ABAP Select data from SAP table CMMSEQNAIRE 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 CMMSEQNAIRE 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 CMMSEQNAIRE. 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 CMMSEQNAIRE 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_CMMSEQNAIRE TYPE STANDARD TABLE OF CMMSEQNAIRE,
      WA_CMMSEQNAIRE TYPE CMMSEQNAIRE,
      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: <CMMSEQNAIRE> TYPE CMMSEQNAIRE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMSEQNAIRE
*  INTO TABLE @DATA(IT_CMMSEQNAIRE2).
*--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_CMMSEQNAIRE INDEX 1 INTO DATA(WA_CMMSEQNAIRE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMSEQNAIRE>-MANDT = 1.
<CMMSEQNAIRE>-SUPLREVALSCORECARDUUID = 1.
<CMMSEQNAIRE>-SUPPLIER = 1.
<CMMSEQNAIRE>-SUPPLIERNAME = 1.
<CMMSEQNAIRE>-SUPPLIEREVALSCORECARD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMSEQNAIRE-SUPLREVALSCORECARDNAME, sy-vline,
  WA_CMMSEQNAIRE-SUPLREVALSTARTDATE, sy-vline,
  WA_CMMSEQNAIRE-SUPLREVALENDDATE, sy-vline,
  WA_CMMSEQNAIRE-PURCHASINGCATEGORY, sy-vline,
  WA_CMMSEQNAIRE-PURGCATNAME, sy-vline,
  WA_CMMSEQNAIRE-CALCULATEDSCORE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMSEQNAIRE 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_CMMSEQNAIRE 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_CMMSEQNAIRE INTO WA_CMMSEQNAIRE.


*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_CMMSEQNAIRE-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMSEQNAIRE-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PURCHASINGCATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMSEQNAIRE-PURCHASINGCATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMSEQNAIRE-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_CMMSEQNAIRE_STR, 
MANDT TYPE STRING,
SUPLREVALSCORECARDUUID TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
SUPPLIEREVALSCORECARD TYPE STRING,
SUPLREVALSCORECARDNAME TYPE STRING,
SUPLREVALSTARTDATE TYPE STRING,
SUPLREVALENDDATE TYPE STRING,
PURCHASINGCATEGORY TYPE STRING,
PURGCATNAME TYPE STRING,
CALCULATEDSCORE TYPE STRING,
TARGETSCORE TYPE STRING,
NUMBEROFRESPONSES TYPE STRING,
MINIMALSCORE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMSEQNAIRE_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_CMMSEQNAIRE_STR-MANDT sy-vline 
WA_CMMSEQNAIRE_STR-SUPLREVALSCORECARDUUID sy-vline 
WA_CMMSEQNAIRE_STR-SUPPLIER sy-vline 
WA_CMMSEQNAIRE_STR-SUPPLIERNAME sy-vline 
WA_CMMSEQNAIRE_STR-SUPPLIEREVALSCORECARD sy-vline 
WA_CMMSEQNAIRE_STR-SUPLREVALSCORECARDNAME sy-vline 
WA_CMMSEQNAIRE_STR-SUPLREVALSTARTDATE sy-vline 
WA_CMMSEQNAIRE_STR-SUPLREVALENDDATE sy-vline 
WA_CMMSEQNAIRE_STR-PURCHASINGCATEGORY sy-vline 
WA_CMMSEQNAIRE_STR-PURGCATNAME sy-vline 
WA_CMMSEQNAIRE_STR-CALCULATEDSCORE sy-vline 
WA_CMMSEQNAIRE_STR-TARGETSCORE sy-vline 
WA_CMMSEQNAIRE_STR-NUMBEROFRESPONSES sy-vline 
WA_CMMSEQNAIRE_STR-MINIMALSCORE sy-vline      INTO ld_text SEPARATED BY SPACE.

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