ABAP Select data from SAP table CRFHD into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRFHD 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 CRFHD. 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 CRFHD 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_CRFHD TYPE STANDARD TABLE OF CRFHD,
      WA_CRFHD TYPE CRFHD,
      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: <CRFHD> TYPE CRFHD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRFHD
*  INTO TABLE @DATA(IT_CRFHD2).
*--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_CRFHD INDEX 1 INTO DATA(WA_CRFHD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRFHD>-MANDT = 1.
<CRFHD>-OBJTY = 1.
<CRFHD>-OBJID = 1.
<CRFHD>-ZAEHL = 1.
<CRFHD>-FHMAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRFHD-OBJTY_V, sy-vline,
  WA_CRFHD-OBJID_V, sy-vline,
  WA_CRFHD-LOEKZ, sy-vline,
  WA_CRFHD-DATUV, sy-vline,
  WA_CRFHD-DATUB, sy-vline,
  WA_CRFHD-AENNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRFHD 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_CRFHD 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_CRFHD INTO WA_CRFHD.


*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 FHMAR, internal->external for field FHMAR
CALL FUNCTION 'CONVERSION_EXIT_FHMAR_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-FHMAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-FHMAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field PARU1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-PARU1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-PARU1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-PARU2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-PARU2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-PARU3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-PARU3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-PARU4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-PARU4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU5
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-PARU5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-PARU5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-PARU6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-PARU6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRFHD-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRFHD-MEINS.
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_CRFHD_STR, 
MANDT TYPE STRING,
OBJTY TYPE STRING,
OBJID TYPE STRING,
ZAEHL TYPE STRING,
FHMAR TYPE STRING,
OBJTY_V TYPE STRING,
OBJID_V TYPE STRING,
LOEKZ TYPE STRING,
DATUV TYPE STRING,
DATUB TYPE STRING,
AENNR TYPE STRING,
ANNAM TYPE STRING,
ANDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
BRGRU TYPE STRING,
STATUS TYPE STRING,
KZKBL TYPE STRING,
STOWK TYPE STRING,
STORT TYPE STRING,
BASEH TYPE STRING,
STEUF TYPE STRING,
STEUF_REF TYPE STRING,
FGRU1 TYPE STRING,
FGRU2 TYPE STRING,
PLANV TYPE STRING,
KTSCH TYPE STRING,
KTSCH_REF TYPE STRING,
BZOFFB TYPE STRING,
BZOFFB_REF TYPE STRING,
OFFSTB TYPE STRING,
EHOFFB TYPE STRING,
OFFSTB_REF TYPE STRING,
BZOFFE TYPE STRING,
BZOFFE_REF TYPE STRING,
OFFSTE TYPE STRING,
EHOFFE TYPE STRING,
OFFSTE_REF TYPE STRING,
MGFORM TYPE STRING,
MGFORM_REF TYPE STRING,
EWFORM TYPE STRING,
EWFORM_REF TYPE STRING,
PAR01 TYPE STRING,
PAR02 TYPE STRING,
PAR03 TYPE STRING,
PAR04 TYPE STRING,
PAR05 TYPE STRING,
PAR06 TYPE STRING,
PARU1 TYPE STRING,
PARU2 TYPE STRING,
PARU3 TYPE STRING,
PARU4 TYPE STRING,
PARU5 TYPE STRING,
PARU6 TYPE STRING,
PARV1 TYPE STRING,
PARV2 TYPE STRING,
PARV3 TYPE STRING,
PARV4 TYPE STRING,
PARV5 TYPE STRING,
