ABAP Select data from SAP table CLACL_CLSMAS04 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CLACL_CLSMAS04 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 CLACL_CLSMAS04. 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 CLACL_CLSMAS04 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_CLACL_CLSMAS04 TYPE STANDARD TABLE OF CLACL_CLSMAS04,
      WA_CLACL_CLSMAS04 TYPE CLACL_CLSMAS04,
      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: <CLACL_CLSMAS04> TYPE CLACL_CLSMAS04.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CLACL_CLSMAS04.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CLACL_CLSMAS04
  INTO TABLE IT_CLACL_CLSMAS04.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLACL_CLSMAS04
*  INTO TABLE @DATA(IT_CLACL_CLSMAS042).
*--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_CLACL_CLSMAS04 INDEX 1 INTO DATA(WA_CLACL_CLSMAS042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CLACL_CLSMAS04 ASSIGNING <CLACL_CLSMAS04>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLACL_CLSMAS04>-EDIDC = 1.
<CLACL_CLSMAS04>-MANDT = 1.
<CLACL_CLSMAS04>-DOCNUM = 1.
<CLACL_CLSMAS04>-DOCREL = 1.
<CLACL_CLSMAS04>-STATUS = 1.

ENDLOOP.

LOOP AT IT_CLACL_CLSMAS04 INTO WA_CLACL_CLSMAS04.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLACL_CLSMAS04-DOCTYP, sy-vline,
  WA_CLACL_CLSMAS04-DIRECT, sy-vline,
  WA_CLACL_CLSMAS04-RCVPOR, sy-vline,
  WA_CLACL_CLSMAS04-RCVPRT, sy-vline,
  WA_CLACL_CLSMAS04-RCVPRN, sy-vline,
  WA_CLACL_CLSMAS04-RCVSAD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLACL_CLSMAS04 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_CLACL_CLSMAS04 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_CLACL_CLSMAS04 INTO WA_CLACL_CLSMAS04.


*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 RCVPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLACL_CLSMAS04-RCVPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLACL_CLSMAS04-RCVPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SNDPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLACL_CLSMAS04-SNDPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLACL_CLSMAS04-SNDPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field RCVPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_CLACL_CLSMAS04-RCVPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLACL_CLSMAS04-RCVPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field SNDPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_CLACL_CLSMAS04-SNDPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLACL_CLSMAS04-SNDPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLACL_CLSMAS04-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLACL_CLSMAS04-DOKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLACL_CLSMAS04-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLACL_CLSMAS04-AENNR.
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_CLACL_CLSMAS04_STR, 
EDIDC TYPE STRING,
MANDT TYPE STRING,
DOCNUM TYPE STRING,
DOCREL TYPE STRING,
STATUS TYPE STRING,
DOCTYP TYPE STRING,
DIRECT TYPE STRING,
RCVPOR TYPE STRING,
RCVPRT TYPE STRING,
RCVPRN TYPE STRING,
RCVSAD TYPE STRING,
RCVSMN TYPE STRING,
RCVSNA TYPE STRING,
RCVSCA TYPE STRING,
RCVSDF TYPE STRING,
RCVSLF TYPE STRING,
