT( ).

ASSIGN TAB_REF->* TO <TABLE>.