ABAP Select data from SAP table TF691 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TF691 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 TF691. 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 TF691 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_TF691 TYPE STANDARD TABLE OF TF691,
      WA_TF691 TYPE TF691,
      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: <TF691> TYPE TF691.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TF691.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TF691
  INTO TABLE IT_TF691.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TF691
*  INTO TABLE @DATA(IT_TF6912).
*--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_TF691 INDEX 1 INTO DATA(WA_TF6912).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TF691 ASSIGNING <TF691>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TF691>-MANDT = 1.
<TF691>-DIMEN = 1.
<TF691>-COILV = 1.
<TF691>-INVVAL = 1.
<TF691>-EQUVAL = 1.

ENDLOOP.

LOOP AT IT_TF691 INTO WA_TF691.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TF691-EQIVAL, sy-vline,
  WA_TF691-ESHFLG, sy-vline,
  WA_TF691-ESHSIT, sy-vline,
  WA_TF691-ESHMDS, sy-vline,
  WA_TF691-ESHMCS, sy-vline,
  WA_TF691-NIPDFLG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TF691 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_TF691 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_TF691 INTO WA_TF691.


*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 GJAHR, internal->external for field LDTYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TF691-LDTYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF691-LDTYR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field GWALVAL
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_TF691-GWALVAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF691-GWALVAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field GWRLVAL
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_TF691-GWRLVAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF691-GWRLVAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field NGALVAL
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_TF691-NGALVAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF691-NGALVAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field NGRLVAL
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_TF691-NGRLVAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF691-NGRLVAL.
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_TF691_STR, 
MANDT TYPE STRING,
DIMEN TYPE STRING,
COILV TYPE STRING,
INVVAL TYPE STRING,
EQUVAL TYPE STRING,
EQIVAL TYPE STRING,
ESHFLG TYPE STRING,
ESHSIT TYPE STRING,
ESHMDS TYPE STRING,
ESHMCS TYPE STRING,
NIPDFLG TYPE STRING,
NIIDFLG TYPE STRING,
ASSDT TYPE STRING,
PUACHK TYPE STRING,
XRINDGWBS TYPE STRING,
XRINDGWIS TYPE STRING,
CTKEYGWIS TYPE STRING,
GWTBEGFLG TYPE STRING,
GWPROCDA TYPE STRING,
GWPROCIA TYPE STRING,
NGPROCDA TYPE STRING,
NGPROCIA TYPE STRING,
LDTYR TYPE STRING,
LDTPE TYPE STRING,
NINVFLG TYPE STRING,
NMINFLG TYPE STRING,
HRREV TYPE STRING,
HRSHA TYPE STRING,