RCVLAD TYPE STRING,
STD TYPE STRING,
STDVRS TYPE STRING,
STDMES TYPE STRING,
MESCOD TYPE STRING,
MESFCT TYPE STRING,
OUTMOD TYPE STRING,
TEST TYPE STRING,
SNDPOR TYPE STRING,
SNDPRT TYPE STRING,
SNDPRN TYPE STRING,
SNDSAD TYPE STRING,
SNDSMN TYPE STRING,
SNDSNA TYPE STRING,
SNDSCA TYPE STRING,
SNDSDF TYPE STRING,
SNDSLF TYPE STRING,
SNDLAD TYPE STRING,
REFINT TYPE STRING,
REFGRP TYPE STRING,
REFMES TYPE STRING,
ARCKEY TYPE STRING,
CREDAT TYPE STRING,
CRETIM TYPE STRING,
MESTYP TYPE STRING,
IDOCTP TYPE STRING,
CIMTYP TYPE STRING,
RCVPFC TYPE STRING,
SNDPFC TYPE STRING,
SERIAL TYPE STRING,
EXPRSS TYPE STRING,
UPDDAT TYPE STRING,
UPDTIM TYPE STRING,
MAXSEGNUM TYPE STRING,
E1KLAHM TYPE STRING,
MSGFN TYPE STRING,
KLART TYPE STRING,
CLASS TYPE STRING,
STATU TYPE STRING,
KLAGR TYPE STRING,
BGRSE TYPE STRING,
BGRKL TYPE STRING,
BGRKP TYPE STRING,
ANAME TYPE STRING,
ADATU TYPE STRING,
VNAME TYPE STRING,
VDATU TYPE STRING,
VONDT TYPE STRING,
BISDT TYPE STRING,
PRAUS TYPE STRING,
SICHT TYPE STRING,
DOKNR TYPE STRING,
DOKAR TYPE STRING,
DOKTL TYPE STRING,
DOKVR TYPE STRING,
DINKZ TYPE STRING,
NNORM TYPE STRING,
NORMN TYPE STRING,
NORMB TYPE STRING,
NRMT1 TYPE STRING,
NRMT2 TYPE STRING,
AUSGD TYPE STRING,
VERSD TYPE STRING,
VERSI TYPE STRING,
LEIST TYPE STRING,
VERWE TYPE STRING,
SPART TYPE STRING,
WWSKZ TYPE STRING,
WWSSI TYPE STRING,
POTPR TYPE STRING,
CLOBK TYPE STRING,
CLMUL TYPE STRING,
CVIEW TYPE STRING,
DISST TYPE STRING,
MEINS TYPE STRING,
CLMOD TYPE STRING,
VWSTL TYPE STRING,
VWPLA TYPE STRING,
CLALT TYPE STRING,
LOCLA TYPE STRING,
KATALOG TYPE STRING,
E1KLATM TYPE STRING,
E1KSMLM TYPE STRING,
E1SWORM TYPE STRING,
E1CUKB3 TYPE STRING,
E1DATEM TYPE STRING,
MSGFN TYPE STRING,
KEY_DATE TYPE STRING,
AENNR TYPE STRING,
EFFECTIVITY TYPE STRING,
E1UPSLINK TYPE STRING,
UPSNAM TYPE STRING,
ORGNAM TYPE STRING,
MESTYP TYPE STRING,
OBJID TYPE STRING,
OBJVAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLACL_CLSMAS04_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_CLACL_CLSMAS04_STR-EDIDC sy-vline 
WA_CLACL_CLSMAS04_STR-MANDT sy-vline 
WA_CLACL_CLSMAS04_STR-DOCNUM sy-vline 
WA_CLACL_CLSMAS04_STR-DOCREL sy-vline 
WA_CLACL_CLSMAS04_STR-STATUS sy-vline 
WA_CLACL_CLSMAS04_STR-DOCTYP sy-vline 
WA_CLACL_CLSMAS04_STR-DIRECT sy-vline 
WA_CLACL_CLSMAS04_STR-RCVPOR sy-vline 
WA_CLACL_CLSMAS04_STR-RCVPRT sy-vline 
WA_CLACL_CLSMAS04_STR-RCVPRN sy-vline 
WA_CLACL_CLSMAS04_STR-RCVSAD sy-vline 
WA_CLACL_CLSMAS04_STR-RCVSMN sy-vline 
WA_CLACL_CLSMAS04_STR-RCVSNA sy-vline 
WA_CLACL_CLSMAS04_STR-RCVSCA sy-vline 
WA_CLACL_CLSMAS04_STR-RCVSDF sy-vline 
WA_CLACL_CLSMAS04_STR-RCVSLF sy-vline 
WA_CLACL_CLSMAS04_STR-RCVLAD sy-vline 
WA_CLACL_CLSMAS04_STR-STD sy-vline 
WA_CLACL_CLSMAS04_STR-STDVRS sy-vline 
WA_CLACL_CLSMAS04_STR-STDMES sy-vline 
WA_CLACL_CLSMAS04_STR-MESCOD sy-vline 
WA_CLACL_CLSMAS04_STR-MESFCT sy-vline 
WA_CLACL_CLSMAS04_STR-OUTMOD sy-vline 
WA_CLACL_CLSMAS04_STR-TEST sy-vline 
WA_CLACL_CLSMAS04_STR-SNDPOR sy-vline 
WA_CLACL_CLSMAS04_STR-SNDPRT sy-vline 
WA_CLACL_CLSMAS04_STR-SNDPRN sy-vline 
WA_CLACL_CLSMAS04_STR-SNDSAD sy-vline 
WA_CLACL_CLSMAS04_STR-SNDSMN sy-vline 
WA_CLACL_CLSMAS04_STR-SNDSNA sy-vline 
WA_CLACL_CLSMAS04_STR-SNDSCA sy-vline 
