ABAP Select data from SAP table COMS_GOX_TABLEINFO into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP COMS_GOX_TABLEINFO table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to COMS_GOX_TABLEINFO. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the COMS_GOX_TABLEINFO table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_COMS_GOX_TABLEINFO TYPE STANDARD TABLE OF COMS_GOX_TABLEINFO,
      WA_COMS_GOX_TABLEINFO TYPE COMS_GOX_TABLEINFO,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <COMS_GOX_TABLEINFO> TYPE COMS_GOX_TABLEINFO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_COMS_GOX_TABLEINFO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM COMS_GOX_TABLEINFO
  INTO TABLE IT_COMS_GOX_TABLEINFO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COMS_GOX_TABLEINFO
*  INTO TABLE @DATA(IT_COMS_GOX_TABLEINFO2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_COMS_GOX_TABLEINFO INDEX 1 INTO DATA(WA_COMS_GOX_TABLEINFO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_COMS_GOX_TABLEINFO ASSIGNING <COMS_GOX_TABLEINFO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COMS_GOX_TABLEINFO>-TABNAME = 1.
<COMS_GOX_TABLEINFO>-TABCLASS = 1.
<COMS_GOX_TABLEINFO>-TABKAT = 1.
<COMS_GOX_TABLEINFO>-TABART = 1.
<COMS_GOX_TABLEINFO>-CONTFLAG = 1.

ENDLOOP.

LOOP AT IT_COMS_GOX_TABLEINFO INTO WA_COMS_GOX_TABLEINFO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COMS_GOX_TABLEINFO-BUFALLOW, sy-vline,
  WA_COMS_GOX_TABLEINFO-PUFFERUNG, sy-vline,
  WA_COMS_GOX_TABLEINFO-LANGDEP, sy-vline,
  WA_COMS_GOX_TABLEINFO-DDLANGUAGE, sy-vline,
  WA_COMS_GOX_TABLEINFO-DDTEXT, sy-vline,
  WA_COMS_GOX_TABLEINFO-AS4DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COMS_GOX_TABLEINFO you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_COMS_GOX_TABLEINFO TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_COMS_GOX_TABLEINFO INTO WA_COMS_GOX_TABLEINFO.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ISOLA, internal->external for field DDLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_COMS_GOX_TABLEINFO-DDLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COMS_GOX_TABLEINFO-DDLANGUAGE.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_COMS_GOX_TABLEINFO_STR, 
TABNAME TYPE STRING,
TABCLASS TYPE STRING,
TABKAT TYPE STRING,
TABART TYPE STRING,
CONTFLAG TYPE STRING,
BUFALLOW TYPE STRING,
PUFFERUNG TYPE STRING,
LANGDEP TYPE STRING,
DDLANGUAGE TYPE STRING,
DDTEXT TYPE STRING,
AS4DATE TYPE STRING,
AS4TIME TYPE STRING,
AS4USER TYPE STRING,
SQLTAB TYPE STRING,
FIELDINFO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COMS_GOX_TABLEINFO_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_COMS_GOX_TABLEINFO_STR-TABNAME sy-vline 
WA_COMS_GOX_TABLEINFO_STR-TABCLASS sy-vline 
WA_COMS_GOX_TABLEINFO_STR-TABKAT sy-vline 
WA_COMS_GOX_TABLEINFO_STR-TABART sy-vline 
WA_COMS_GOX_TABLEINFO_STR-CONTFLAG sy-vline 
WA_COMS_GOX_TABLEINFO_STR-BUFALLOW sy-vline 
WA_COMS_GOX_TABLEINFO_STR-PUFFERUNG sy-vline 
WA_COMS_GOX_TABLEINFO_STR-LANGDEP sy-vline 
WA_COMS_GOX_TABLEINFO_STR-DDLANGUAGE sy-vline 
WA_COMS_GOX_TABLEINFO_STR-DDTEXT sy-vline 
WA_COMS_GOX_TABLEINFO_STR-AS4DATE sy-vline 
WA_COMS_GOX_TABLEINFO_STR-AS4TIME sy-vline 
WA_COMS_GOX_TABLEINFO_STR-AS4USER sy-vline 
WA_COMS_GOX_TABLEINFO_STR-SQLTAB sy-vline 
WA_COMS_GOX_TABLEINFO_STR-FIELDINFO sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.