ABAP Select data from SAP table CMMSUPLREVALUSRQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMSUPLREVALUSRQ
*  INTO TABLE @DATA(IT_CMMSUPLREVALUSRQ2).
*--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_CMMSUPLREVALUSRQ INDEX 1 INTO DATA(WA_CMMSUPLREVALUSRQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMSUPLREVALUSRQ>-MANDT = 1.
<CMMSUPLREVALUSRQ>-SUPPLIER = 1.
<CMMSUPLREVALUSRQ>-PURCHASINGCATEGORY = 1.
<CMMSUPLREVALUSRQ>-SUPLREVALUSERDEFINEDCRITERIA = 1.
<CMMSUPLREVALUSRQ>-MATERIALGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMSUPLREVALUSRQ-SUPPLIERCOUNTRY, sy-vline,
  WA_CMMSUPLREVALUSRQ-REGION, sy-vline,
  WA_CMMSUPLREVALUSRQ-CALENDARYEAR, sy-vline,
  WA_CMMSUPLREVALUSRQ-CALENDARMONTH, sy-vline,
  WA_CMMSUPLREVALUSRQ-CALENDARWEEK, sy-vline,
  WA_CMMSUPLREVALUSRQ-CALENDARQUARTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMSUPLREVALUSRQ 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_CMMSUPLREVALUSRQ 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_CMMSUPLREVALUSRQ INTO WA_CMMSUPLREVALUSRQ.


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

*Conversion exit ALPHA, internal->external for field PURCHASINGCATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMSUPLREVALUSRQ-PURCHASINGCATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMSUPLREVALUSRQ-PURCHASINGCATEGORY.
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_CMMSUPLREVALUSRQ_STR, 
MANDT TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASINGCATEGORY TYPE STRING,
SUPLREVALUSERDEFINEDCRITERIA TYPE STRING,
MATERIALGROUP TYPE STRING,
SUPPLIERCOUNTRY TYPE STRING,
REGION TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARWEEK TYPE STRING,
CALENDARQUARTER TYPE STRING,
PURGCATNAME TYPE STRING,
NMBROFSUPLREVALUSRDFNDCRITRA1 TYPE STRING,
NMBROFSUPLREVALUSRDFNDCRITRA2 TYPE STRING,
NMBROFSUPLREVALUSRDFNDCRITRA3 TYPE STRING,
NMBROFSUPLREVALUSRDFNDCRITRA4 TYPE STRING,
NMBROFSUPLREVALUSRDFNDCRITRA5 TYPE STRING,
NMBROFSUPLREVALUSRDFNDCRITRA6 TYPE STRING,
SUPLREVALUSRDFNDCRITRA1VALUE TYPE STRING,
SUPLREVALUSRDFNDCRITRA2VALUE TYPE STRING,
SUPLREVALUSRDFNDCRITRA3VALUE TYPE STRING,
SUPLREVALUSRDFNDCRITRA4VALUE TYPE STRING,
SUPLREVALUSRDFNDCRITRA5VALUE TYPE STRING,
SUPLREVALUSRCRITERIA6WGTGVALUE TYPE STRING,
TOTNMBROFSUPLRUSRDFNDCRITRA TYPE STRING,
SUPLREVALUSRDFNDCRITRASUMVALUE TYPE STRING,
SUPLREVALUSRDFNDCRITRATOTVAL TYPE STRING,
SUPLREVALUSRDFNDCRITERIA1SCORE TYPE STRING,
SUPLREVALUSRDFNDCRITERIA2SCORE TYPE STRING,
SUPLREVALUSRDFNDCRITERIA3SCORE TYPE STRING,
SUPLREVALUSRDFNDCRITERIA4SCORE TYPE STRING,
SUPLREVALUSRDFNDCRITERIA5SCORE TYPE STRING,
SUPPLIEREVALUSRCRITERIA6VALUE TYPE STRING,
SUPLREVALUSRDFNDCRITRATOTSCORE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMSUPLREVALUSRQ_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_CMMSUPLREVALUSRQ_STR-MANDT sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPPLIER sy-vline 
WA_CMMSUPLREVALUSRQ_STR-PURCHASINGCATEGORY sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSERDEFINEDCRITERIA sy-vline 
WA_CMMSUPLREVALUSRQ_STR-MATERIALGROUP sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPPLIERCOUNTRY sy-vline 
WA_CMMSUPLREVALUSRQ_STR-REGION sy-vline 
WA_CMMSUPLREVALUSRQ_STR-CALENDARYEAR sy-vline 
WA_CMMSUPLREVALUSRQ_STR-CALENDARMONTH sy-vline 
WA_CMMSUPLREVALUSRQ_STR-CALENDARWEEK sy-vline 
WA_CMMSUPLREVALUSRQ_STR-CALENDARQUARTER sy-vline 
WA_CMMSUPLREVALUSRQ_STR-PURGCATNAME sy-vline 
WA_CMMSUPLREVALUSRQ_STR-NMBROFSUPLREVALUSRDFNDCRITRA1 sy-vline 
WA_CMMSUPLREVALUSRQ_STR-NMBROFSUPLREVALUSRDFNDCRITRA2 sy-vline 
WA_CMMSUPLREVALUSRQ_STR-NMBROFSUPLREVALUSRDFNDCRITRA3 sy-vline 
WA_CMMSUPLREVALUSRQ_STR-NMBROFSUPLREVALUSRDFNDCRITRA4 sy-vline 
WA_CMMSUPLREVALUSRQ_STR-NMBROFSUPLREVALUSRDFNDCRITRA5 sy-vline 
WA_CMMSUPLREVALUSRQ_STR-NMBROFSUPLREVALUSRDFNDCRITRA6 sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITRA1VALUE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITRA2VALUE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITRA3VALUE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITRA4VALUE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITRA5VALUE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRCRITERIA6WGTGVALUE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-TOTNMBROFSUPLRUSRDFNDCRITRA sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITRASUMVALUE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITRATOTVAL sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITERIA1SCORE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITERIA2SCORE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITERIA3SCORE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITERIA4SCORE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITERIA5SCORE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPPLIEREVALUSRCRITERIA6VALUE sy-vline 
WA_CMMSUPLREVALUSRQ_STR-SUPLREVALUSRDFNDCRITRATOTSCORE sy-vline      INTO ld_text SEPARATED BY SPACE.

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