HRSITYP TYPE STRING,
HRAQDSI TYPE STRING,
HRDPCSI TYPE STRING,
HRDPDSI TYPE STRING,
NHSITYP TYPE STRING,
NHAQCSI TYPE STRING,
NHDPDSI TYPE STRING,
NHDPCSI TYPE STRING,
GWAYR TYPE STRING,
GWAPE TYPE STRING,
GWABG TYPE STRING,
GWARFLG TYPE STRING,
GWALFLG TYPE STRING,
GWALVAL TYPE STRING,
GWALCUR TYPE STRING,
GWAMETH TYPE STRING,
GWRYR TYPE STRING,
GWRPE TYPE STRING,
GWRBG TYPE STRING,
GWRRFLG TYPE STRING,
GWRLFLG TYPE STRING,
GWRLVAL TYPE STRING,
GWRLCUR TYPE STRING,
GWRMETH TYPE STRING,
NGAYR TYPE STRING,
NGAPE TYPE STRING,
NGABG TYPE STRING,
NGARFLG TYPE STRING,
NGALFLG TYPE STRING,
NGALVAL TYPE STRING,
NGALCUR TYPE STRING,
NGAMETH TYPE STRING,
NGRYR TYPE STRING,
NGRPE TYPE STRING,
NGRBG TYPE STRING,
NGRRFLG TYPE STRING,
NGRLFLG TYPE STRING,
NGRLVAL TYPE STRING,
NGRLCUR TYPE STRING,
NGRMETH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TF691_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_TF691_STR-MANDT sy-vline 
WA_TF691_STR-DIMEN sy-vline 
WA_TF691_STR-COILV sy-vline 
WA_TF691_STR-INVVAL sy-vline 
WA_TF691_STR-EQUVAL sy-vline 
WA_TF691_STR-EQIVAL sy-vline 
WA_TF691_STR-ESHFLG sy-vline 
WA_TF691_STR-ESHSIT sy-vline 
WA_TF691_STR-ESHMDS sy-vline 
WA_TF691_STR-ESHMCS sy-vline 
WA_TF691_STR-NIPDFLG sy-vline 
WA_TF691_STR-NIIDFLG sy-vline 
WA_TF691_STR-ASSDT sy-vline 
WA_TF691_STR-PUACHK sy-vline 
WA_TF691_STR-XRINDGWBS sy-vline 
WA_TF691_STR-XRINDGWIS sy-vline 
WA_TF691_STR-CTKEYGWIS sy-vline 
WA_TF691_STR-GWTBEGFLG sy-vline 
WA_TF691_STR-GWPROCDA sy-vline 
WA_TF691_STR-GWPROCIA sy-vline 
WA_TF691_STR-NGPROCDA sy-vline 
WA_TF691_STR-NGPROCIA sy-vline 
WA_TF691_STR-LDTYR sy-vline 
WA_TF691_STR-LDTPE sy-vline 
WA_TF691_STR-NINVFLG sy-vline 
WA_TF691_STR-NMINFLG sy-vline 
WA_TF691_STR-HRREV sy-vline 
WA_TF691_STR-HRSHA sy-vline 
WA_TF691_STR-HRSITYP sy-vline 
WA_TF691_STR-HRAQDSI sy-vline 
WA_TF691_STR-HRDPCSI sy-vline 
WA_TF691_STR-HRDPDSI sy-vline 
WA_TF691_STR-NHSITYP sy-vline 
WA_TF691_STR-NHAQCSI sy-vline 
WA_TF691_STR-NHDPDSI sy-vline 
WA_TF691_STR-NHDPCSI sy-vline 
WA_TF691_STR-GWAYR sy-vline 
WA_TF691_STR-GWAPE sy-vline 
WA_TF691_STR-GWABG sy-vline 
WA_TF691_STR-GWARFLG sy-vline 
WA_TF691_STR-GWALFLG sy-vline 
WA_TF691_STR-GWALVAL sy-vline 
WA_TF691_STR-GWALCUR sy-vline 
WA_TF691_STR-GWAMETH sy-vline 
WA_TF691_STR-GWRYR sy-vline 
WA_TF691_STR-GWRPE sy-vline 
WA_TF691_STR-GWRBG sy-vline 
WA_TF691_STR-GWRRFLG sy-vline 
WA_TF691_STR-GWRLFLG sy-vline 
WA_TF691_STR-GWRLVAL sy-vline 
WA_TF691_STR-GWRLCUR sy-vline 
WA_TF691_STR-GWRMETH sy-vline 
WA_TF691_STR-NGAYR sy-vline 
WA_TF691_STR-NGAPE sy-vline 
WA_TF691_STR-NGABG sy-vline 
WA_TF691_STR-NGARFLG sy-vline 
WA_TF691_STR-NGALFLG sy-vline 
WA_TF691_STR-NGALVAL sy-vline 
WA_TF691_STR-NGALCUR sy-vline 
WA_TF691_STR-NGAMETH sy-vline 
WA_TF691_STR-NGRYR sy-vline 
WA_TF691_STR-NGRPE sy-vline 
WA_TF691_STR-NGRBG sy-vline 
WA_TF691_STR-NGRRFLG sy-vline 
WA_TF691_STR-NGRLFLG sy-vline 
WA_TF691_STR-NGRLVAL sy-vline 
WA_TF691_STR-NGRLCUR sy-vline 
WA_TF691_STR-NGRMETH sy-vline      INTO ld_text SEPARATED BY SPACE.

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