ABAP Select data from SAP table SEPMRAIPDREVPOST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SEPMRAIPDREVPOST
*  INTO TABLE @DATA(IT_SEPMRAIPDREVPOST2).
*--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_SEPMRAIPDREVPOST INDEX 1 INTO DATA(WA_SEPMRAIPDREVPOST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SEPMRAIPDREVPOST>-MANDT = 1.
<SEPMRAIPDREVPOST>-PRODUCTREVIEWPOSTUUID = 1.
<SEPMRAIPDREVPOST>-PRODUCTREVIEWUUID = 1.
<SEPMRAIPDREVPOST>-REVIEWDATETIME = 1.
<SEPMRAIPDREVPOST>-REVIEWDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SEPMRAIPDREVPOST-REVIEWRATINGVALUE, sy-vline,
  WA_SEPMRAIPDREVPOST-REVIEWPOSTTITLE, sy-vline,
  WA_SEPMRAIPDREVPOST-REVIEWPOSTTEXT, sy-vline,
  WA_SEPMRAIPDREVPOST-NUMBEROFAFFIRMATIVEANSWERS, sy-vline,
  WA_SEPMRAIPDREVPOST-TOTALNUMBEROFANSWERS, sy-vline,
  WA_SEPMRAIPDREVPOST-CONTACTPERSON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SEPMRAIPDREVPOST 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_SEPMRAIPDREVPOST 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_SEPMRAIPDREVPOST INTO WA_SEPMRAIPDREVPOST.


*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 ALPHA, internal->external for field CONTACTPERSON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SEPMRAIPDREVPOST-CONTACTPERSON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SEPMRAIPDREVPOST-CONTACTPERSON.
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_SEPMRAIPDREVPOST_STR, 
MANDT TYPE STRING,
PRODUCTREVIEWPOSTUUID TYPE STRING,
PRODUCTREVIEWUUID TYPE STRING,
REVIEWDATETIME TYPE STRING,
REVIEWDATE TYPE STRING,
REVIEWRATINGVALUE TYPE STRING,
REVIEWPOSTTITLE TYPE STRING,
REVIEWPOSTTEXT TYPE STRING,
NUMBEROFAFFIRMATIVEANSWERS TYPE STRING,
TOTALNUMBEROFANSWERS TYPE STRING,
CONTACTPERSON TYPE STRING,
CONTACTPERSONUSERNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SEPMRAIPDREVPOST_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_SEPMRAIPDREVPOST_STR-MANDT sy-vline 
WA_SEPMRAIPDREVPOST_STR-PRODUCTREVIEWPOSTUUID sy-vline 
WA_SEPMRAIPDREVPOST_STR-PRODUCTREVIEWUUID sy-vline 
WA_SEPMRAIPDREVPOST_STR-REVIEWDATETIME sy-vline 
WA_SEPMRAIPDREVPOST_STR-REVIEWDATE sy-vline 
WA_SEPMRAIPDREVPOST_STR-REVIEWRATINGVALUE sy-vline 
WA_SEPMRAIPDREVPOST_STR-REVIEWPOSTTITLE sy-vline 
WA_SEPMRAIPDREVPOST_STR-REVIEWPOSTTEXT sy-vline 
WA_SEPMRAIPDREVPOST_STR-NUMBEROFAFFIRMATIVEANSWERS sy-vline 
WA_SEPMRAIPDREVPOST_STR-TOTALNUMBEROFANSWERS sy-vline 
WA_SEPMRAIPDREVPOST_STR-CONTACTPERSON sy-vline 
WA_SEPMRAIPDREVPOST_STR-CONTACTPERSONUSERNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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