ABAP Select data from SAP table EDI_Z1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EDI_Z1 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 EDI_Z1. 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 EDI_Z1 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_EDI_Z1 TYPE STANDARD TABLE OF EDI_Z1,
      WA_EDI_Z1 TYPE EDI_Z1,
      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: <EDI_Z1> TYPE EDI_Z1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EDI_Z1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EDI_Z1
  INTO TABLE IT_EDI_Z1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDI_Z1
*  INTO TABLE @DATA(IT_EDI_Z12).
*--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_EDI_Z1 INDEX 1 INTO DATA(WA_EDI_Z12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EDI_Z1 ASSIGNING <EDI_Z1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDI_Z1>-BELNK = 1.
<EDI_Z1>-ANGNR = 1.
<EDI_Z1>-AUFNR = 1.
<EDI_Z1>-VTRNR = 1.
<EDI_Z1>-ACTION = 1.

ENDLOOP.

LOOP AT IT_EDI_Z1 INTO WA_EDI_Z1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDI_Z1-BSART, sy-vline,
  WA_EDI_Z1-KZABS, sy-vline,
  WA_EDI_Z1-DATUM, sy-vline,
  WA_EDI_Z1-VDATU, sy-vline,
  WA_EDI_Z1-BWBDT, sy-vline,
  WA_EDI_Z1-ANGAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDI_Z1 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_EDI_Z1 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_EDI_Z1 INTO WA_EDI_Z1.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_EDI_Z1_STR, 
BELNK TYPE STRING,
ANGNR TYPE STRING,
AUFNR TYPE STRING,
VTRNR TYPE STRING,
ACTION TYPE STRING,
BSART TYPE STRING,
KZABS TYPE STRING,
DATUM TYPE STRING,
VDATU TYPE STRING,
BWBDT TYPE STRING,
ANGAB TYPE STRING,
ANGDT TYPE STRING,
BNDDT TYPE STRING,
SUBMI TYPE STRING,
CURCY TYPE STRING,
WKURS TYPE STRING,
ZTERM TYPE STRING,
ZBD1T TYPE STRING,
ZBD1P TYPE STRING,
ZBD2T TYPE STRING,
ZBD2P TYPE STRING,
ZBD3T TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDI_Z1_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_EDI_Z1_STR-BELNK sy-vline 
WA_EDI_Z1_STR-ANGNR sy-vline 
WA_EDI_Z1_STR-AUFNR sy-vline 
WA_EDI_Z1_STR-VTRNR sy-vline 
WA_EDI_Z1_STR-ACTION sy-vline 
WA_EDI_Z1_STR-BSART sy-vline 
WA_EDI_Z1_STR-KZABS sy-vline 
WA_EDI_Z1_STR-DATUM sy-vline 
WA_EDI_Z1_STR-VDATU sy-vline 
WA_EDI_Z1_STR-BWBDT sy-vline 
WA_EDI_Z1_STR-ANGAB sy-vline 
WA_EDI_Z1_STR-ANGDT sy-vline 
WA_EDI_Z1_STR-BNDDT sy-vline 
WA_EDI_Z1_STR-SUBMI sy-vline 
WA_EDI_Z1_STR-CURCY sy-vline 
WA_EDI_Z1_STR-WKURS sy-vline 
WA_EDI_Z1_STR-ZTERM sy-vline 
WA_EDI_Z1_STR-ZBD1T sy-vline 
WA_EDI_Z1_STR-ZBD1P sy-vline 
WA_EDI_Z1_STR-ZBD2T sy-vline 
WA_EDI_Z1_STR-ZBD2P sy-vline 
WA_EDI_Z1_STR-ZBD3T sy-vline 
WA_EDI_Z1_STR-INCO1 sy-vline 
WA_EDI_Z1_STR-INCO2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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