WA_CLACL_CLSMAS04_STR-SNDSDF sy-vline 
WA_CLACL_CLSMAS04_STR-SNDSLF sy-vline 
WA_CLACL_CLSMAS04_STR-SNDLAD sy-vline 
WA_CLACL_CLSMAS04_STR-REFINT sy-vline 
WA_CLACL_CLSMAS04_STR-REFGRP sy-vline 
WA_CLACL_CLSMAS04_STR-REFMES sy-vline 
WA_CLACL_CLSMAS04_STR-ARCKEY sy-vline 
WA_CLACL_CLSMAS04_STR-CREDAT sy-vline 
WA_CLACL_CLSMAS04_STR-CRETIM sy-vline 
WA_CLACL_CLSMAS04_STR-MESTYP sy-vline 
WA_CLACL_CLSMAS04_STR-IDOCTP sy-vline 
WA_CLACL_CLSMAS04_STR-CIMTYP sy-vline 
WA_CLACL_CLSMAS04_STR-RCVPFC sy-vline 
WA_CLACL_CLSMAS04_STR-SNDPFC sy-vline 
WA_CLACL_CLSMAS04_STR-SERIAL sy-vline 
WA_CLACL_CLSMAS04_STR-EXPRSS sy-vline 
WA_CLACL_CLSMAS04_STR-UPDDAT sy-vline 
WA_CLACL_CLSMAS04_STR-UPDTIM sy-vline 
WA_CLACL_CLSMAS04_STR-MAXSEGNUM sy-vline 
WA_CLACL_CLSMAS04_STR-E1KLAHM sy-vline 
WA_CLACL_CLSMAS04_STR-MSGFN sy-vline 
WA_CLACL_CLSMAS04_STR-KLART sy-vline 
WA_CLACL_CLSMAS04_STR-CLASS sy-vline 
WA_CLACL_CLSMAS04_STR-STATU sy-vline 
WA_CLACL_CLSMAS04_STR-KLAGR sy-vline 
WA_CLACL_CLSMAS04_STR-BGRSE sy-vline 
WA_CLACL_CLSMAS04_STR-BGRKL sy-vline 
WA_CLACL_CLSMAS04_STR-BGRKP sy-vline 
WA_CLACL_CLSMAS04_STR-ANAME sy-vline 
WA_CLACL_CLSMAS04_STR-ADATU sy-vline 
WA_CLACL_CLSMAS04_STR-VNAME sy-vline 
WA_CLACL_CLSMAS04_STR-VDATU sy-vline 
WA_CLACL_CLSMAS04_STR-VONDT sy-vline 
WA_CLACL_CLSMAS04_STR-BISDT sy-vline 
WA_CLACL_CLSMAS04_STR-PRAUS sy-vline 
WA_CLACL_CLSMAS04_STR-SICHT sy-vline 
WA_CLACL_CLSMAS04_STR-DOKNR sy-vline 
WA_CLACL_CLSMAS04_STR-DOKAR sy-vline 
WA_CLACL_CLSMAS04_STR-DOKTL sy-vline 
WA_CLACL_CLSMAS04_STR-DOKVR sy-vline 
WA_CLACL_CLSMAS04_STR-DINKZ sy-vline 
WA_CLACL_CLSMAS04_STR-NNORM sy-vline 
WA_CLACL_CLSMAS04_STR-NORMN sy-vline 
WA_CLACL_CLSMAS04_STR-NORMB sy-vline 
WA_CLACL_CLSMAS04_STR-NRMT1 sy-vline 
WA_CLACL_CLSMAS04_STR-NRMT2 sy-vline 
WA_CLACL_CLSMAS04_STR-AUSGD sy-vline 
WA_CLACL_CLSMAS04_STR-VERSD sy-vline 
WA_CLACL_CLSMAS04_STR-VERSI sy-vline 
WA_CLACL_CLSMAS04_STR-LEIST sy-vline 
WA_CLACL_CLSMAS04_STR-VERWE sy-vline 
WA_CLACL_CLSMAS04_STR-SPART sy-vline 
WA_CLACL_CLSMAS04_STR-WWSKZ sy-vline 
WA_CLACL_CLSMAS04_STR-WWSSI sy-vline 
WA_CLACL_CLSMAS04_STR-POTPR sy-vline 
WA_CLACL_CLSMAS04_STR-CLOBK sy-vline 
WA_CLACL_CLSMAS04_STR-CLMUL sy-vline 
WA_CLACL_CLSMAS04_STR-CVIEW sy-vline 
WA_CLACL_CLSMAS04_STR-DISST sy-vline 
WA_CLACL_CLSMAS04_STR-MEINS sy-vline 
WA_CLACL_CLSMAS04_STR-CLMOD sy-vline 
WA_CLACL_CLSMAS04_STR-VWSTL sy-vline 
WA_CLACL_CLSMAS04_STR-VWPLA sy-vline 
WA_CLACL_CLSMAS04_STR-CLALT sy-vline 
WA_CLACL_CLSMAS04_STR-LOCLA sy-vline 
WA_CLACL_CLSMAS04_STR-KATALOG sy-vline 
WA_CLACL_CLSMAS04_STR-E1KLATM sy-vline 
WA_CLACL_CLSMAS04_STR-E1KSMLM sy-vline 
WA_CLACL_CLSMAS04_STR-E1SWORM sy-vline 
WA_CLACL_CLSMAS04_STR-E1CUKB3 sy-vline 
WA_CLACL_CLSMAS04_STR-E1DATEM sy-vline 
WA_CLACL_CLSMAS04_STR-MSGFN sy-vline 
WA_CLACL_CLSMAS04_STR-KEY_DATE sy-vline 
WA_CLACL_CLSMAS04_STR-AENNR sy-vline 
WA_CLACL_CLSMAS04_STR-EFFECTIVITY sy-vline 
WA_CLACL_CLSMAS04_STR-E1UPSLINK sy-vline 
WA_CLACL_CLSMAS04_STR-UPSNAM sy-vline 
WA_CLACL_CLSMAS04_STR-ORGNAM sy-vline 
WA_CLACL_CLSMAS04_STR-MESTYP sy-vline 
WA_CLACL_CLSMAS04_STR-OBJID sy-vline 
WA_CLACL_CLSMAS04_STR-OBJVAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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