ABAP Select data from SAP table T7ARM4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7ARM4 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 T7ARM4. 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 T7ARM4 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_T7ARM4 TYPE STANDARD TABLE OF T7ARM4,
      WA_T7ARM4 TYPE T7ARM4,
      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: <T7ARM4> TYPE T7ARM4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7ARM4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7ARM4
  INTO TABLE IT_T7ARM4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7ARM4
*  INTO TABLE @DATA(IT_T7ARM42).
*--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_T7ARM4 INDEX 1 INTO DATA(WA_T7ARM42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7ARM4 ASSIGNING <T7ARM4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7ARM4>-MANDT = 1.
<T7ARM4>-CCUIE = 1.
<T7ARM4>-EXENR = 1.
<T7ARM4>-SEQNR = 1.
<T7ARM4>-FECIN = 1.

ENDLOOP.

LOOP AT IT_T7ARM4 INTO WA_T7ARM4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7ARM4-GEKEY, sy-vline,
  WA_T7ARM4-TIPRG, sy-vline,
  WA_T7ARM4-CODMV, sy-vline,
  WA_T7ARM4-CCUIL, sy-vline,
  WA_T7ARM4-CUILV, sy-vline,
  WA_T7ARM4-CDEVT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7ARM4 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_T7ARM4 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_T7ARM4 INTO WA_T7ARM4.


*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 CCUIL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7ARM4-CCUIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7ARM4-CCUIL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUILV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7ARM4-CUILV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7ARM4-CUILV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7ARM4-NRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7ARM4-NRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOCAD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7ARM4-LOCAD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7ARM4-LOCAD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NRJUZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7ARM4-NRJUZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7ARM4-NRJUZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NRSEC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7ARM4-NRSEC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7ARM4-NRSEC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EANOV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7ARM4-EANOV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7ARM4-EANOV.
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_T7ARM4_STR, 
MANDT TYPE STRING,
CCUIE TYPE STRING,
EXENR TYPE STRING,
SEQNR TYPE STRING,
FECIN TYPE STRING,
GEKEY TYPE STRING,
TIPRG TYPE STRING,
CODMV TYPE STRING,
CCUIL TYPE STRING,
CUILV TYPE STRING,
CDEVT TYPE STRING,
FEINV TYPE STRING,
FEDOC TYPE STRING,
TOMOV TYPE STRING,
FOLIO TYPE STRING,
NRACT TYPE STRING,
CPAIS TYPE STRING,
PROVN TYPE STRING,
LOCAD TYPE STRING,
COMUN TYPE STRING,
TRBUN TYPE STRING,
NRJUZ TYPE STRING,
NRSEC TYPE STRING,
EANOV TYPE STRING,
ETIPO TYPE STRING,
ENIVE TYPE STRING,
EGRAD TYPE STRING,
TXTDJ TYPE STRING,
CDDOC TYPE STRING,
CDDEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7ARM4_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_T7ARM4_STR-MANDT sy-vline 
WA_T7ARM4_STR-CCUIE sy-vline 
WA_T7ARM4_STR-EXENR sy-vline 
WA_T7ARM4_STR-SEQNR sy-vline 
WA_T7ARM4_STR-FECIN sy-vline 
WA_T7ARM4_STR-GEKEY sy-vline 
WA_T7ARM4_STR-TIPRG sy-vline 
WA_T7ARM4_STR-CODMV sy-vline 
WA_T7ARM4_STR-CCUIL sy-vline 
WA_T7ARM4_STR-CUILV sy-vline 
WA_T7ARM4_STR-CDEVT sy-vline 
WA_T7ARM4_STR-FEINV sy-vline 
WA_T7ARM4_STR-FEDOC sy-vline 
WA_T7ARM4_STR-TOMOV sy-vline 
WA_T7ARM4_STR-FOLIO sy-vline 
WA_T7ARM4_STR-NRACT sy-vline 
WA_T7ARM4_STR-CPAIS sy-vline 
WA_T7ARM4_STR-PROVN sy-vline 
WA_T7ARM4_STR-LOCAD sy-vline 
WA_T7ARM4_STR-COMUN sy-vline 
WA_T7ARM4_STR-TRBUN sy-vline 
WA_T7ARM4_STR-NRJUZ sy-vline 
WA_T7ARM4_STR-NRSEC sy-vline 
WA_T7ARM4_STR-EANOV sy-vline 
WA_T7ARM4_STR-ETIPO sy-vline 
WA_T7ARM4_STR-ENIVE sy-vline 
WA_T7ARM4_STR-EGRAD sy-vline 
WA_T7ARM4_STR-TXTDJ sy-vline 
WA_T7ARM4_STR-CDDOC sy-vline 
WA_T7ARM4_STR-CDDEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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