PARV6 TYPE STRING,
FHWRK TYPE STRING,
MATNR TYPE STRING,
SFHNR TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
EQUNR TYPE STRING,
FHKTX TYPE STRING,
MMSTA TYPE STRING,
DOKST TYPE STRING,
DOKAS TYPE STRING,
DOKGV TYPE STRING,
EQSTO TYPE STRING,
EQTYP TYPE STRING,
EQWPL TYPE STRING,
EQWTX TYPE STRING,
EQPNT TYPE STRING,
EQPTX TYPE STRING,
ATNAM TYPE STRING,
ATVOR TYPE STRING,
MSEHI TYPE STRING,
ATDIM TYPE STRING,
ANZDZ TYPE STRING,
MEINS TYPE STRING,
MODKZ TYPE STRING,
MSTAE TYPE STRING,
INACT TYPE STRING,
REGISTRABLE TYPE STRING,
TOOL_WC_OBJTY TYPE STRING,
TOOL_WC_OBJID TYPE STRING,
TOOL_WC_WERKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRFHD_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_CRFHD_STR-MANDT sy-vline 
WA_CRFHD_STR-OBJTY sy-vline 
WA_CRFHD_STR-OBJID sy-vline 
WA_CRFHD_STR-ZAEHL sy-vline 
WA_CRFHD_STR-FHMAR sy-vline 
WA_CRFHD_STR-OBJTY_V sy-vline 
WA_CRFHD_STR-OBJID_V sy-vline 
WA_CRFHD_STR-LOEKZ sy-vline 
WA_CRFHD_STR-DATUV sy-vline 
WA_CRFHD_STR-DATUB sy-vline 
WA_CRFHD_STR-AENNR sy-vline 
WA_CRFHD_STR-ANNAM sy-vline 
WA_CRFHD_STR-ANDAT sy-vline 
WA_CRFHD_STR-AENAM sy-vline 
WA_CRFHD_STR-AEDAT sy-vline 
WA_CRFHD_STR-BRGRU sy-vline 
WA_CRFHD_STR-STATUS sy-vline 
WA_CRFHD_STR-KZKBL sy-vline 
WA_CRFHD_STR-STOWK sy-vline 
WA_CRFHD_STR-STORT sy-vline 
WA_CRFHD_STR-BASEH sy-vline 
WA_CRFHD_STR-STEUF sy-vline 
WA_CRFHD_STR-STEUF_REF sy-vline 
WA_CRFHD_STR-FGRU1 sy-vline 
WA_CRFHD_STR-FGRU2 sy-vline 
WA_CRFHD_STR-PLANV sy-vline 
WA_CRFHD_STR-KTSCH sy-vline 
WA_CRFHD_STR-KTSCH_REF sy-vline 
WA_CRFHD_STR-BZOFFB sy-vline 
WA_CRFHD_STR-BZOFFB_REF sy-vline 
WA_CRFHD_STR-OFFSTB sy-vline 
WA_CRFHD_STR-EHOFFB sy-vline 
WA_CRFHD_STR-OFFSTB_REF sy-vline 
WA_CRFHD_STR-BZOFFE sy-vline 
WA_CRFHD_STR-BZOFFE_REF sy-vline 
WA_CRFHD_STR-OFFSTE sy-vline 
WA_CRFHD_STR-EHOFFE sy-vline 
WA_CRFHD_STR-OFFSTE_REF sy-vline 
WA_CRFHD_STR-MGFORM sy-vline 
WA_CRFHD_STR-MGFORM_REF sy-vline 
WA_CRFHD_STR-EWFORM sy-vline 
WA_CRFHD_STR-EWFORM_REF sy-vline 
WA_CRFHD_STR-PAR01 sy-vline 
WA_CRFHD_STR-PAR02 sy-vline 
WA_CRFHD_STR-PAR03 sy-vline 
WA_CRFHD_STR-PAR04 sy-vline 
WA_CRFHD_STR-PAR05 sy-vline 
WA_CRFHD_STR-PAR06 sy-vline 
WA_CRFHD_STR-PARU1 sy-vline 
WA_CRFHD_STR-PARU2 sy-vline 
WA_CRFHD_STR-PARU3 sy-vline 
WA_CRFHD_STR-PARU4 sy-vline 
WA_CRFHD_STR-PARU5 sy-vline 
WA_CRFHD_STR-PARU6 sy-vline 
WA_CRFHD_STR-PARV1 sy-vline 
WA_CRFHD_STR-PARV2 sy-vline 
WA_CRFHD_STR-PARV3 sy-vline 
WA_CRFHD_STR-PARV4 sy-vline 
WA_CRFHD_STR-PARV5 sy-vline 
WA_CRFHD_STR-PARV6 sy-vline 
WA_CRFHD_STR-FHWRK sy-vline 
WA_CRFHD_STR-MATNR sy-vline 
WA_CRFHD_STR-SFHNR sy-vline 
WA_CRFHD_STR-DOKAR sy-vline 
WA_CRFHD_STR-DOKNR sy-vline 
WA_CRFHD_STR-DOKVR sy-vline 
WA_CRFHD_STR-DOKTL sy-vline 
WA_CRFHD_STR-EQUNR sy-vline 
WA_CRFHD_STR-FHKTX sy-vline 
WA_CRFHD_STR-MMSTA sy-vline 
WA_CRFHD_STR-DOKST sy-vline 
WA_CRFHD_STR-DOKAS sy-vline 
WA_CRFHD_STR-DOKGV sy-vline 
WA_CRFHD_STR-EQSTO sy-vline 
WA_CRFHD_STR-EQTYP sy-vline 
WA_CRFHD_STR-EQWPL sy-vline 
WA_CRFHD_STR-EQWTX sy-vline 
WA_CRFHD_STR-EQPNT sy-vline 
WA_CRFHD_STR-EQPTX sy-vline 
WA_CRFHD_STR-ATNAM sy-vline 
WA_CRFHD_STR-ATVOR sy-vline 
WA_CRFHD_STR-MSEHI sy-vline 
WA_CRFHD_STR-ATDIM sy-vline 
WA_CRFHD_STR-ANZDZ sy-vline 
WA_CRFHD_STR-MEINS sy-vline 
WA_CRFHD_STR-MODKZ sy-vline 
WA_CRFHD_STR-MSTAE sy-vline 
WA_CRFHD_STR-INACT sy-vline 
WA_CRFHD_STR-REGISTRABLE sy-vline 
WA_CRFHD_STR-TOOL_WC_OBJTY sy-vline 
WA_CRFHD_STR-TOOL_WC_OBJID sy-vline 
WA_CRFHD_STR-TOOL_WC_WERKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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