ABAP Select data from SAP table FMCA_PFBB_STANDARD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCA_PFBB_STANDARD
*  INTO TABLE @DATA(IT_FMCA_PFBB_STANDARD2).
*--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_FMCA_PFBB_STANDARD INDEX 1 INTO DATA(WA_FMCA_PFBB_STANDARD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCA_PFBB_STANDARD>-SEL_GPART = 1.
<FMCA_PFBB_STANDARD>-SEL_VKONT = 1.
<FMCA_PFBB_STANDARD>-SEL_VTREF = 1.
<FMCA_PFBB_STANDARD>-SEL_PERSL = 1.
<FMCA_PFBB_STANDARD>-SEL_REVTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCA_PFBB_STANDARD-SEL_IDNBR, sy-vline,
  WA_FMCA_PFBB_STANDARD-IDTYP, sy-vline,
  WA_FMCA_PFBB_STANDARD-SUBAP, sy-vline,
  WA_FMCA_PFBB_STANDARD-DATE, sy-vline,
  WA_FMCA_PFBB_STANDARD-RSTATUS, sy-vline,
  WA_FMCA_PFBB_STANDARD-INV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCA_PFBB_STANDARD 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_FMCA_PFBB_STANDARD 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_FMCA_PFBB_STANDARD INTO WA_FMCA_PFBB_STANDARD.


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

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

*Conversion exit ALPHA, internal->external for field SEL_VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMCA_PFBB_STANDARD-SEL_VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCA_PFBB_STANDARD-SEL_VTREF.
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_FMCA_PFBB_STANDARD_STR, 
SEL_GPART TYPE STRING,
SEL_VKONT TYPE STRING,
SEL_VTREF TYPE STRING,
SEL_PERSL TYPE STRING,
SEL_REVTYPE TYPE STRING,
SEL_IDNBR TYPE STRING,
IDTYP TYPE STRING,
SUBAP TYPE STRING,
DATE TYPE STRING,
RSTATUS TYPE STRING,
INV TYPE STRING,
TAXST TYPE STRING,
SIMUDOC TYPE STRING,
SIMUINV TYPE STRING,
PRSIM TYPE STRING,
PDF TYPE STRING,
TRC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCA_PFBB_STANDARD_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_FMCA_PFBB_STANDARD_STR-SEL_GPART sy-vline 
WA_FMCA_PFBB_STANDARD_STR-SEL_VKONT sy-vline 
WA_FMCA_PFBB_STANDARD_STR-SEL_VTREF sy-vline 
WA_FMCA_PFBB_STANDARD_STR-SEL_PERSL sy-vline 
WA_FMCA_PFBB_STANDARD_STR-SEL_REVTYPE sy-vline 
WA_FMCA_PFBB_STANDARD_STR-SEL_IDNBR sy-vline 
WA_FMCA_PFBB_STANDARD_STR-IDTYP sy-vline 
WA_FMCA_PFBB_STANDARD_STR-SUBAP sy-vline 
WA_FMCA_PFBB_STANDARD_STR-DATE sy-vline 
WA_FMCA_PFBB_STANDARD_STR-RSTATUS sy-vline 
WA_FMCA_PFBB_STANDARD_STR-INV sy-vline 
WA_FMCA_PFBB_STANDARD_STR-TAXST sy-vline 
WA_FMCA_PFBB_STANDARD_STR-SIMUDOC sy-vline 
WA_FMCA_PFBB_STANDARD_STR-SIMUINV sy-vline 
WA_FMCA_PFBB_STANDARD_STR-PRSIM sy-vline 
WA_FMCA_PFBB_STANDARD_STR-PDF sy-vline 
WA_FMCA_PFBB_STANDARD_STR-TRC sy-vline      INTO ld_text SEPARATED BY SPACE.

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