ABAP Select data from SAP table FJVV_MIG_BASE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FJVV_MIG_BASE
*  INTO TABLE @DATA(IT_FJVV_MIG_BASE2).
*--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_FJVV_MIG_BASE INDEX 1 INTO DATA(WA_FJVV_MIG_BASE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FJVV_MIG_BASE>-RCLNT = 1.
<FJVV_MIG_BASE>-RLDNR = 1.
<FJVV_MIG_BASE>-RRCTY = 1.
<FJVV_MIG_BASE>-RYEAR = 1.
<FJVV_MIG_BASE>-RTCUR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FJVV_MIG_BASE-RUNIT, sy-vline,
  WA_FJVV_MIG_BASE-POPER, sy-vline,
  WA_FJVV_MIG_BASE-RBUKRS, sy-vline,
  WA_FJVV_MIG_BASE-VNAME, sy-vline,
  WA_FJVV_MIG_BASE-EGRUP, sy-vline,
  WA_FJVV_MIG_BASE-RACCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FJVV_MIG_BASE 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_FJVV_MIG_BASE 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_FJVV_MIG_BASE INTO WA_FJVV_MIG_BASE.


*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_FJVV_MIG_BASE-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FJVV_MIG_BASE-RLDNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field RUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FJVV_MIG_BASE-RUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FJVV_MIG_BASE-RUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FJVV_MIG_BASE-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FJVV_MIG_BASE-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FJVV_MIG_BASE-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FJVV_MIG_BASE-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FJVV_MIG_BASE-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FJVV_MIG_BASE-ANLN2.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit NUMCV, internal->external for field NPLNR_VORGN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_FJVV_MIG_BASE-NPLNR_VORGN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FJVV_MIG_BASE-NPLNR_VORGN.
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_FJVV_MIG_BASE_STR, 
RCLNT TYPE STRING,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RYEAR TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
POPER TYPE STRING,
RBUKRS TYPE STRING,
VNAME TYPE STRING,
EGRUP TYPE STRING,
RACCT TYPE STRING,
RBUSA TYPE STRING,
RCNTR TYPE STRING,
AUFNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
PRCTR TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
ANBWA TYPE STRING,
RECID TYPE STRING,
VPTNR TYPE STRING,
KOKRS TYPE STRING,
NPLNR TYPE STRING,
NPLNR_VORGN TYPE STRING,
RWCUR TYPE STRING,
PRODPER TYPE STRING,
WSL TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
OSL TYPE STRING,
VSL TYPE STRING,
BSL TYPE STRING,
CSL TYPE STRING,
DSL TYPE STRING,
ESL TYPE STRING,
FSL TYPE STRING,
GSL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FJVV_MIG_BASE_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_FJVV_MIG_BASE_STR-RCLNT sy-vline 
WA_FJVV_MIG_BASE_STR-RLDNR sy-vline 
WA_FJVV_MIG_BASE_STR-RRCTY sy-vline 
WA_FJVV_MIG_BASE_STR-RYEAR sy-vline 
WA_FJVV_MIG_BASE_STR-RTCUR sy-vline 
WA_FJVV_MIG_BASE_STR-RUNIT sy-vline 
WA_FJVV_MIG_BASE_STR-POPER sy-vline 
WA_FJVV_MIG_BASE_STR-RBUKRS sy-vline 
WA_FJVV_MIG_BASE_STR-VNAME sy-vline 
WA_FJVV_MIG_BASE_STR-EGRUP sy-vline 
WA_FJVV_MIG_BASE_STR-RACCT sy-vline 
WA_FJVV_MIG_BASE_STR-RBUSA sy-vline 
WA_FJVV_MIG_BASE_STR-RCNTR sy-vline 
WA_FJVV_MIG_BASE_STR-AUFNR sy-vline 
WA_FJVV_MIG_BASE_STR-PS_PSP_PNR sy-vline 
WA_FJVV_MIG_BASE_STR-PRCTR sy-vline 
WA_FJVV_MIG_BASE_STR-ANLN1 sy-vline 
WA_FJVV_MIG_BASE_STR-ANLN2 sy-vline 
WA_FJVV_MIG_BASE_STR-ANBWA sy-vline 
WA_FJVV_MIG_BASE_STR-RECID sy-vline 
WA_FJVV_MIG_BASE_STR-VPTNR sy-vline 
WA_FJVV_MIG_BASE_STR-KOKRS sy-vline 
WA_FJVV_MIG_BASE_STR-NPLNR sy-vline 
WA_FJVV_MIG_BASE_STR-NPLNR_VORGN sy-vline 
WA_FJVV_MIG_BASE_STR-RWCUR sy-vline 
WA_FJVV_MIG_BASE_STR-PRODPER sy-vline 
WA_FJVV_MIG_BASE_STR-WSL sy-vline 
WA_FJVV_MIG_BASE_STR-HSL sy-vline 
WA_FJVV_MIG_BASE_STR-KSL sy-vline 
WA_FJVV_MIG_BASE_STR-OSL sy-vline 
WA_FJVV_MIG_BASE_STR-VSL sy-vline 
WA_FJVV_MIG_BASE_STR-BSL sy-vline 
WA_FJVV_MIG_BASE_STR-CSL sy-vline 
WA_FJVV_MIG_BASE_STR-DSL sy-vline 
WA_FJVV_MIG_BASE_STR-ESL sy-vline 
WA_FJVV_MIG_BASE_STR-FSL sy-vline 
WA_FJVV_MIG_BASE_STR-GSL sy-vline      INTO ld_text SEPARATED BY SPACE.

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