ABAP Select data from SAP table FMCCAVCA 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 FMCCAVCA 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 FMCCAVCA. 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 FMCCAVCA 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_FMCCAVCA TYPE STANDARD TABLE OF FMCCAVCA,
      WA_FMCCAVCA TYPE FMCCAVCA,
      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: <FMCCAVCA> TYPE FMCCAVCA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCCAVCA
*  INTO TABLE @DATA(IT_FMCCAVCA2).
*--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_FMCCAVCA INDEX 1 INTO DATA(WA_FMCCAVCA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCCAVCA>-RCLNT = 1.
<FMCCAVCA>-GL_SIRID = 1.
<FMCCAVCA>-RLDNR = 1.
<FMCCAVCA>-RRCTY = 1.
<FMCCAVCA>-RVERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCCAVCA-RYEAR, sy-vline,
  WA_FMCCAVCA-RTCUR, sy-vline,
  WA_FMCCAVCA-DRCRK, sy-vline,
  WA_FMCCAVCA-POPER, sy-vline,
  WA_FMCCAVCA-DOCCT, sy-vline,
  WA_FMCCAVCA-DOCNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCCAVCA 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_FMCCAVCA 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_FMCCAVCA INTO WA_FMCCAVCA.


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

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

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMCCAVCA-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCCAVCA-RYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field REFRYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMCCAVCA-REFRYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCCAVCA-REFRYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMCCAVCA-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCCAVCA-BELNR.
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_FMCCAVCA_STR, 
RCLNT TYPE STRING,
GL_SIRID TYPE STRING,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
RYEAR TYPE STRING,
RTCUR TYPE STRING,
DRCRK TYPE STRING,
POPER TYPE STRING,
DOCCT TYPE STRING,
DOCNR TYPE STRING,
DOCLN TYPE STRING,
RBUKRS TYPE STRING,
RACCT TYPE STRING,
RFUND TYPE STRING,
RBUDGET_PD TYPE STRING,
RGRANT_NBR TYPE STRING,
RFAREA TYPE STRING,
RUSERDIM TYPE STRING,
WFSTATE_9 TYPE STRING,
ALLOCTYPE_9 TYPE STRING,
LOGSYS TYPE STRING,
SBUKRS TYPE STRING,
TSL TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
SGTXT TYPE STRING,
DOCTY TYPE STRING,
ACTIV TYPE STRING,
BUDAT TYPE STRING,
WSDAT TYPE STRING,
REFDOCNR TYPE STRING,
REFRYEAR TYPE STRING,
REFDOCLN TYPE STRING,
REFDOCCT TYPE STRING,
REFACTIV TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
WSL TYPE STRING,
RWCUR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
LINETYPE TYPE STRING,
XSPLITMOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCCAVCA_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_FMCCAVCA_STR-RCLNT sy-vline 
WA_FMCCAVCA_STR-GL_SIRID sy-vline 
WA_FMCCAVCA_STR-RLDNR sy-vline 
WA_FMCCAVCA_STR-RRCTY sy-vline 
WA_FMCCAVCA_STR-RVERS sy-vline 
WA_FMCCAVCA_STR-RYEAR sy-vline 
WA_FMCCAVCA_STR-RTCUR sy-vline 
WA_FMCCAVCA_STR-DRCRK sy-vline 
WA_FMCCAVCA_STR-POPER sy-vline 
WA_FMCCAVCA_STR-DOCCT sy-vline 
WA_FMCCAVCA_STR-DOCNR sy-vline 
WA_FMCCAVCA_STR-DOCLN sy-vline 
WA_FMCCAVCA_STR-RBUKRS sy-vline 
WA_FMCCAVCA_STR-RACCT sy-vline 
WA_FMCCAVCA_STR-RFUND sy-vline 
WA_FMCCAVCA_STR-RBUDGET_PD sy-vline 
WA_FMCCAVCA_STR-RGRANT_NBR sy-vline 
WA_FMCCAVCA_STR-RFAREA sy-vline 
WA_FMCCAVCA_STR-RUSERDIM sy-vline 
WA_FMCCAVCA_STR-WFSTATE_9 sy-vline 
WA_FMCCAVCA_STR-ALLOCTYPE_9 sy-vline 
WA_FMCCAVCA_STR-LOGSYS sy-vline 
WA_FMCCAVCA_STR-SBUKRS sy-vline 
WA_FMCCAVCA_STR-TSL sy-vline 
WA_FMCCAVCA_STR-HSL sy-vline 
WA_FMCCAVCA_STR-KSL sy-vline 
WA_FMCCAVCA_STR-SGTXT sy-vline 
WA_FMCCAVCA_STR-DOCTY sy-vline 
WA_FMCCAVCA_STR-ACTIV sy-vline 
WA_FMCCAVCA_STR-BUDAT sy-vline 
WA_FMCCAVCA_STR-WSDAT sy-vline 
WA_FMCCAVCA_STR-REFDOCNR sy-vline 
WA_FMCCAVCA_STR-REFRYEAR sy-vline 
WA_FMCCAVCA_STR-REFDOCLN sy-vline 
WA_FMCCAVCA_STR-REFDOCCT sy-vline 
WA_FMCCAVCA_STR-REFACTIV sy-vline 
WA_FMCCAVCA_STR-CPUDT sy-vline 
WA_FMCCAVCA_STR-CPUTM sy-vline 
WA_FMCCAVCA_STR-USNAM sy-vline 
WA_FMCCAVCA_STR-AWTYP sy-vline 
WA_FMCCAVCA_STR-AWORG sy-vline 
WA_FMCCAVCA_STR-WSL sy-vline 
WA_FMCCAVCA_STR-RWCUR sy-vline 
WA_FMCCAVCA_STR-BELNR sy-vline 
WA_FMCCAVCA_STR-BUZEI sy-vline 
WA_FMCCAVCA_STR-LINETYPE sy-vline 
WA_FMCCAVCA_STR-XSPLITMOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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