I am trying to split internal table to smaller chunks.
In below example the internal table big_table is split into small tables.
My question is how do we get the actual data from lt_small_tables for further processing.
TYPES: BEGIN OF lty_line,
column1 TYPE i,
column2 TYPE c LENGTH 4,
END OF lty_line.
CONSTANTS: lc_test_data_amount TYPE i VALUE 44,
lc_split_at_amount TYPE i VALUE 7,
DATA: lt_big_table TYPE STANDARD TABLE OF lty_line,
lv_string TYPE string,
lt_small_tables TYPE STANDARD TABLE OF REF TO data,
lr_small_table TYPE REF TO data.
FIELD-SYMBOLS: <lg_target> TYPE STANDARD TABLE.
" Generate test data
DO lc_test_data_amount TIMES.
CALL FUNCTION 'GENERAL_GET_RANDOM_STRING'
EXPORTING number_chars = 4 " Specifies the number of generated chars
IMPORTING random_string = lv_string. " Generated string
APPEND VALUE #( column1 = sy-index
column2 = CONV #( lv_string ) ) TO lt_big_table.
ENDDO.
" Split
DATA(lo_descr) = CAST cl_abap_tabledescr(
cl_abap_typedescr=>describe_by_data( lt_big_table ) ).
LOOP AT lt_big_table ASSIGNING FIELD-SYMBOL(<ls_line>).
IF ( sy-tabix - 1 ) MOD lc_split_at_amount = 0.
CREATE DATA lr_small_table TYPE HANDLE lo_descr.
ASSERT lr_small_table IS BOUND.
APPEND lr_small_table TO lt_small_tables.
ASSIGN lr_small_table->* TO <lg_target>.
ASSERT <lg_target> IS ASSIGNED.
ENDIF.
APPEND <ls_line> TO <lg_target>.
ENDLOOP.
Thanks, Kris
There are at least a couple of ways
Solution 1: cast internal table reference into a known type, so that you can directly access its fields.
FIELD-SYMBOLS: <fs_table> like lt_big_table.
LOOP AT lt_small_tables into lr_small_table.
ASSIGN lr_small_table->* TO <fs_table>.
ASSERT <fs_table> IS ASSIGNED.
LOOP AT <fs_table> into data(ls_line).
" do something with line
write: / ls_line-column1, ls_line-column2.
ENDLOOP.
ENDLOOP.
Solution 2: dynamic access to the tables fields
FIELD-SYMBOLS: <generic_fs_table> TYPE ANY TABLE.
LOOP AT lt_small_tables into lr_small_table.
ASSIGN lr_small_table->* TO <generic_fs_table>.
ASSERT sy-subrc = 0.
LOOP AT <generic_fs_table> ASSIGNING FIELD-SYMBOL(<generic_fs_line>).
" dinamically access to line fields
ASSIGN COMPONENT 'COLUMN1' of STRUCTURE <generic_fs_line> to FIELD-SYMBOL(<generic_fs_field1>).
ASSERT sy-subrc = 0.
ASSIGN COMPONENT 'COLUMN2' of STRUCTURE <generic_fs_line> to FIELD-SYMBOL(<generic_fs_field2>).
ASSERT sy-subrc = 0.
" do something with component2
write: / <generic_fs_field1>, <generic_fs_field2>.
ENDLOOP.
ENDLOOP.