ABAP Select data from SAP table CMRPSUPORD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMRPSUPORD
*  INTO TABLE @DATA(IT_CMRPSUPORD2).
*--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_CMRPSUPORD INDEX 1 INTO DATA(WA_CMRPSUPORD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMRPSUPORD>-MANDT = 1.
<CMRPSUPORD>-MATERIAL = 1.
<CMRPSUPORD>-PLANT = 1.
<CMRPSUPORD>-MRPAREA = 1.
<CMRPSUPORD>-REQUIREMENTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMRPSUPORD-REQUESTEDQUANTITY, sy-vline,
  WA_CMRPSUPORD-ORDERTYPE, sy-vline,
  WA_CMRPSUPORD-ORDERID, sy-vline,
  WA_CMRPSUPORD-ORDERITEM, sy-vline,
  WA_CMRPSUPORD-SCHEDULELINE, sy-vline,
  WA_CMRPSUPORD-PRODUCTIONVERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMRPSUPORD 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_CMRPSUPORD 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_CMRPSUPORD INTO WA_CMRPSUPORD.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CMRPSUPORD-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMRPSUPORD-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field SALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMRPSUPORD-SALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMRPSUPORD-SALESORDER.
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_CMRPSUPORD_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
REQUIREMENTDATE TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
ORDERTYPE TYPE STRING,
ORDERID TYPE STRING,
ORDERITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
PRODUCTIONVERSION TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
STORAGELOCATION TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
MRPCONTROLLER TYPE STRING,
SOURCEMRPELEMENTCATEGORY TYPE STRING,
SALESORDER TYPE STRING,
MRPSALESORDERITEM TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMRPSUPORD_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_CMRPSUPORD_STR-MANDT sy-vline 
WA_CMRPSUPORD_STR-MATERIAL sy-vline 
WA_CMRPSUPORD_STR-PLANT sy-vline 
WA_CMRPSUPORD_STR-MRPAREA sy-vline 
WA_CMRPSUPORD_STR-REQUIREMENTDATE sy-vline 
WA_CMRPSUPORD_STR-REQUESTEDQUANTITY sy-vline 
WA_CMRPSUPORD_STR-ORDERTYPE sy-vline 
WA_CMRPSUPORD_STR-ORDERID sy-vline 
WA_CMRPSUPORD_STR-ORDERITEM sy-vline 
WA_CMRPSUPORD_STR-SCHEDULELINE sy-vline 
WA_CMRPSUPORD_STR-PRODUCTIONVERSION sy-vline 
WA_CMRPSUPORD_STR-PURCHASINGINFORECORD sy-vline 
WA_CMRPSUPORD_STR-PURCHASINGDOCUMENT sy-vline 
WA_CMRPSUPORD_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_CMRPSUPORD_STR-PURCHASINGORGANIZATION sy-vline 
WA_CMRPSUPORD_STR-PURCHASINGGROUP sy-vline 
WA_CMRPSUPORD_STR-MATERIALBASEUNIT sy-vline 
WA_CMRPSUPORD_STR-STORAGELOCATION sy-vline 
WA_CMRPSUPORD_STR-SUPPLYINGPLANT sy-vline 
WA_CMRPSUPORD_STR-MRPCONTROLLER sy-vline 
WA_CMRPSUPORD_STR-SOURCEMRPELEMENTCATEGORY sy-vline 
WA_CMRPSUPORD_STR-SALESORDER sy-vline 
WA_CMRPSUPORD_STR-MRPSALESORDERITEM sy-vline 
WA_CMRPSUPORD_STR-WBSELEMENTINTERNALID sy-vline      INTO ld_text SEPARATED BY SPACE.

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