ABAP Select data from SAP table BALTF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BALTF
*  INTO TABLE @DATA(IT_BALTF2).
*--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_BALTF INDEX 1 INTO DATA(WA_BALTF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BALTF>-MANDT = 1.
<BALTF>-BUKRS = 1.
<BALTF>-ANLN1 = 1.
<BALTF>-ANLN2 = 1.
<BALTF>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BALTF-AFABE, sy-vline,
  WA_BALTF-LNRAN, sy-vline,
  WA_BALTF-BELNR, sy-vline,
  WA_BALTF-BWASL, sy-vline,
  WA_BALTF-BZDAT, sy-vline,
  WA_BALTF-ANBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BALTF 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_BALTF 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_BALTF INTO WA_BALTF.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BALTF-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BALTF-ANLN1.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BALTF-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BALTF-BELNR.
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_BALTF_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
GJAHR TYPE STRING,
AFABE TYPE STRING,
LNRAN TYPE STRING,
BELNR TYPE STRING,
BWASL TYPE STRING,
BZDAT TYPE STRING,
ANBTR TYPE STRING,
AUFWV TYPE STRING,
INVZV TYPE STRING,
NAFAV TYPE STRING,
SAFAV TYPE STRING,
AAFAV TYPE STRING,
MAFAV TYPE STRING,
AUFNV TYPE STRING,
AUFWL TYPE STRING,
INVZL TYPE STRING,
NAFAL TYPE STRING,
SAFAL TYPE STRING,
AAFAL TYPE STRING,
MAFAL TYPE STRING,
AUFNL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BALTF_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_BALTF_STR-MANDT sy-vline 
WA_BALTF_STR-BUKRS sy-vline 
WA_BALTF_STR-ANLN1 sy-vline 
WA_BALTF_STR-ANLN2 sy-vline 
WA_BALTF_STR-GJAHR sy-vline 
WA_BALTF_STR-AFABE sy-vline 
WA_BALTF_STR-LNRAN sy-vline 
WA_BALTF_STR-BELNR sy-vline 
WA_BALTF_STR-BWASL sy-vline 
WA_BALTF_STR-BZDAT sy-vline 
WA_BALTF_STR-ANBTR sy-vline 
WA_BALTF_STR-AUFWV sy-vline 
WA_BALTF_STR-INVZV sy-vline 
WA_BALTF_STR-NAFAV sy-vline 
WA_BALTF_STR-SAFAV sy-vline 
WA_BALTF_STR-AAFAV sy-vline 
WA_BALTF_STR-MAFAV sy-vline 
WA_BALTF_STR-AUFNV sy-vline 
WA_BALTF_STR-AUFWL sy-vline 
WA_BALTF_STR-INVZL sy-vline 
WA_BALTF_STR-NAFAL sy-vline 
WA_BALTF_STR-SAFAL sy-vline 
WA_BALTF_STR-AAFAL sy-vline 
WA_BALTF_STR-MAFAL sy-vline 
WA_BALTF_STR-AUFNL sy-vline      INTO ld_text SEPARATED BY SPACE.

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