ABAP Select data from SAP table BAPIBUS1600_S_POS_PERIOD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIBUS1600_S_POS_PERIOD 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 BAPIBUS1600_S_POS_PERIOD. 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 BAPIBUS1600_S_POS_PERIOD 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_BAPIBUS1600_S_POS_PERIOD TYPE STANDARD TABLE OF BAPIBUS1600_S_POS_PERIOD,
      WA_BAPIBUS1600_S_POS_PERIOD TYPE BAPIBUS1600_S_POS_PERIOD,
      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: <BAPIBUS1600_S_POS_PERIOD> TYPE BAPIBUS1600_S_POS_PERIOD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPIBUS1600_S_POS_PERIOD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPIBUS1600_S_POS_PERIOD
  INTO TABLE IT_BAPIBUS1600_S_POS_PERIOD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIBUS1600_S_POS_PERIOD
*  INTO TABLE @DATA(IT_BAPIBUS1600_S_POS_PERIOD2).
*--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_BAPIBUS1600_S_POS_PERIOD INDEX 1 INTO DATA(WA_BAPIBUS1600_S_POS_PERIOD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPIBUS1600_S_POS_PERIOD ASSIGNING <BAPIBUS1600_S_POS_PERIOD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIBUS1600_S_POS_PERIOD>-POSNR = 1.
<BAPIBUS1600_S_POS_PERIOD>-GL_ACCOUNT = 1.
<BAPIBUS1600_S_POS_PERIOD>-HSLVT = 1.
<BAPIBUS1600_S_POS_PERIOD>-HSL01 = 1.
<BAPIBUS1600_S_POS_PERIOD>-HSL02 = 1.

ENDLOOP.

LOOP AT IT_BAPIBUS1600_S_POS_PERIOD INTO WA_BAPIBUS1600_S_POS_PERIOD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIBUS1600_S_POS_PERIOD-HSL03, sy-vline,
  WA_BAPIBUS1600_S_POS_PERIOD-HSL04, sy-vline,
  WA_BAPIBUS1600_S_POS_PERIOD-HSL05, sy-vline,
  WA_BAPIBUS1600_S_POS_PERIOD-HSL06, sy-vline,
  WA_BAPIBUS1600_S_POS_PERIOD-HSL07, sy-vline,
  WA_BAPIBUS1600_S_POS_PERIOD-HSL08, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIBUS1600_S_POS_PERIOD 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_BAPIBUS1600_S_POS_PERIOD 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_BAPIBUS1600_S_POS_PERIOD INTO WA_BAPIBUS1600_S_POS_PERIOD.


*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 GL_ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-GL_ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-GL_ACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASE_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-BASE_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-BASE_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFIT_CTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-PROFIT_CTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-PROFIT_CTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEND_CCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-SEND_CCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-SEND_CCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PART_PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-PART_PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-PART_PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRADE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-TRADE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-TRADE_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPIBUS1600_S_POS_PERIOD-PARTNER_SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIBUS1600_S_POS_PERIOD-PARTNER_SEGMENT.
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_BAPIBUS1600_S_POS_PERIOD_STR, 
POSNR TYPE STRING,
GL_ACCOUNT TYPE STRING,
HSLVT TYPE STRING,
HSL01 TYPE STRING,
HSL02 TYPE STRING,
HSL03 TYPE STRING,
HSL04 TYPE STRING,
HSL05 TYPE STRING,
HSL06 TYPE STRING,
HSL07 TYPE STRING,
HSL08 TYPE STRING,
HSL09 TYPE STRING,
HSL10 TYPE STRING,
HSL11 TYPE STRING,
HSL12 TYPE STRING,
HSL13 TYPE STRING,
HSL14 TYPE STRING,
HSL15 TYPE STRING,
HSL16 TYPE STRING,
BASE_UOM_ISO TYPE STRING,
BASE_UOM TYPE STRING,
MSLVT TYPE STRING,
MSL01 TYPE STRING,
MSL02 TYPE STRING,
MSL03 TYPE STRING,
MSL04 TYPE STRING,
MSL05 TYPE STRING,
MSL06 TYPE STRING,
MSL07 TYPE STRING,
MSL08 TYPE STRING,
MSL09 TYPE STRING,
MSL10 TYPE STRING,
MSL11 TYPE STRING,
MSL12 TYPE STRING,
MSL13 TYPE STRING,
MSL14 TYPE STRING,
MSL15 TYPE STRING,
MSL16 TYPE STRING,
RPMAX TYPE STRING,
COSTCENTER TYPE STRING,
PROFIT_CTR TYPE STRING,
FUNC_AREA TYPE STRING,
BUS_AREA TYPE STRING,
CO_AREA TYPE STRING,
SEND_CCTR TYPE STRING,
PART_PRCTR TYPE STRING,
PARTNER_FUNC_AREA TYPE STRING,
TR_PART_BA TYPE STRING,
TRADE_ID TYPE STRING,
CS_TRANS_T TYPE STRING,
SEGMENT TYPE STRING,
PARTNER_SEGMENT TYPE STRING,
HSLVT_LONG TYPE STRING,
HSL01_LONG TYPE STRING,
HSL02_LONG TYPE STRING,
HSL03_LONG TYPE STRING,
HSL04_LONG TYPE STRING,
HSL05_LONG TYPE STRING,
HSL06_LONG TYPE STRING,
HSL07_LONG TYPE STRING,
HSL08_LONG TYPE STRING,
HSL09_LONG TYPE STRING,
HSL10_LONG TYPE STRING,
HSL11_LONG TYPE STRING,
HSL12_LONG TYPE STRING,
HSL13_LONG TYPE STRING,
HSL14_LONG TYPE STRING,
HSL15_LONG TYPE STRING,
HSL16_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIBUS1600_S_POS_PERIOD_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_BAPIBUS1600_S_POS_PERIOD_STR-POSNR sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-GL_ACCOUNT sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSLVT sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL01 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL02 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL03 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL04 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL05 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL06 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL07 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL08 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL09 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL10 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL11 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL12 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL13 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL14 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL15 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL16 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-BASE_UOM_ISO sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-BASE_UOM sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSLVT sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL01 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL02 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL03 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL04 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL05 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL06 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL07 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL08 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL09 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL10 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL11 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL12 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL13 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL14 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL15 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-MSL16 sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-RPMAX sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-COSTCENTER sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-PROFIT_CTR sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-FUNC_AREA sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-BUS_AREA sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-CO_AREA sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-SEND_CCTR sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-PART_PRCTR sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-PARTNER_FUNC_AREA sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-TR_PART_BA sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-TRADE_ID sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-CS_TRANS_T sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-SEGMENT sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-PARTNER_SEGMENT sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSLVT_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL01_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL02_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL03_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL04_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL05_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL06_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL07_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL08_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL09_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL10_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL11_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL12_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL13_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL14_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL15_LONG sy-vline 
WA_BAPIBUS1600_S_POS_PERIOD_STR-HSL16_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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