ABAP Select data from SAP table MERE_OUTTAB_ME3P 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 MERE_OUTTAB_ME3P 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 MERE_OUTTAB_ME3P. 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 MERE_OUTTAB_ME3P 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_MERE_OUTTAB_ME3P TYPE STANDARD TABLE OF MERE_OUTTAB_ME3P,
      WA_MERE_OUTTAB_ME3P TYPE MERE_OUTTAB_ME3P,
      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: <MERE_OUTTAB_ME3P> TYPE MERE_OUTTAB_ME3P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MERE_OUTTAB_ME3P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MERE_OUTTAB_ME3P
  INTO TABLE IT_MERE_OUTTAB_ME3P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MERE_OUTTAB_ME3P
*  INTO TABLE @DATA(IT_MERE_OUTTAB_ME3P2).
*--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_MERE_OUTTAB_ME3P INDEX 1 INTO DATA(WA_MERE_OUTTAB_ME3P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MERE_OUTTAB_ME3P ASSIGNING <MERE_OUTTAB_ME3P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MERE_OUTTAB_ME3P>-EBELN = 1.
<MERE_OUTTAB_ME3P>-BSART = 1.
<MERE_OUTTAB_ME3P>-LIFNR = 1.
<MERE_OUTTAB_ME3P>-NAME1 = 1.
<MERE_OUTTAB_ME3P>-EKGRP = 1.

ENDLOOP.

LOOP AT IT_MERE_OUTTAB_ME3P INTO WA_MERE_OUTTAB_ME3P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MERE_OUTTAB_ME3P-BEDAT, sy-vline,
  WA_MERE_OUTTAB_ME3P-EBELP, sy-vline,
  WA_MERE_OUTTAB_ME3P-MATNR, sy-vline,
  WA_MERE_OUTTAB_ME3P-MATKL, sy-vline,
  WA_MERE_OUTTAB_ME3P-TXZ01, sy-vline,
  WA_MERE_OUTTAB_ME3P-NETPR_OLD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MERE_OUTTAB_ME3P 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_MERE_OUTTAB_ME3P 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_MERE_OUTTAB_ME3P INTO WA_MERE_OUTTAB_ME3P.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MERE_OUTTAB_ME3P-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MERE_OUTTAB_ME3P-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MERE_OUTTAB_ME3P-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MERE_OUTTAB_ME3P-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MERE_OUTTAB_ME3P-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MERE_OUTTAB_ME3P-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME_OLD
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MERE_OUTTAB_ME3P-BPRME_OLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MERE_OUTTAB_ME3P-BPRME_OLD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME_NEW
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MERE_OUTTAB_ME3P-BPRME_NEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MERE_OUTTAB_ME3P-BPRME_NEW.
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_MERE_OUTTAB_ME3P_STR, 
EBELN TYPE STRING,
BSART TYPE STRING,
LIFNR TYPE STRING,
NAME1 TYPE STRING,
EKGRP TYPE STRING,
BEDAT TYPE STRING,
EBELP TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
TXZ01 TYPE STRING,
NETPR_OLD TYPE STRING,
WAERS_OLD TYPE STRING,
PEINH_OLD TYPE STRING,
BPRME_OLD TYPE STRING,
NETPR_NEW TYPE STRING,
WAERS_NEW TYPE STRING,
PEINH_NEW TYPE STRING,
BPRME_NEW TYPE STRING,
TEXT_NEW TYPE STRING,
AZEKORG TYPE STRING,
STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MERE_OUTTAB_ME3P_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_MERE_OUTTAB_ME3P_STR-EBELN sy-vline 
WA_MERE_OUTTAB_ME3P_STR-BSART sy-vline 
WA_MERE_OUTTAB_ME3P_STR-LIFNR sy-vline 
WA_MERE_OUTTAB_ME3P_STR-NAME1 sy-vline 
WA_MERE_OUTTAB_ME3P_STR-EKGRP sy-vline 
WA_MERE_OUTTAB_ME3P_STR-BEDAT sy-vline 
WA_MERE_OUTTAB_ME3P_STR-EBELP sy-vline 
WA_MERE_OUTTAB_ME3P_STR-MATNR sy-vline 
WA_MERE_OUTTAB_ME3P_STR-MATKL sy-vline 
WA_MERE_OUTTAB_ME3P_STR-TXZ01 sy-vline 
WA_MERE_OUTTAB_ME3P_STR-NETPR_OLD sy-vline 
WA_MERE_OUTTAB_ME3P_STR-WAERS_OLD sy-vline 
WA_MERE_OUTTAB_ME3P_STR-PEINH_OLD sy-vline 
WA_MERE_OUTTAB_ME3P_STR-BPRME_OLD sy-vline 
WA_MERE_OUTTAB_ME3P_STR-NETPR_NEW sy-vline 
WA_MERE_OUTTAB_ME3P_STR-WAERS_NEW sy-vline 
WA_MERE_OUTTAB_ME3P_STR-PEINH_NEW sy-vline 
WA_MERE_OUTTAB_ME3P_STR-BPRME_NEW sy-vline 
WA_MERE_OUTTAB_ME3P_STR-TEXT_NEW sy-vline 
WA_MERE_OUTTAB_ME3P_STR-AZEKORG sy-vline 
WA_MERE_OUTTAB_ME3P_STR-STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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