Passing data into dynamic internal table

[Former Member]

Hi Experts,

I have created an dynamic internal table using:

   CALL METHOD cl_alv_table_create=>create_dynamic_table
    EXPORTING
      it_fieldcatalog  =    C_fieldcat
      i_length_in_byte = 'X'

    IMPORTING
      ep_table             = gt_DTAB.

Then I do the following steps:

ASSIGN gt_DTAB->* TO <gf_table>.
CREATE DATA ly_line LIKE LINE OF <gf_table>.
ASSIGN ly_line->* to <fs_tb>.

Q.1 Now my requirment is to read data into <gf_table> from a database table which have few fields different from <gf_table>.

I tired reading the data into an internal table from database table then passing to <gf_table>, but its not working:

LOOP AT gt_001 INTO lwa_001.
   ASSIGN COMPONENT sy-index OF STRUCTURE lwa_001 to <fs_tb>.

   MOVE-CORRESPONDING <fs_tb> to <gf_table>.

ENDLOOP.

Q.2 Also, I need to declare an internal table say LT_001 which should have the structure same as <gf_table> , how can I achieve this.

Thanks in advance for your inputs.

BR.

[matt]

If you loop through gt_001, then you're looping through the records not the fields. Somewhere, you must have defined the names of the field. Use those with ASSIGN COMPONENT fieldname OF STRUCTURE TO <field>.

Second is easy.

DATA: lr_data TYPE REF TO DATA.

FIELD-SYMBOLS: <newtable> TYPE STANDARD TABLE.

CREATE DATA lr_data LIKE <gf_table>.

ASSIGN lr_data->* TO <newtable>.

[Former Member]

Hi Matthew,

I appreciate your response.

Please note:

1. Gt_001 contains data (eg. 20 rows and 18 columns) which I want to pass to corresponding column of my dynamic table <gf_table> (eg. 21 columns). Please guide how can I achieve this.

2. The code which you mention creates an field-symbol <newtable> which is table type and have structure as <gf_table>, but I need to create an internal table like one we create with statement: DATA ITAB TYPE STANDARD TABLE OF ST_STRUCTURE.

BR.

[matt]

1)

CREATE DATA lr_data LIKE LINE OF <secondtab>.

ASSIGN <lr_data>->* TO <secondwa>.

LOOP AT <firsttab> ASSIGNING <firstwa>.

  MOVE-CORRESPONDING <firstwa> TO <secondwa>.

  INSERT <secondwa> INTO TABLE <secondtab>.

ENDLOOP.

2)

TYPES: t_newtab_ty TYPE STANDARD TABLE OF st_structure WITH DEFAULT KEY.

FIELD-SYMBOLS: <newtable> TYPE t_newtab_ty.

CREATE DATA lr_data TYPE t_newtab_ty.

ASSIGN lr_data->* TO <newtable>.

Just think things through logically. How can I get to where I want to be from what I have?