ABAP Select data from SAP table THISTORYEDIT 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 THISTORYEDIT 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 THISTORYEDIT. 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 THISTORYEDIT 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_THISTORYEDIT TYPE STANDARD TABLE OF THISTORYEDIT,
      WA_THISTORYEDIT TYPE THISTORYEDIT,
      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: <THISTORYEDIT> TYPE THISTORYEDIT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM THISTORYEDIT
*  INTO TABLE @DATA(IT_THISTORYEDIT2).
*--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_THISTORYEDIT INDEX 1 INTO DATA(WA_THISTORYEDIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<THISTORYEDIT>-MANDT = 1.
<THISTORYEDIT>-PSNAME = 1.
<THISTORYEDIT>-PSDATE = 1.
<THISTORYEDIT>-PSTIME = 1.
<THISTORYEDIT>-PSZONE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_THISTORYEDIT-PSTCODE, sy-vline,
  WA_THISTORYEDIT-PSCOUNT, sy-vline,
  WA_THISTORYEDIT-PSFIELD, sy-vline,
  WA_THISTORYEDIT-PS_VALUE_OLD, sy-vline,
  WA_THISTORYEDIT-PS_VALUE_NEW, sy-vline,
  WA_THISTORYEDIT-PSFIELD2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_THISTORYEDIT 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_THISTORYEDIT 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_THISTORYEDIT INTO WA_THISTORYEDIT.


*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_THISTORYEDIT_STR, 
MANDT TYPE STRING,
PSNAME TYPE STRING,
PSDATE TYPE STRING,
PSTIME TYPE STRING,
PSZONE TYPE STRING,
PSTCODE TYPE STRING,
PSCOUNT TYPE STRING,
PSFIELD TYPE STRING,
PS_VALUE_OLD TYPE STRING,
PS_VALUE_NEW TYPE STRING,
PSFIELD2 TYPE STRING,
PS_VALUE_OLD2 TYPE STRING,
PS_VALUE_NEW2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_THISTORYEDIT_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_THISTORYEDIT_STR-MANDT sy-vline 
WA_THISTORYEDIT_STR-PSNAME sy-vline 
WA_THISTORYEDIT_STR-PSDATE sy-vline 
WA_THISTORYEDIT_STR-PSTIME sy-vline 
WA_THISTORYEDIT_STR-PSZONE sy-vline 
WA_THISTORYEDIT_STR-PSTCODE sy-vline 
WA_THISTORYEDIT_STR-PSCOUNT sy-vline 
WA_THISTORYEDIT_STR-PSFIELD sy-vline 
WA_THISTORYEDIT_STR-PS_VALUE_OLD sy-vline 
WA_THISTORYEDIT_STR-PS_VALUE_NEW sy-vline 
WA_THISTORYEDIT_STR-PSFIELD2 sy-vline 
WA_THISTORYEDIT_STR-PS_VALUE_OLD2 sy-vline 
WA_THISTORYEDIT_STR-PS_VALUE_NEW2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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