ABAP Select data from SAP table E1ISU34 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 E1ISU34 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 E1ISU34. 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 E1ISU34 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_E1ISU34 TYPE STANDARD TABLE OF E1ISU34,
      WA_E1ISU34 TYPE E1ISU34,
      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: <E1ISU34> TYPE E1ISU34.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1ISU34.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1ISU34
  INTO TABLE IT_E1ISU34.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1ISU34
*  INTO TABLE @DATA(IT_E1ISU342).
*--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_E1ISU34 INDEX 1 INTO DATA(WA_E1ISU342).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1ISU34 ASSIGNING <E1ISU34>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1ISU34>-ABLBELNR = 1.
<E1ISU34>-ZWSTAND = 1.
<E1ISU34>-ABLHINW = 1.
<E1ISU34>-ABLESART = 1.
<E1ISU34>-ABLESER = 1.

ENDLOOP.

LOOP AT IT_E1ISU34 INTO WA_E1ISU34.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1ISU34-ADAT, sy-vline,
  WA_E1ISU34-ATIM, sy-vline,
  WA_E1ISU34-ADATTATS, sy-vline,
  WA_E1ISU34-ATIMTATS, sy-vline,
  WA_E1ISU34-ADATMAX, sy-vline,
  WA_E1ISU34-ATIMMAX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1ISU34 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_E1ISU34 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_E1ISU34 INTO WA_E1ISU34.


*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_E1ISU34_STR, 
ABLBELNR TYPE STRING,
ZWSTAND TYPE STRING,
ABLHINW TYPE STRING,
ABLESART TYPE STRING,
ABLESER TYPE STRING,
ADAT TYPE STRING,
ATIM TYPE STRING,
ADATTATS TYPE STRING,
ATIMTATS TYPE STRING,
ADATMAX TYPE STRING,
ATIMMAX TYPE STRING,
AUFNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1ISU34_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_E1ISU34_STR-ABLBELNR sy-vline 
WA_E1ISU34_STR-ZWSTAND sy-vline 
WA_E1ISU34_STR-ABLHINW sy-vline 
WA_E1ISU34_STR-ABLESART sy-vline 
WA_E1ISU34_STR-ABLESER sy-vline 
WA_E1ISU34_STR-ADAT sy-vline 
WA_E1ISU34_STR-ATIM sy-vline 
WA_E1ISU34_STR-ADATTATS sy-vline 
WA_E1ISU34_STR-ATIMTATS sy-vline 
WA_E1ISU34_STR-ADATMAX sy-vline 
WA_E1ISU34_STR-ATIMMAX sy-vline 
WA_E1ISU34_STR-AUFNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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