ABAP Select data from SAP table CMATDOCMNTHBUSPR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMATDOCMNTHBUSPR
*  INTO TABLE @DATA(IT_CMATDOCMNTHBUSPR2).
*--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_CMATDOCMNTHBUSPR INDEX 1 INTO DATA(WA_CMATDOCMNTHBUSPR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMATDOCMNTHBUSPR>-MANDT = 1.
<CMATDOCMNTHBUSPR>-SVTAGGREGATIONITEMUUID = 1.
<CMATDOCMNTHBUSPR>-CALENDARMONTH = 1.
<CMATDOCMNTHBUSPR>-SVTBUSINESSPROCESS = 1.
<CMATDOCMNTHBUSPR>-CMPLRQSVTSCENARIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMATDOCMNTHBUSPR-SVTPREPROCESSEDDOCUMENTUUID, sy-vline,
  WA_CMATDOCMNTHBUSPR-CHMLCMPLNCINFOUUID, sy-vline,
  WA_CMATDOCMNTHBUSPR-MATERIALDOCUMENT, sy-vline,
  WA_CMATDOCMNTHBUSPR-MATERIAL, sy-vline,
  WA_CMATDOCMNTHBUSPR-PRODUCTDESCRIPTION, sy-vline,
  WA_CMATDOCMNTHBUSPR-QUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMATDOCMNTHBUSPR 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_CMATDOCMNTHBUSPR 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_CMATDOCMNTHBUSPR INTO WA_CMATDOCMNTHBUSPR.


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

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

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

*Conversion exit CUNIT, internal->external for field SUBSTANCEVOLUMEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMATDOCMNTHBUSPR-SUBSTANCEVOLUMEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMATDOCMNTHBUSPR-SUBSTANCEVOLUMEUNIT.
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_CMATDOCMNTHBUSPR_STR, 
MANDT TYPE STRING,
SVTAGGREGATIONITEMUUID TYPE STRING,
CALENDARMONTH TYPE STRING,
SVTBUSINESSPROCESS TYPE STRING,
CMPLRQSVTSCENARIO TYPE STRING,
SVTPREPROCESSEDDOCUMENTUUID TYPE STRING,
CHMLCMPLNCINFOUUID TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIAL TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,
QUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,
PLANT TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
CALCULATEDSUBSTANCEVOLUME TYPE STRING,
SUBSTANCEVOLUMEUNIT TYPE STRING,
POSTINGDATE TYPE STRING,
CREATIONTIME TYPE STRING,
APPLICATIONLOGHANDLE TYPE STRING,
SVTAGGREGATIONHEADERUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMATDOCMNTHBUSPR_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_CMATDOCMNTHBUSPR_STR-MANDT sy-vline 
WA_CMATDOCMNTHBUSPR_STR-SVTAGGREGATIONITEMUUID sy-vline 
WA_CMATDOCMNTHBUSPR_STR-CALENDARMONTH sy-vline 
WA_CMATDOCMNTHBUSPR_STR-SVTBUSINESSPROCESS sy-vline 
WA_CMATDOCMNTHBUSPR_STR-CMPLRQSVTSCENARIO sy-vline 
WA_CMATDOCMNTHBUSPR_STR-SVTPREPROCESSEDDOCUMENTUUID sy-vline 
WA_CMATDOCMNTHBUSPR_STR-CHMLCMPLNCINFOUUID sy-vline 
WA_CMATDOCMNTHBUSPR_STR-MATERIALDOCUMENT sy-vline 
WA_CMATDOCMNTHBUSPR_STR-MATERIAL sy-vline 
WA_CMATDOCMNTHBUSPR_STR-PRODUCTDESCRIPTION sy-vline 
WA_CMATDOCMNTHBUSPR_STR-QUANTITY sy-vline 
WA_CMATDOCMNTHBUSPR_STR-QUANTITYUNIT sy-vline 
WA_CMATDOCMNTHBUSPR_STR-PLANT sy-vline 
WA_CMATDOCMNTHBUSPR_STR-MATERIALDOCUMENTITEM sy-vline 
WA_CMATDOCMNTHBUSPR_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_CMATDOCMNTHBUSPR_STR-CALCULATEDSUBSTANCEVOLUME sy-vline 
WA_CMATDOCMNTHBUSPR_STR-SUBSTANCEVOLUMEUNIT sy-vline 
WA_CMATDOCMNTHBUSPR_STR-POSTINGDATE sy-vline 
WA_CMATDOCMNTHBUSPR_STR-CREATIONTIME sy-vline 
WA_CMATDOCMNTHBUSPR_STR-APPLICATIONLOGHANDLE sy-vline 
WA_CMATDOCMNTHBUSPR_STR-SVTAGGREGATIONHEADERUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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