ABAP Select data from SAP table MGEINE 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 MGEINE 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 MGEINE. 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 MGEINE 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_MGEINE TYPE STANDARD TABLE OF MGEINE,
      WA_MGEINE TYPE MGEINE,
      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: <MGEINE> TYPE MGEINE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MGEINE
*  INTO TABLE @DATA(IT_MGEINE2).
*--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_MGEINE INDEX 1 INTO DATA(WA_MGEINE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MGEINE>-MATNR = 1.
<MGEINE>-LIFNR = 1.
<MGEINE>-EKORG_MG = 1.
<MGEINE>-WERKS_MG = 1.
<MGEINE>-MANDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MGEINE-INFNR, sy-vline,
  WA_MGEINE-EKORG, sy-vline,
  WA_MGEINE-ESOKZ, sy-vline,
  WA_MGEINE-WERKS, sy-vline,
  WA_MGEINE-LOEKZ, sy-vline,
  WA_MGEINE-ERDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MGEINE 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_MGEINE 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_MGEINE INTO WA_MGEINE.


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

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

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

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

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

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

*Conversion exit PERKZ, internal->external for field IPRKZ
CALL FUNCTION 'CONVERSION_EXIT_PERKZ_OUTPUT'
  EXPORTING
    input =                      WA_MGEINE-IPRKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MGEINE-IPRKZ.
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_MGEINE_STR, 
MATNR TYPE STRING,
LIFNR TYPE STRING,
EKORG_MG TYPE STRING,
WERKS_MG TYPE STRING,
MANDT TYPE STRING,
INFNR TYPE STRING,
EKORG TYPE STRING,
ESOKZ TYPE STRING,
WERKS TYPE STRING,
LOEKZ TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
EKGRP TYPE STRING,
WAERS TYPE STRING,
BONUS TYPE STRING,
MGBON TYPE STRING,
MINBM TYPE STRING,
NORBM TYPE STRING,
APLFZ TYPE STRING,
UEBTO TYPE STRING,
UEBTK TYPE STRING,
UNTTO TYPE STRING,
ANGNR TYPE STRING,
ANGDT TYPE STRING,
ANFNR TYPE STRING,
ANFPS TYPE STRING,
ABSKZ TYPE STRING,
AMODV TYPE STRING,
AMODB TYPE STRING,
AMOBM TYPE STRING,
AMOBW TYPE STRING,
AMOAM TYPE STRING,
AMOAW TYPE STRING,
AMORS TYPE STRING,
BSTYP TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
DATLB TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
BPRME TYPE STRING,
PRDAT TYPE STRING,
BPUMZ TYPE STRING,
BPUMN TYPE STRING,
MTXNO TYPE STRING,
WEBRE TYPE STRING,
EFFPR TYPE STRING,
EKKOL TYPE STRING,
SKTOF TYPE STRING,
KZABS TYPE STRING,
MWSKZ TYPE STRING,
TXDAT_FROM TYPE STRING,
TAX_COUNTRY TYPE STRING,
BWTAR TYPE STRING,
EBONU TYPE STRING,
EVERS TYPE STRING,
EXPRF TYPE STRING,
BSTAE TYPE STRING,
MEPRF TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
XERSN TYPE STRING,
EBON2 TYPE STRING,
EBON3 TYPE STRING,
EBONF TYPE STRING,
MHDRZ TYPE STRING,
VERID TYPE STRING,
BSTMA TYPE STRING,
RDPRF TYPE STRING,
MEGRU TYPE STRING,
J_1BNBM TYPE STRING,
SPE_CRE_REF_DOC TYPE STRING,
IPRKZ TYPE STRING,
CO_ORDER TYPE STRING,
VENDOR_RMA_REQ TYPE STRING,
DIFF_INVOICE TYPE STRING,
INCOV TYPE STRING,
INCO2_L TYPE STRING,
INCO3_L TYPE STRING,
AUT_SOURCE TYPE STRING,
