ABAP Select data from SAP table BAPINALL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPINALL
*  INTO TABLE @DATA(IT_BAPINALL2).
*--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_BAPINALL INDEX 1 INTO DATA(WA_BAPINALL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPINALL>-CLIENT = 1.
<BAPINALL>-INSTITUTION = 1.
<BAPINALL>-PATCASEID = 1.
<BAPINALL>-PATIENTID = 1.
<BAPINALL>-MAXCNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPINALL-TESTRUN, sy-vline,
  WA_BAPINALL-TRANSACT_MODE, sy-vline,
  WA_BAPINALL-WORSTRETMSG, sy-vline,
  WA_BAPINALL-XIND, sy-vline,
  WA_BAPINALL-MOVEMNT_SEQNO, sy-vline,
  WA_BAPINALL-CANCELLED_INCL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPINALL 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_BAPINALL 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_BAPINALL INTO WA_BAPINALL.


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

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

*Conversion exit ALPHA, internal->external for field PATIENTID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPINALL-PATIENTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPINALL-PATIENTID.
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_BAPINALL_STR, 
CLIENT TYPE STRING,
INSTITUTION TYPE STRING,
PATCASEID TYPE STRING,
PATIENTID TYPE STRING,
MAXCNT TYPE STRING,
TESTRUN TYPE STRING,
TRANSACT_MODE TYPE STRING,
WORSTRETMSG TYPE STRING,
XIND TYPE STRING,
MOVEMNT_SEQNO TYPE STRING,
CANCELLED_INCL TYPE STRING,
EXT_CASE_ID TYPE STRING,
EXT_MOVEMENT_ID TYPE STRING,
TEXT_REQUEST TYPE STRING,
EVENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPINALL_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_BAPINALL_STR-CLIENT sy-vline 
WA_BAPINALL_STR-INSTITUTION sy-vline 
WA_BAPINALL_STR-PATCASEID sy-vline 
WA_BAPINALL_STR-PATIENTID sy-vline 
WA_BAPINALL_STR-MAXCNT sy-vline 
WA_BAPINALL_STR-TESTRUN sy-vline 
WA_BAPINALL_STR-TRANSACT_MODE sy-vline 
WA_BAPINALL_STR-WORSTRETMSG sy-vline 
WA_BAPINALL_STR-XIND sy-vline 
WA_BAPINALL_STR-MOVEMNT_SEQNO sy-vline 
WA_BAPINALL_STR-CANCELLED_INCL sy-vline 
WA_BAPINALL_STR-EXT_CASE_ID sy-vline 
WA_BAPINALL_STR-EXT_MOVEMENT_ID sy-vline 
WA_BAPINALL_STR-TEXT_REQUEST sy-vline 
WA_BAPINALL_STR-EVENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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