ABAP Select data from SAP table /PMG/GE_BNF_B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PMG/GE_BNF_B 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 /PMG/GE_BNF_B. 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 /PMG/GE_BNF_B 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_/PMG/GE_BNF_B TYPE STANDARD TABLE OF /PMG/GE_BNF_B,
      WA_/PMG/GE_BNF_B TYPE /PMG/GE_BNF_B,
      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: </PMG/GE_BNF_B> TYPE /PMG/GE_BNF_B.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PMG/GE_BNF_B
  INTO TABLE IT_/PMG/GE_BNF_B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PMG/GE_BNF_B
*  INTO TABLE @DATA(IT_/PMG/GE_BNF_B2).
*--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_/PMG/GE_BNF_B INDEX 1 INTO DATA(WA_/PMG/GE_BNF_B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PMG/GE_BNF_B ASSIGNING </PMG/GE_BNF_B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PMG/GE_BNF_B>-LOB_CD = 1.
</PMG/GE_BNF_B>-PROBATIONPER_VL = 1.
</PMG/GE_BNF_B>-ENDOFBNF_DT = 1.
</PMG/GE_BNF_B>-PM_ID = 1.
</PMG/GE_BNF_B>-CURR_ID = 1.

ENDLOOP.

LOOP AT IT_/PMG/GE_BNF_B INTO WA_/PMG/GE_BNF_B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PMG/GE_BNF_B-PRODUCTMAPP_ID, sy-vline,
  WA_/PMG/GE_BNF_B-CUSTOMER_PB_CI, sy-vline,
  WA_/PMG/GE_BNF_B-BNFDURINMONTH_AM, sy-vline,
  WA_/PMG/GE_BNF_B-BNFDURINYEARS_AM, sy-vline,
  WA_/PMG/GE_BNF_B-COVPM_ID, sy-vline,
  WA_/PMG/GE_BNF_B-INSURANCE_TP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PMG/GE_BNF_B 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_/PMG/GE_BNF_B 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_/PMG/GE_BNF_B INTO WA_/PMG/GE_BNF_B.


*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 J7PHD, internal->external for field ENDOFBNF_DT
CALL FUNCTION 'CONVERSION_EXIT_J7PHD_OUTPUT'
  EXPORTING
    input =                      WA_/PMG/GE_BNF_B-ENDOFBNF_DT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PMG/GE_BNF_B-ENDOFBNF_DT.
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_/PMG/GE_BNF_B_STR, 
LOB_CD TYPE STRING,
PROBATIONPER_VL TYPE STRING,
ENDOFBNF_DT TYPE STRING,
PM_ID TYPE STRING,
CURR_ID TYPE STRING,
PRODUCTMAPP_ID TYPE STRING,
CUSTOMER_PB_CI TYPE STRING,
BNFDURINMONTH_AM TYPE STRING,
BNFDURINYEARS_AM TYPE STRING,
COVPM_ID TYPE STRING,
INSURANCE_TP TYPE STRING,
PARTPAY_FG TYPE STRING,
PBSTYP_TT TYPE STRING,
CUSTOMER_TB_CI TYPE STRING,
BO_ID TYPE STRING,
POLICY_ID TYPE STRING,
PPDPAC_ID TYPE STRING,
POLICYPRODUCT_ID TYPE STRING,
COVPAC_ID TYPE STRING,
COVERAGE_ID TYPE STRING,
COVCP_ID TYPE STRING,
BENEFIT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PMG/GE_BNF_B_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_/PMG/GE_BNF_B_STR-LOB_CD sy-vline 
WA_/PMG/GE_BNF_B_STR-PROBATIONPER_VL sy-vline 
WA_/PMG/GE_BNF_B_STR-ENDOFBNF_DT sy-vline 
WA_/PMG/GE_BNF_B_STR-PM_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-CURR_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-PRODUCTMAPP_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-CUSTOMER_PB_CI sy-vline 
WA_/PMG/GE_BNF_B_STR-BNFDURINMONTH_AM sy-vline 
WA_/PMG/GE_BNF_B_STR-BNFDURINYEARS_AM sy-vline 
WA_/PMG/GE_BNF_B_STR-COVPM_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-INSURANCE_TP sy-vline 
WA_/PMG/GE_BNF_B_STR-PARTPAY_FG sy-vline 
WA_/PMG/GE_BNF_B_STR-PBSTYP_TT sy-vline 
WA_/PMG/GE_BNF_B_STR-CUSTOMER_TB_CI sy-vline 
WA_/PMG/GE_BNF_B_STR-BO_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-POLICY_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-PPDPAC_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-POLICYPRODUCT_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-COVPAC_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-COVERAGE_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-COVCP_ID sy-vline 
WA_/PMG/GE_BNF_B_STR-BENEFIT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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