ABAP Select data from SAP table BBPS_BS_PO_ITEM_45B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BBPS_BS_PO_ITEM_45B 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 BBPS_BS_PO_ITEM_45B. 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 BBPS_BS_PO_ITEM_45B 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_BBPS_BS_PO_ITEM_45B TYPE STANDARD TABLE OF BBPS_BS_PO_ITEM_45B,
      WA_BBPS_BS_PO_ITEM_45B TYPE BBPS_BS_PO_ITEM_45B,
      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: <BBPS_BS_PO_ITEM_45B> TYPE BBPS_BS_PO_ITEM_45B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BBPS_BS_PO_ITEM_45B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BBPS_BS_PO_ITEM_45B
  INTO TABLE IT_BBPS_BS_PO_ITEM_45B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPS_BS_PO_ITEM_45B
*  INTO TABLE @DATA(IT_BBPS_BS_PO_ITEM_45B2).
*--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_BBPS_BS_PO_ITEM_45B INDEX 1 INTO DATA(WA_BBPS_BS_PO_ITEM_45B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BBPS_BS_PO_ITEM_45B ASSIGNING <BBPS_BS_PO_ITEM_45B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPS_BS_PO_ITEM_45B>-PO_NUMBER = 1.
<BBPS_BS_PO_ITEM_45B>-PO_ITEM = 1.
<BBPS_BS_PO_ITEM_45B>-ADDRESS = 1.
<BBPS_BS_PO_ITEM_45B>-MATERIAL = 1.
<BBPS_BS_PO_ITEM_45B>-PUR_MAT = 1.

ENDLOOP.

LOOP AT IT_BBPS_BS_PO_ITEM_45B INTO WA_BBPS_BS_PO_ITEM_45B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPS_BS_PO_ITEM_45B-INFO_REC, sy-vline,
  WA_BBPS_BS_PO_ITEM_45B-ITEM_CAT, sy-vline,
  WA_BBPS_BS_PO_ITEM_45B-ACCTASSCAT, sy-vline,
  WA_BBPS_BS_PO_ITEM_45B-AGREEMENT, sy-vline,
  WA_BBPS_BS_PO_ITEM_45B-AGMT_ITEM, sy-vline,
  WA_BBPS_BS_PO_ITEM_45B-STORE_LOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBPS_BS_PO_ITEM_45B 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_BBPS_BS_PO_ITEM_45B 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_BBPS_BS_PO_ITEM_45B INTO WA_BBPS_BS_PO_ITEM_45B.


*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 PO_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-PO_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-PO_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRESS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-ADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-ADDRESS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PUR_MAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-PUR_MAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-PUR_MAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFO_REC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-INFO_REC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-INFO_REC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AGREEMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-AGREEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-AGREEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALLOC_TBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-ALLOC_TBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-ALLOC_TBL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDERPR_UN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-ORDERPR_UN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-ORDERPR_UN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROMOTION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-PROMOTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-PROMOTION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MFR_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPS_BS_PO_ITEM_45B-MFR_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPS_BS_PO_ITEM_45B-MFR_NO.
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_BBPS_BS_PO_ITEM_45B_STR, 
PO_NUMBER TYPE STRING,
PO_ITEM TYPE STRING,
ADDRESS TYPE STRING,
MATERIAL TYPE STRING,
PUR_MAT TYPE STRING,
INFO_REC TYPE STRING,
ITEM_CAT TYPE STRING,
ACCTASSCAT TYPE STRING,
AGREEMENT TYPE STRING,
AGMT_ITEM TYPE STRING,
STORE_LOC TYPE STRING,
MAT_GRP TYPE STRING,
SHORT_TEXT TYPE STRING,
DISTRIB TYPE STRING,
PART_INV TYPE STRING,
KANBAN_IND TYPE STRING,
PLANT TYPE STRING,
ALLOC_TBL TYPE STRING,
AT_ITEM TYPE STRING,
UNIT TYPE STRING,
NET_PRICE TYPE STRING,
PRICE_UNIT TYPE STRING,
CONV_NUM1 TYPE STRING,
CONV_DEN1 TYPE STRING,
ORDERPR_UN TYPE STRING,
PCKG_NO TYPE STRING,
PROMOTION TYPE STRING,
ACKN_REQD TYPE STRING,
TRACKINGNO TYPE STRING,
PLAN_DEL TYPE STRING,
RET_ITEM TYPE STRING,
AT_RELEV TYPE STRING,
VEND_MAT TYPE STRING,
MANUF_PROF TYPE STRING,
MANU_MAT TYPE STRING,
MFR_NO TYPE STRING,
MFR_NO_EXT TYPE STRING,
PO_PRICE TYPE STRING,
SHIPPING TYPE STRING,
ITEM_CAT_EXT TYPE STRING,
PO_UNIT_ISO TYPE STRING,
ORDERPR_UN_ISO TYPE STRING,
PREQ_NAME TYPE STRING,
DISP_QUAN TYPE STRING,
QUAL_INSP TYPE STRING,
NO_MORE_GR TYPE STRING,
DELETE_IND TYPE STRING,
NO_ROUNDING TYPE STRING,
TAX_CODE TYPE STRING,
SHIP_BLOCKED TYPE STRING,
VAL_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPS_BS_PO_ITEM_45B_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_BBPS_BS_PO_ITEM_45B_STR-PO_NUMBER sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PO_ITEM sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-ADDRESS sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-MATERIAL sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PUR_MAT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-INFO_REC sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-ITEM_CAT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-ACCTASSCAT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-AGREEMENT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-AGMT_ITEM sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-STORE_LOC sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-MAT_GRP sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-SHORT_TEXT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-DISTRIB sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PART_INV sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-KANBAN_IND sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PLANT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-ALLOC_TBL sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-AT_ITEM sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-UNIT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-NET_PRICE sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PRICE_UNIT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-CONV_NUM1 sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-CONV_DEN1 sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-ORDERPR_UN sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PCKG_NO sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PROMOTION sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-ACKN_REQD sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-TRACKINGNO sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PLAN_DEL sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-RET_ITEM sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-AT_RELEV sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-VEND_MAT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-MANUF_PROF sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-MANU_MAT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-MFR_NO sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-MFR_NO_EXT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PO_PRICE sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-SHIPPING sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-ITEM_CAT_EXT sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PO_UNIT_ISO sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-ORDERPR_UN_ISO sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-PREQ_NAME sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-DISP_QUAN sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-QUAL_INSP sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-NO_MORE_GR sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-DELETE_IND sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-NO_ROUNDING sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-TAX_CODE sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-SHIP_BLOCKED sy-vline 
WA_BBPS_BS_PO_ITEM_45B_STR-VAL_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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