ABAP Select data from SAP table BAPI1420ACTIVITY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPI1420ACTIVITY 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 BAPI1420ACTIVITY. 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 BAPI1420ACTIVITY 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_BAPI1420ACTIVITY TYPE STANDARD TABLE OF BAPI1420ACTIVITY,
      WA_BAPI1420ACTIVITY TYPE BAPI1420ACTIVITY,
      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: <BAPI1420ACTIVITY> TYPE BAPI1420ACTIVITY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPI1420ACTIVITY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPI1420ACTIVITY
  INTO TABLE IT_BAPI1420ACTIVITY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI1420ACTIVITY
*  INTO TABLE @DATA(IT_BAPI1420ACTIVITY2).
*--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_BAPI1420ACTIVITY INDEX 1 INTO DATA(WA_BAPI1420ACTIVITY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPI1420ACTIVITY ASSIGNING <BAPI1420ACTIVITY>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI1420ACTIVITY>-PATPATHID = 1.
<BAPI1420ACTIVITY>-STEPID = 1.
<BAPI1420ACTIVITY>-ACTIVITY_ID = 1.
<BAPI1420ACTIVITY>-ORGUNIT = 1.
<BAPI1420ACTIVITY>-ORGUNIT_NAME = 1.

ENDLOOP.

LOOP AT IT_BAPI1420ACTIVITY INTO WA_BAPI1420ACTIVITY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI1420ACTIVITY-EMR, sy-vline,
  WA_BAPI1420ACTIVITY-EMR_EXT, sy-vline,
  WA_BAPI1420ACTIVITY-ACTIVITY_HAS_NOTE, sy-vline,
  WA_BAPI1420ACTIVITY-ACTIVITY_CATEGORY, sy-vline,
  WA_BAPI1420ACTIVITY-ACTIVITY_TYPE, sy-vline,
  WA_BAPI1420ACTIVITY-ACTIVITY_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI1420ACTIVITY 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_BAPI1420ACTIVITY 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_BAPI1420ACTIVITY INTO WA_BAPI1420ACTIVITY.


*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 ORGUNIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1420ACTIVITY-ORGUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1420ACTIVITY-ORGUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1420ACTIVITY-EMR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1420ACTIVITY-EMR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSTITUTION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1420ACTIVITY-INSTITUTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1420ACTIVITY-INSTITUTION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PATCASEID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI1420ACTIVITY-PATCASEID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI1420ACTIVITY-PATCASEID.
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_BAPI1420ACTIVITY_STR, 
PATPATHID TYPE STRING,
STEPID TYPE STRING,
ACTIVITY_ID TYPE STRING,
ORGUNIT TYPE STRING,
ORGUNIT_NAME TYPE STRING,
EMR TYPE STRING,
EMR_EXT TYPE STRING,
ACTIVITY_HAS_NOTE TYPE STRING,
ACTIVITY_CATEGORY TYPE STRING,
ACTIVITY_TYPE TYPE STRING,
ACTIVITY_DATE TYPE STRING,
ACTIVITY_TIME TYPE STRING,
INSTITUTION TYPE STRING,
PATCASEID TYPE STRING,
ACTIVITY_TYPE_EXT TYPE STRING,
ACTIVITY_CATEGORY_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI1420ACTIVITY_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_BAPI1420ACTIVITY_STR-PATPATHID sy-vline 
WA_BAPI1420ACTIVITY_STR-STEPID sy-vline 
WA_BAPI1420ACTIVITY_STR-ACTIVITY_ID sy-vline 
WA_BAPI1420ACTIVITY_STR-ORGUNIT sy-vline 
WA_BAPI1420ACTIVITY_STR-ORGUNIT_NAME sy-vline 
WA_BAPI1420ACTIVITY_STR-EMR sy-vline 
WA_BAPI1420ACTIVITY_STR-EMR_EXT sy-vline 
WA_BAPI1420ACTIVITY_STR-ACTIVITY_HAS_NOTE sy-vline 
WA_BAPI1420ACTIVITY_STR-ACTIVITY_CATEGORY sy-vline 
WA_BAPI1420ACTIVITY_STR-ACTIVITY_TYPE sy-vline 
WA_BAPI1420ACTIVITY_STR-ACTIVITY_DATE sy-vline 
WA_BAPI1420ACTIVITY_STR-ACTIVITY_TIME sy-vline 
WA_BAPI1420ACTIVITY_STR-INSTITUTION sy-vline 
WA_BAPI1420ACTIVITY_STR-PATCASEID sy-vline 
WA_BAPI1420ACTIVITY_STR-ACTIVITY_TYPE_EXT sy-vline 
WA_BAPI1420ACTIVITY_STR-ACTIVITY_CATEGORY_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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