ABAP Select data from SAP table EGRIDALL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EGRIDALL 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 EGRIDALL. 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 EGRIDALL 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_EGRIDALL TYPE STANDARD TABLE OF EGRIDALL,
      WA_EGRIDALL TYPE EGRIDALL,
      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: <EGRIDALL> TYPE EGRIDALL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EGRIDALL
*  INTO TABLE @DATA(IT_EGRIDALL2).
*--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_EGRIDALL INDEX 1 INTO DATA(WA_EGRIDALL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EGRIDALL>-MANDT = 1.
<EGRIDALL>-GRID_ID = 1.
<EGRIDALL>-SUP_GRID_ID = 1.
<EGRIDALL>-SPARTYP = 1.
<EGRIDALL>-GRID_LEVEL_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EGRIDALL-EXTERNALID, sy-vline,
  WA_EGRIDALL-EXT_CODELISTID, sy-vline,
  WA_EGRIDALL-INT_UI, sy-vline,
  WA_EGRIDALL-SPRAS, sy-vline,
  WA_EGRIDALL-GRID_NAME, sy-vline,
  WA_EGRIDALL-BIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EGRIDALL 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_EGRIDALL 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_EGRIDALL INTO WA_EGRIDALL.


*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 SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_EGRIDALL-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EGRIDALL-SPRAS.
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_EGRIDALL_STR, 
MANDT TYPE STRING,
GRID_ID TYPE STRING,
SUP_GRID_ID TYPE STRING,
SPARTYP TYPE STRING,
GRID_LEVEL_TYPE TYPE STRING,
EXTERNALID TYPE STRING,
EXT_CODELISTID TYPE STRING,
INT_UI TYPE STRING,
SPRAS TYPE STRING,
GRID_NAME TYPE STRING,
BIS TYPE STRING,
AB TYPE STRING,
DISTRIBUTOR TYPE STRING,
SETTLCOORD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EGRIDALL_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_EGRIDALL_STR-MANDT sy-vline 
WA_EGRIDALL_STR-GRID_ID sy-vline 
WA_EGRIDALL_STR-SUP_GRID_ID sy-vline 
WA_EGRIDALL_STR-SPARTYP sy-vline 
WA_EGRIDALL_STR-GRID_LEVEL_TYPE sy-vline 
WA_EGRIDALL_STR-EXTERNALID sy-vline 
WA_EGRIDALL_STR-EXT_CODELISTID sy-vline 
WA_EGRIDALL_STR-INT_UI sy-vline 
WA_EGRIDALL_STR-SPRAS sy-vline 
WA_EGRIDALL_STR-GRID_NAME sy-vline 
WA_EGRIDALL_STR-BIS sy-vline 
WA_EGRIDALL_STR-AB sy-vline 
WA_EGRIDALL_STR-DISTRIBUTOR sy-vline 
WA_EGRIDALL_STR-SETTLCOORD sy-vline      INTO ld_text SEPARATED BY SPACE.

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