ABAP Select data from SAP table E1EDT45 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 E1EDT45 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 E1EDT45. 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 E1EDT45 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_E1EDT45 TYPE STANDARD TABLE OF E1EDT45,
      WA_E1EDT45 TYPE E1EDT45,
      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: <E1EDT45> TYPE E1EDT45.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1EDT45.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1EDT45
  INTO TABLE IT_E1EDT45.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1EDT45
*  INTO TABLE @DATA(IT_E1EDT452).
*--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_E1EDT45 INDEX 1 INTO DATA(WA_E1EDT452).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1EDT45 ASSIGNING <E1EDT45>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1EDT45>-QUALF = 1.
<E1EDT45>-NTANF = 1.
<E1EDT45>-NTANZ = 1.
<E1EDT45>-NTEND = 1.
<E1EDT45>-NTENZ = 1.

ENDLOOP.

LOOP AT IT_E1EDT45 INTO WA_E1EDT45.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1EDT45-ISDD, sy-vline,
  WA_E1EDT45-ISDZ, sy-vline,
  WA_E1EDT45-IEDD, sy-vline,
  WA_E1EDT45-IEDZ, sy-vline,
  WA_E1EDT45-VORNR, sy-vline,
  WA_E1EDT45-VSTGA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1EDT45 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_E1EDT45 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_E1EDT45 INTO WA_E1EDT45.


*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_E1EDT45_STR, 
QUALF TYPE STRING,
NTANF TYPE STRING,
NTANZ TYPE STRING,
NTEND TYPE STRING,
NTENZ TYPE STRING,
ISDD TYPE STRING,
ISDZ TYPE STRING,
IEDD TYPE STRING,
IEDZ TYPE STRING,
VORNR TYPE STRING,
VSTGA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1EDT45_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_E1EDT45_STR-QUALF sy-vline 
WA_E1EDT45_STR-NTANF sy-vline 
WA_E1EDT45_STR-NTANZ sy-vline 
WA_E1EDT45_STR-NTEND sy-vline 
WA_E1EDT45_STR-NTENZ sy-vline 
WA_E1EDT45_STR-ISDD sy-vline 
WA_E1EDT45_STR-ISDZ sy-vline 
WA_E1EDT45_STR-IEDD sy-vline 
WA_E1EDT45_STR-IEDZ sy-vline 
WA_E1EDT45_STR-VORNR sy-vline 
WA_E1EDT45_STR-VSTGA sy-vline      INTO ld_text SEPARATED BY SPACE.

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