DUMMY_EINE_INCL_EEW_PS TYPE STRING,
ISEOPBLOCKED TYPE STRING,
FSH_DCI_CORR TYPE STRING,
FSH_RLT TYPE STRING,
FSH_MLT TYPE STRING,
FSH_PLT TYPE STRING,
FSH_TLT TYPE STRING,
MRPIND TYPE STRING,
SGT_SSREL TYPE STRING,
TRANSPORT_CHAIN TYPE STRING,
STAGING_TIME TYPE STRING,
BUNGN TYPE STRING,
NOPRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MGEINE_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_MGEINE_STR-MATNR sy-vline 
WA_MGEINE_STR-LIFNR sy-vline 
WA_MGEINE_STR-EKORG_MG sy-vline 
WA_MGEINE_STR-WERKS_MG sy-vline 
WA_MGEINE_STR-MANDT sy-vline 
WA_MGEINE_STR-INFNR sy-vline 
WA_MGEINE_STR-EKORG sy-vline 
WA_MGEINE_STR-ESOKZ sy-vline 
WA_MGEINE_STR-WERKS sy-vline 
WA_MGEINE_STR-LOEKZ sy-vline 
WA_MGEINE_STR-ERDAT sy-vline 
WA_MGEINE_STR-ERNAM sy-vline 
WA_MGEINE_STR-EKGRP sy-vline 
WA_MGEINE_STR-WAERS sy-vline 
WA_MGEINE_STR-BONUS sy-vline 
WA_MGEINE_STR-MGBON sy-vline 
WA_MGEINE_STR-MINBM sy-vline 
WA_MGEINE_STR-NORBM sy-vline 
WA_MGEINE_STR-APLFZ sy-vline 
WA_MGEINE_STR-UEBTO sy-vline 
WA_MGEINE_STR-UEBTK sy-vline 
WA_MGEINE_STR-UNTTO sy-vline 
WA_MGEINE_STR-ANGNR sy-vline 
WA_MGEINE_STR-ANGDT sy-vline 
WA_MGEINE_STR-ANFNR sy-vline 
WA_MGEINE_STR-ANFPS sy-vline 
WA_MGEINE_STR-ABSKZ sy-vline 
WA_MGEINE_STR-AMODV sy-vline 
WA_MGEINE_STR-AMODB sy-vline 
WA_MGEINE_STR-AMOBM sy-vline 
WA_MGEINE_STR-AMOBW sy-vline 
WA_MGEINE_STR-AMOAM sy-vline 
WA_MGEINE_STR-AMOAW sy-vline 
WA_MGEINE_STR-AMORS sy-vline 
WA_MGEINE_STR-BSTYP sy-vline 
WA_MGEINE_STR-EBELN sy-vline 
WA_MGEINE_STR-EBELP sy-vline 
WA_MGEINE_STR-DATLB sy-vline 
WA_MGEINE_STR-NETPR sy-vline 
WA_MGEINE_STR-PEINH sy-vline 
WA_MGEINE_STR-BPRME sy-vline 
WA_MGEINE_STR-PRDAT sy-vline 
WA_MGEINE_STR-BPUMZ sy-vline 
WA_MGEINE_STR-BPUMN sy-vline 
WA_MGEINE_STR-MTXNO sy-vline 
WA_MGEINE_STR-WEBRE sy-vline 
WA_MGEINE_STR-EFFPR sy-vline 
WA_MGEINE_STR-EKKOL sy-vline 
WA_MGEINE_STR-SKTOF sy-vline 
WA_MGEINE_STR-KZABS sy-vline 
WA_MGEINE_STR-MWSKZ sy-vline 
WA_MGEINE_STR-TXDAT_FROM sy-vline 
WA_MGEINE_STR-TAX_COUNTRY sy-vline 
WA_MGEINE_STR-BWTAR sy-vline 
WA_MGEINE_STR-EBONU sy-vline 
WA_MGEINE_STR-EVERS sy-vline 
WA_MGEINE_STR-EXPRF sy-vline 
WA_MGEINE_STR-BSTAE sy-vline 
WA_MGEINE_STR-MEPRF sy-vline 
WA_MGEINE_STR-INCO1 sy-vline 
WA_MGEINE_STR-INCO2 sy-vline 
WA_MGEINE_STR-XERSN sy-vline 
WA_MGEINE_STR-EBON2 sy-vline 
WA_MGEINE_STR-EBON3 sy-vline 
WA_MGEINE_STR-EBONF sy-vline 
WA_MGEINE_STR-MHDRZ sy-vline 
WA_MGEINE_STR-VERID sy-vline 
WA_MGEINE_STR-BSTMA sy-vline 
WA_MGEINE_STR-RDPRF sy-vline 
WA_MGEINE_STR-MEGRU sy-vline 
WA_MGEINE_STR-J_1BNBM sy-vline 
WA_MGEINE_STR-SPE_CRE_REF_DOC sy-vline 
WA_MGEINE_STR-IPRKZ sy-vline 
WA_MGEINE_STR-CO_ORDER sy-vline 
WA_MGEINE_STR-VENDOR_RMA_REQ sy-vline 
WA_MGEINE_STR-DIFF_INVOICE sy-vline 
WA_MGEINE_STR-INCOV sy-vline 
WA_MGEINE_STR-INCO2_L sy-vline 
WA_MGEINE_STR-INCO3_L sy-vline 
WA_MGEINE_STR-AUT_SOURCE sy-vline 
WA_MGEINE_STR-DUMMY_EINE_INCL_EEW_PS sy-vline 
WA_MGEINE_STR-ISEOPBLOCKED sy-vline 
WA_MGEINE_STR-FSH_DCI_CORR sy-vline 
WA_MGEINE_STR-FSH_RLT sy-vline 
WA_MGEINE_STR-FSH_MLT sy-vline 
WA_MGEINE_STR-FSH_PLT sy-vline 
WA_MGEINE_STR-FSH_TLT sy-vline 
WA_MGEINE_STR-MRPIND sy-vline 
WA_MGEINE_STR-SGT_SSREL sy-vline 
WA_MGEINE_STR-TRANSPORT_CHAIN sy-vline 
WA_MGEINE_STR-STAGING_TIME sy-vline 
WA_MGEINE_STR-BUNGN sy-vline 
WA_MGEINE_STR-NOPRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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