ABAP Select data from SAP table MCQMEL_CHAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCQMEL_CHAR
*  INTO TABLE @DATA(IT_MCQMEL_CHAR2).
*--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_MCQMEL_CHAR INDEX 1 INTO DATA(WA_MCQMEL_CHAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCQMEL_CHAR>-QMNUM = 1.
<MCQMEL_CHAR>-QMART = 1.
<MCQMEL_CHAR>-OBJNR_NTF = 1.
<MCQMEL_CHAR>-HERKZ = 1.
<MCQMEL_CHAR>-QMKAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCQMEL_CHAR-QMGRP, sy-vline,
  WA_MCQMEL_CHAR-QMCOD, sy-vline,
  WA_MCQMEL_CHAR-MAWERK, sy-vline,
  WA_MCQMEL_CHAR-MATNR, sy-vline,
  WA_MCQMEL_CHAR-REVLV, sy-vline,
  WA_MCQMEL_CHAR-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCQMEL_CHAR 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_MCQMEL_CHAR 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_MCQMEL_CHAR INTO WA_MCQMEL_CHAR.


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

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

*Conversion exit NUMCV, internal->external for field REVLV
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_MCQMEL_CHAR-REVLV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCQMEL_CHAR-REVLV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERIALNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_MCQMEL_CHAR-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCQMEL_CHAR-SERIALNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_MCQMEL_CHAR-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCQMEL_CHAR-MJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_MCQMEL_CHAR-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCQMEL_CHAR-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit TPLNR, internal->external for field BTPLN
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_MCQMEL_CHAR-BTPLN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCQMEL_CHAR-BTPLN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCQMEL_CHAR-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCQMEL_CHAR-KOSTL.
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_MCQMEL_CHAR_STR, 
QMNUM TYPE STRING,
QMART TYPE STRING,
OBJNR_NTF TYPE STRING,
HERKZ TYPE STRING,
QMKAT TYPE STRING,
QMGRP TYPE STRING,
QMCOD TYPE STRING,
MAWERK TYPE STRING,
MATNR TYPE STRING,
REVLV TYPE STRING,
CHARG TYPE STRING,
LGORTCHARG TYPE STRING,
SERIALNR TYPE STRING,
MJAHR TYPE STRING,
MBLNR TYPE STRING,
MBLPO TYPE STRING,
LGORTVORG TYPE STRING,
KUNUM TYPE STRING,
KUNWE TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
VBELN TYPE STRING,
BSTNK TYPE STRING,
BSTDK TYPE STRING,
LS_KDAUF TYPE STRING,
LS_KDPOS TYPE STRING,
LS_VBELN TYPE STRING,
LS_POSNR TYPE STRING,
KDMAT TYPE STRING,
LIFNUM TYPE STRING,
HERSTELLER TYPE STRING,
EMATNR TYPE STRING,
EKORG TYPE STRING,
BKGRP TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
FERTAUFNR TYPE STRING,
FERTAUFPL TYPE STRING,
COAUFNR TYPE STRING,
BUNAME TYPE STRING,
