ABAP Select data from SAP table BAPIACAM04 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIACAM04 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 BAPIACAM04. 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 BAPIACAM04 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_BAPIACAM04 TYPE STANDARD TABLE OF BAPIACAM04,
      WA_BAPIACAM04 TYPE BAPIACAM04,
      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: <BAPIACAM04> TYPE BAPIACAM04.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPIACAM04.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPIACAM04
  INTO TABLE IT_BAPIACAM04.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIACAM04
*  INTO TABLE @DATA(IT_BAPIACAM042).
*--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_BAPIACAM04 INDEX 1 INTO DATA(WA_BAPIACAM042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPIACAM04 ASSIGNING <BAPIACAM04>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIACAM04>-COMP_CODE = 1.
<BAPIACAM04>-ASSETMAINNO = 1.
<BAPIACAM04>-ASSETSUBNO = 1.
<BAPIACAM04>-VAL_END_DT = 1.
<BAPIACAM04>-VAL_BEG_DT = 1.

ENDLOOP.

LOOP AT IT_BAPIACAM04 INTO WA_BAPIACAM04.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIACAM04-COSTCENTER, sy-vline,
  WA_BAPIACAM04-PLANT, sy-vline,
  WA_BAPIACAM04-BUS_AREA, sy-vline,
  WA_BAPIACAM04-ACTTYPE, sy-vline,
  WA_BAPIACAM04-SHIFT_FACT, sy-vline,
  WA_BAPIACAM04-SHTDWN_IND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIACAM04 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_BAPIACAM04 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_BAPIACAM04 INTO WA_BAPIACAM04.


*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 ASSETMAINNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-ASSETMAINNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-ASSETMAINNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ASSETSUBNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-ASSETSUBNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-ASSETSUBNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INTERN_ORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-INTERN_ORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-INTERN_ORD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAIN_ORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-MAIN_ORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-MAIN_ORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field MAINT_PROJ
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-MAINT_PROJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-MAINT_PROJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RESP_COSTC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-RESP_COSTC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-RESP_COSTC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR_APC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-GRANT_NBR_APC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-GRANT_NBR_APC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field WBS_ELEM_COST
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-WBS_ELEM_COST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-WBS_ELEM_COST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field RL_EST_KEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-RL_EST_KEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-RL_EST_KEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFIT_CTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIACAM04-PROFIT_CTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIACAM04-PROFIT_CTR.
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_BAPIACAM04_STR, 
COMP_CODE TYPE STRING,
ASSETMAINNO TYPE STRING,
ASSETSUBNO TYPE STRING,
VAL_END_DT TYPE STRING,
VAL_BEG_DT TYPE STRING,
COSTCENTER TYPE STRING,
PLANT TYPE STRING,
BUS_AREA TYPE STRING,
ACTTYPE TYPE STRING,
SHIFT_FACT TYPE STRING,
SHTDWN_IND TYPE STRING,
LOCATION TYPE STRING,
INTERN_ORD TYPE STRING,
MAINTROOM TYPE STRING,
MAIN_ORDER TYPE STRING,
FUNCT_LOC TYPE STRING,
TAXJURCODE TYPE STRING,
MAINT_PROJ TYPE STRING,
PLATE_NO TYPE STRING,
PERSON_NO TYPE STRING,
RESP_COSTC TYPE STRING,
FUND TYPE STRING,
FUNC_AREA TYPE STRING,
GRANT_NBR TYPE STRING,
FUND_APC TYPE STRING,
FUNC_AREA_APC TYPE STRING,
GRANT_NBR_APC TYPE STRING,
WBS_ELEM_COST TYPE STRING,
FUNDS_CTR TYPE STRING,
FUNDS_CTR_APC TYPE STRING,
RL_EST_KEY TYPE STRING,
BUDGET_PERIOD TYPE STRING,
BUDGET_PERIOD_APC TYPE STRING,
SEGMENT TYPE STRING,
PROFIT_CTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIACAM04_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_BAPIACAM04_STR-COMP_CODE sy-vline 
WA_BAPIACAM04_STR-ASSETMAINNO sy-vline 
WA_BAPIACAM04_STR-ASSETSUBNO sy-vline 
WA_BAPIACAM04_STR-VAL_END_DT sy-vline 
WA_BAPIACAM04_STR-VAL_BEG_DT sy-vline 
WA_BAPIACAM04_STR-COSTCENTER sy-vline 
WA_BAPIACAM04_STR-PLANT sy-vline 
WA_BAPIACAM04_STR-BUS_AREA sy-vline 
WA_BAPIACAM04_STR-ACTTYPE sy-vline 
WA_BAPIACAM04_STR-SHIFT_FACT sy-vline 
WA_BAPIACAM04_STR-SHTDWN_IND sy-vline 
WA_BAPIACAM04_STR-LOCATION sy-vline 
WA_BAPIACAM04_STR-INTERN_ORD sy-vline 
WA_BAPIACAM04_STR-MAINTROOM sy-vline 
WA_BAPIACAM04_STR-MAIN_ORDER sy-vline 
WA_BAPIACAM04_STR-FUNCT_LOC sy-vline 
WA_BAPIACAM04_STR-TAXJURCODE sy-vline 
WA_BAPIACAM04_STR-MAINT_PROJ sy-vline 
WA_BAPIACAM04_STR-PLATE_NO sy-vline 
WA_BAPIACAM04_STR-PERSON_NO sy-vline 
WA_BAPIACAM04_STR-RESP_COSTC sy-vline 
WA_BAPIACAM04_STR-FUND sy-vline 
WA_BAPIACAM04_STR-FUNC_AREA sy-vline 
WA_BAPIACAM04_STR-GRANT_NBR sy-vline 
WA_BAPIACAM04_STR-FUND_APC sy-vline 
WA_BAPIACAM04_STR-FUNC_AREA_APC sy-vline 
WA_BAPIACAM04_STR-GRANT_NBR_APC sy-vline 
WA_BAPIACAM04_STR-WBS_ELEM_COST sy-vline 
WA_BAPIACAM04_STR-FUNDS_CTR sy-vline 
WA_BAPIACAM04_STR-FUNDS_CTR_APC sy-vline 
WA_BAPIACAM04_STR-RL_EST_KEY sy-vline 
WA_BAPIACAM04_STR-BUDGET_PERIOD sy-vline 
WA_BAPIACAM04_STR-BUDGET_PERIOD_APC sy-vline 
WA_BAPIACAM04_STR-SEGMENT sy-vline 
WA_BAPIACAM04_STR-PROFIT_CTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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