ABAP Select data from SAP table /PM0/ALCABNF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PM0/ALCABNF 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 /PM0/ALCABNF. 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 /PM0/ALCABNF 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_/PM0/ALCABNF TYPE STANDARD TABLE OF /PM0/ALCABNF,
      WA_/PM0/ALCABNF TYPE /PM0/ALCABNF,
      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: </PM0/ALCABNF> TYPE /PM0/ALCABNF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PM0/ALCABNF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PM0/ALCABNF
  INTO TABLE IT_/PM0/ALCABNF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PM0/ALCABNF
*  INTO TABLE @DATA(IT_/PM0/ALCABNF2).
*--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_/PM0/ALCABNF INDEX 1 INTO DATA(WA_/PM0/ALCABNF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PM0/ALCABNF ASSIGNING </PM0/ALCABNF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PM0/ALCABNF>-/PM0/ALDABNF_OID = 1.
</PM0/ALCABNF>-PAYFRQ_CD = 1.
</PM0/ALCABNF>-ANNUITYBEG_DT = 1.
</PM0/ALCABNF>-ANNUITYEND_DT = 1.
</PM0/ALCABNF>-MINRISK_AM = 1.

ENDLOOP.

LOOP AT IT_/PM0/ALCABNF INTO WA_/PM0/ALCABNF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PM0/ALCABNF-ENDOWMATURITY_AM, sy-vline,
  WA_/PM0/ALCABNF-DTHINSURED_AM, sy-vline,
  WA_/PM0/ALCABNF-MINDTHINSUR_AM, sy-vline,
  WA_/PM0/ALCABNF-PREMREFUND_FG, sy-vline,
  WA_/PM0/ALCABNF-ANNPENSION_AM, sy-vline,
  WA_/PM0/ALCABNF-TYPANNUITYPAY_CD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PM0/ALCABNF 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_/PM0/ALCABNF 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_/PM0/ALCABNF INTO WA_/PM0/ALCABNF.


