ABAP Select data from SAP table CMFGCERTWC 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 CMFGCERTWC 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 CMFGCERTWC. 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 CMFGCERTWC 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_CMFGCERTWC TYPE STANDARD TABLE OF CMFGCERTWC,
      WA_CMFGCERTWC TYPE CMFGCERTWC,
      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: <CMFGCERTWC> TYPE CMFGCERTWC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMFGCERTWC
*  INTO TABLE @DATA(IT_CMFGCERTWC2).
*--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_CMFGCERTWC INDEX 1 INTO DATA(WA_CMFGCERTWC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMFGCERTWC>-MANDT = 1.
<CMFGCERTWC>-MFGQUALIFNCERTIFICATE = 1.
<CMFGCERTWC>-WORKCENTERINTERNALID = 1.
<CMFGCERTWC>-WORKCENTERTYPECODE = 1.
<CMFGCERTWC>-WORKCENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMFGCERTWC-PLANT, sy-vline,
  WA_CMFGCERTWC-WORKCENTERPLANT, sy-vline,
  WA_CMFGCERTWC-WORKCENTERCATEGORYCODE, sy-vline,
  WA_CMFGCERTWC-WORKCENTERUSAGE, sy-vline,
  WA_CMFGCERTWC-SUPPLYAREA, sy-vline,
  WA_CMFGCERTWC-WORKCENTERLOCATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMFGCERTWC 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_CMFGCERTWC 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_CMFGCERTWC INTO WA_CMFGCERTWC.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CMFGCERTWC_STR, 
MANDT TYPE STRING,
MFGQUALIFNCERTIFICATE TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
WORKCENTER TYPE STRING,
PLANT TYPE STRING,
WORKCENTERPLANT TYPE STRING,
WORKCENTERCATEGORYCODE TYPE STRING,
WORKCENTERUSAGE TYPE STRING,
SUPPLYAREA TYPE STRING,
WORKCENTERLOCATION TYPE STRING,
MFGQUALIFNREQUIREDSKILLLEVEL TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMFGCERTWC_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_CMFGCERTWC_STR-MANDT sy-vline 
WA_CMFGCERTWC_STR-MFGQUALIFNCERTIFICATE sy-vline 
WA_CMFGCERTWC_STR-WORKCENTERINTERNALID sy-vline 
WA_CMFGCERTWC_STR-WORKCENTERTYPECODE sy-vline 
WA_CMFGCERTWC_STR-WORKCENTER sy-vline 
WA_CMFGCERTWC_STR-PLANT sy-vline 
WA_CMFGCERTWC_STR-WORKCENTERPLANT sy-vline 
WA_CMFGCERTWC_STR-WORKCENTERCATEGORYCODE sy-vline 
WA_CMFGCERTWC_STR-WORKCENTERUSAGE sy-vline 
WA_CMFGCERTWC_STR-SUPPLYAREA sy-vline 
WA_CMFGCERTWC_STR-WORKCENTERLOCATION sy-vline 
WA_CMFGCERTWC_STR-MFGQUALIFNREQUIREDSKILLLEVEL sy-vline 
WA_CMFGCERTWC_STR-VALIDITYSTARTDATE sy-vline 
WA_CMFGCERTWC_STR-VALIDITYENDDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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