IWERK TYPE STRING,
INGRP TYPE STRING,
TPLNR TYPE STRING,
EQUNR TYPE STRING,
BAUTL_HD TYPE STRING,
EBORT_HD TYPE STRING,
BTPLN TYPE STRING,
BEQUI TYPE STRING,
INSPK TYPE STRING,
CROBJTY TYPE STRING,
ARBPL TYPE STRING,
ARBPLWERK TYPE STRING,
GEWRK TYPE STRING,
ABCKZ TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
BEBER TYPE STRING,
MSGRP TYPE STRING,
GSBER TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCQMEL_CHAR_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_MCQMEL_CHAR_STR-QMNUM sy-vline 
WA_MCQMEL_CHAR_STR-QMART sy-vline 
WA_MCQMEL_CHAR_STR-OBJNR_NTF sy-vline 
WA_MCQMEL_CHAR_STR-HERKZ sy-vline 
WA_MCQMEL_CHAR_STR-QMKAT sy-vline 
WA_MCQMEL_CHAR_STR-QMGRP sy-vline 
WA_MCQMEL_CHAR_STR-QMCOD sy-vline 
WA_MCQMEL_CHAR_STR-MAWERK sy-vline 
WA_MCQMEL_CHAR_STR-MATNR sy-vline 
WA_MCQMEL_CHAR_STR-REVLV sy-vline 
WA_MCQMEL_CHAR_STR-CHARG sy-vline 
WA_MCQMEL_CHAR_STR-LGORTCHARG sy-vline 
WA_MCQMEL_CHAR_STR-SERIALNR sy-vline 
WA_MCQMEL_CHAR_STR-MJAHR sy-vline 
WA_MCQMEL_CHAR_STR-MBLNR sy-vline 
WA_MCQMEL_CHAR_STR-MBLPO sy-vline 
WA_MCQMEL_CHAR_STR-LGORTVORG sy-vline 
WA_MCQMEL_CHAR_STR-KUNUM sy-vline 
WA_MCQMEL_CHAR_STR-KUNWE sy-vline 
WA_MCQMEL_CHAR_STR-VKORG sy-vline 
WA_MCQMEL_CHAR_STR-VTWEG sy-vline 
WA_MCQMEL_CHAR_STR-SPART sy-vline 
WA_MCQMEL_CHAR_STR-VKBUR sy-vline 
WA_MCQMEL_CHAR_STR-VKGRP sy-vline 
WA_MCQMEL_CHAR_STR-VBELN sy-vline 
WA_MCQMEL_CHAR_STR-BSTNK sy-vline 
WA_MCQMEL_CHAR_STR-BSTDK sy-vline 
WA_MCQMEL_CHAR_STR-LS_KDAUF sy-vline 
WA_MCQMEL_CHAR_STR-LS_KDPOS sy-vline 
WA_MCQMEL_CHAR_STR-LS_VBELN sy-vline 
WA_MCQMEL_CHAR_STR-LS_POSNR sy-vline 
WA_MCQMEL_CHAR_STR-KDMAT sy-vline 
WA_MCQMEL_CHAR_STR-LIFNUM sy-vline 
WA_MCQMEL_CHAR_STR-HERSTELLER sy-vline 
WA_MCQMEL_CHAR_STR-EMATNR sy-vline 
WA_MCQMEL_CHAR_STR-EKORG sy-vline 
WA_MCQMEL_CHAR_STR-BKGRP sy-vline 
WA_MCQMEL_CHAR_STR-EBELN sy-vline 
WA_MCQMEL_CHAR_STR-EBELP sy-vline 
WA_MCQMEL_CHAR_STR-FERTAUFNR sy-vline 
WA_MCQMEL_CHAR_STR-FERTAUFPL sy-vline 
WA_MCQMEL_CHAR_STR-COAUFNR sy-vline 
WA_MCQMEL_CHAR_STR-BUNAME sy-vline 
WA_MCQMEL_CHAR_STR-IWERK sy-vline 
WA_MCQMEL_CHAR_STR-INGRP sy-vline 
WA_MCQMEL_CHAR_STR-TPLNR sy-vline 
WA_MCQMEL_CHAR_STR-EQUNR sy-vline 
WA_MCQMEL_CHAR_STR-BAUTL_HD sy-vline 
WA_MCQMEL_CHAR_STR-EBORT_HD sy-vline 
WA_MCQMEL_CHAR_STR-BTPLN sy-vline 
WA_MCQMEL_CHAR_STR-BEQUI sy-vline 
WA_MCQMEL_CHAR_STR-INSPK sy-vline 
WA_MCQMEL_CHAR_STR-CROBJTY sy-vline 
WA_MCQMEL_CHAR_STR-ARBPL sy-vline 
WA_MCQMEL_CHAR_STR-ARBPLWERK sy-vline 
WA_MCQMEL_CHAR_STR-GEWRK sy-vline 
WA_MCQMEL_CHAR_STR-ABCKZ sy-vline 
WA_MCQMEL_CHAR_STR-SWERK sy-vline 
WA_MCQMEL_CHAR_STR-STORT sy-vline 
WA_MCQMEL_CHAR_STR-BEBER sy-vline 
WA_MCQMEL_CHAR_STR-MSGRP sy-vline 
WA_MCQMEL_CHAR_STR-GSBER sy-vline 
WA_MCQMEL_CHAR_STR-BUKRS sy-vline 
WA_MCQMEL_CHAR_STR-KOKRS sy-vline 
WA_MCQMEL_CHAR_STR-KOSTL sy-vline      INTO ld_text SEPARATED BY SPACE.

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