*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 J7NUM, internal->external for field PAYFRQ_CD
CALL FUNCTION 'CONVERSION_EXIT_J7NUM_OUTPUT'
  EXPORTING
    input =                      WA_/PM0/ALCABNF-PAYFRQ_CD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PM0/ALCABNF-PAYFRQ_CD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit J7NUM, internal->external for field AMNFRQ_CD
CALL FUNCTION 'CONVERSION_EXIT_J7NUM_OUTPUT'
  EXPORTING
    input =                      WA_/PM0/ALCABNF-AMNFRQ_CD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PM0/ALCABNF-AMNFRQ_CD.
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_/PM0/ALCABNF_STR, 
/PM0/ALDABNF_OID TYPE STRING,
PAYFRQ_CD TYPE STRING,
ANNUITYBEG_DT TYPE STRING,
ANNUITYEND_DT TYPE STRING,
MINRISK_AM TYPE STRING,
ENDOWMATURITY_AM TYPE STRING,
DTHINSURED_AM TYPE STRING,
MINDTHINSUR_AM TYPE STRING,
PREMREFUND_FG TYPE STRING,
ANNPENSION_AM TYPE STRING,
TYPANNUITYPAY_CD TYPE STRING,
ENDMATFACT_VL TYPE STRING,
INSAMOUNTABS_AM TYPE STRING,
INSAMOUNTCD_AM TYPE STRING,
INSAMOUNTREL_AM TYPE STRING,
PENSION_AM TYPE STRING,
DEATHINSURED_VL TYPE STRING,
ANNUALPENSION_VL TYPE STRING,
MINDEATHAMREL_VL TYPE STRING,
BNFSPECDEATH_CD TYPE STRING,
BNFSPECPPAY_CD TYPE STRING,
BNFSPECPENS_CD TYPE STRING,
BNFSPECMDEATH_CD TYPE STRING,
MINRISKAMTPER_VL TYPE STRING,
CURRENCY_ID TYPE STRING,
AMNFRQ_CD TYPE STRING,
FLCOV_VL TYPE STRING,
CAPPENSOPT_CD TYPE STRING,
CUSTOMER_PL_CI TYPE STRING,
AGEATEXPIRAT_VL TYPE STRING,
BNFSPECDEATH_TT TYPE STRING,
BNFSPECMDEATH_TT TYPE STRING,
BNFSPECPENS_TT TYPE STRING,
BNFSPECPPAY_TT TYPE STRING,
COVINSURANCE_TP TYPE STRING,
DUROFPENSGINM_AM TYPE STRING,
DUROFPENSGINY_AM TYPE STRING,
GUARANTEED_AM TYPE STRING,
LCOVPM_ID TYPE STRING,
LPBSTYP_TT TYPE STRING,
PAYFRQ_TT TYPE STRING,
TYPANNUITYPAY_TT TYPE STRING,
CUSTOMER_TL_CI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PM0/ALCABNF_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_/PM0/ALCABNF_STR-/PM0/ALDABNF_OID sy-vline 
WA_/PM0/ALCABNF_STR-PAYFRQ_CD sy-vline 
WA_/PM0/ALCABNF_STR-ANNUITYBEG_DT sy-vline 
WA_/PM0/ALCABNF_STR-ANNUITYEND_DT sy-vline 
WA_/PM0/ALCABNF_STR-MINRISK_AM sy-vline 
WA_/PM0/ALCABNF_STR-ENDOWMATURITY_AM sy-vline 
WA_/PM0/ALCABNF_STR-DTHINSURED_AM sy-vline 
WA_/PM0/ALCABNF_STR-MINDTHINSUR_AM sy-vline 
WA_/PM0/ALCABNF_STR-PREMREFUND_FG sy-vline 
WA_/PM0/ALCABNF_STR-ANNPENSION_AM sy-vline 
WA_/PM0/ALCABNF_STR-TYPANNUITYPAY_CD sy-vline 
WA_/PM0/ALCABNF_STR-ENDMATFACT_VL sy-vline 
WA_/PM0/ALCABNF_STR-INSAMOUNTABS_AM sy-vline 
WA_/PM0/ALCABNF_STR-INSAMOUNTCD_AM sy-vline 
WA_/PM0/ALCABNF_STR-INSAMOUNTREL_AM sy-vline 
WA_/PM0/ALCABNF_STR-PENSION_AM sy-vline 
WA_/PM0/ALCABNF_STR-DEATHINSURED_VL sy-vline 
WA_/PM0/ALCABNF_STR-ANNUALPENSION_VL sy-vline 
WA_/PM0/ALCABNF_STR-MINDEATHAMREL_VL sy-vline 
WA_/PM0/ALCABNF_STR-BNFSPECDEATH_CD sy-vline 
WA_/PM0/ALCABNF_STR-BNFSPECPPAY_CD sy-vline 
WA_/PM0/ALCABNF_STR-BNFSPECPENS_CD sy-vline 
WA_/PM0/ALCABNF_STR-BNFSPECMDEATH_CD sy-vline 
WA_/PM0/ALCABNF_STR-MINRISKAMTPER_VL sy-vline 
WA_/PM0/ALCABNF_STR-CURRENCY_ID sy-vline 
WA_/PM0/ALCABNF_STR-AMNFRQ_CD sy-vline 
WA_/PM0/ALCABNF_STR-FLCOV_VL sy-vline 
WA_/PM0/ALCABNF_STR-CAPPENSOPT_CD sy-vline 
WA_/PM0/ALCABNF_STR-CUSTOMER_PL_CI sy-vline 
WA_/PM0/ALCABNF_STR-AGEATEXPIRAT_VL sy-vline 
WA_/PM0/ALCABNF_STR-BNFSPECDEATH_TT sy-vline 
WA_/PM0/ALCABNF_STR-BNFSPECMDEATH_TT sy-vline 
WA_/PM0/ALCABNF_STR-BNFSPECPENS_TT sy-vline 
WA_/PM0/ALCABNF_STR-BNFSPECPPAY_TT sy-vline 
WA_/PM0/ALCABNF_STR-COVINSURANCE_TP sy-vline 
WA_/PM0/ALCABNF_STR-DUROFPENSGINM_AM sy-vline 
WA_/PM0/ALCABNF_STR-DUROFPENSGINY_AM sy-vline 
WA_/PM0/ALCABNF_STR-GUARANTEED_AM sy-vline 
WA_/PM0/ALCABNF_STR-LCOVPM_ID sy-vline 
WA_/PM0/ALCABNF_STR-LPBSTYP_TT sy-vline 
WA_/PM0/ALCABNF_STR-PAYFRQ_TT sy-vline 
WA_/PM0/ALCABNF_STR-TYPANNUITYPAY_TT sy-vline 
WA_/PM0/ALCABNF_STR-CUSTOMER_TL_CI sy-vline      INTO ld_text SEPARATED BY SPACE.

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