ABAP Select data from SAP table BLFA1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BLFA1 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 BLFA1. 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 BLFA1 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_BLFA1 TYPE STANDARD TABLE OF BLFA1,
      WA_BLFA1 TYPE BLFA1,
      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: <BLFA1> TYPE BLFA1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BLFA1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BLFA1
  INTO TABLE IT_BLFA1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BLFA1
*  INTO TABLE @DATA(IT_BLFA12).
*--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_BLFA1 INDEX 1 INTO DATA(WA_BLFA12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BLFA1 ASSIGNING <BLFA1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BLFA1>-STYPE = 1.
<BLFA1>-TBNAM = 1.
<BLFA1>-ANRED = 1.
<BLFA1>-NAME1 = 1.
<BLFA1>-NAME2 = 1.

ENDLOOP.

LOOP AT IT_BLFA1 INTO WA_BLFA1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BLFA1-NAME3, sy-vline,
  WA_BLFA1-NAME4, sy-vline,
  WA_BLFA1-SORTL, sy-vline,
  WA_BLFA1-STRAS, sy-vline,
  WA_BLFA1-PFACH, sy-vline,
  WA_BLFA1-ORT01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BLFA1 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_BLFA1 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_BLFA1 INTO WA_BLFA1.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BLFA1-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BLFA1-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BLFA1-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BLFA1-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FISKN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BLFA1-FISKN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BLFA1-FISKN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRZA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BLFA1-LNRZA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BLFA1-LNRZA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FISKU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BLFA1-FISKU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BLFA1-FISKU.
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_BLFA1_STR, 
STYPE TYPE STRING,
TBNAM TYPE STRING,
ANRED TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
SORTL TYPE STRING,
STRAS TYPE STRING,
PFACH TYPE STRING,
ORT01 TYPE STRING,
PSTLZ TYPE STRING,
ORT02 TYPE STRING,
PSTL2 TYPE STRING,
LAND1 TYPE STRING,
REGIO TYPE STRING,
SPRAS TYPE STRING,
TELX1 TYPE STRING,
TELF1 TYPE STRING,
TELFX TYPE STRING,
TELF2 TYPE STRING,
TELTX TYPE STRING,
TELBX TYPE STRING,
DATLT TYPE STRING,
KUNNR TYPE STRING,
BEGRU TYPE STRING,
VBUND TYPE STRING,
KONZS TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
FISKN TYPE STRING,
STKZA TYPE STRING,
STKZU TYPE STRING,
BBBNR TYPE STRING,
BBSNR TYPE STRING,
BUBKZ TYPE STRING,
BRSCH TYPE STRING,
BAHNS TYPE STRING,
LNRZA TYPE STRING,
ESRNR TYPE STRING,
XZEMP TYPE STRING,
DTAWS TYPE STRING,
DTAMS TYPE STRING,
LOEVM TYPE STRING,
SPERR TYPE STRING,
SPERM TYPE STRING,
STCEG TYPE STRING,
STKZN TYPE STRING,
SPERQ TYPE STRING,
GBORT TYPE STRING,
GBDAT TYPE STRING,
SEXKZ TYPE STRING,
KRAUS TYPE STRING,
REVDB TYPE STRING,
PFORT TYPE STRING,
KTOCK TYPE STRING,
QSSYS TYPE STRING,
TXJCD TYPE STRING,
WERKS TYPE STRING,
LTSNA TYPE STRING,
WERKR TYPE STRING,
SCACD TYPE STRING,
SFRGR TYPE STRING,
LZONE TYPE STRING,
DLGRP TYPE STRING,
FITYP TYPE STRING,
STCDT TYPE STRING,
REGSS TYPE STRING,
ACTSS TYPE STRING,
STCD3 TYPE STRING,
STCD4 TYPE STRING,
IPISP TYPE STRING,
TAXBS TYPE STRING,
PROFS TYPE STRING,
STGDL TYPE STRING,
EMNFR TYPE STRING,
LFURL TYPE STRING,
J_1KFREPRE TYPE STRING,
J_1KFTBUS TYPE STRING,
J_1KFTIND TYPE STRING,
NODEL TYPE STRING,
QSSYSDAT TYPE STRING,
PODKZB TYPE STRING,
FISKU TYPE STRING,
STENR TYPE STRING,
PSOIS TYPE STRING,
PSON1 TYPE STRING,
PSON2 TYPE STRING,
PSON3 TYPE STRING,
PSOVN TYPE STRING,
PSOTL TYPE STRING,
PLKAL TYPE STRING,
TRANSPORT_CHAIN TYPE STRING,
STAGING_TIME TYPE STRING,
SUBMI_RELEVANT TYPE STRING,
SCHEDULING_TYPE TYPE STRING,
STCD5 TYPE STRING,
MIN_COMP TYPE STRING,
TERM_LI TYPE STRING,
CRC_NUM TYPE STRING,
RG TYPE STRING,
EXP TYPE STRING,
UF TYPE STRING,
RGDATE TYPE STRING,
RIC TYPE STRING,
RNE TYPE STRING,
RNEDATE TYPE STRING,
CNAE TYPE STRING,
LEGALNAT TYPE STRING,
CRTN TYPE STRING,
ICMSTAXPAY TYPE STRING,
INDTYP TYPE STRING,
TDT TYPE STRING,
COMSIZE TYPE STRING,
DECREGPC TYPE STRING,
STCD6 TYPE STRING,
SENDE TYPE STRING,
BORGR_DATUN TYPE STRING,
BORGR_YEAUN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BLFA1_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_BLFA1_STR-STYPE sy-vline 
WA_BLFA1_STR-TBNAM sy-vline 
WA_BLFA1_STR-ANRED sy-vline 
WA_BLFA1_STR-NAME1 sy-vline 
WA_BLFA1_STR-NAME2 sy-vline 
WA_BLFA1_STR-NAME3 sy-vline 
WA_BLFA1_STR-NAME4 sy-vline 
WA_BLFA1_STR-SORTL sy-vline 
WA_BLFA1_STR-STRAS sy-vline 
WA_BLFA1_STR-PFACH sy-vline 
WA_BLFA1_STR-ORT01 sy-vline 
WA_BLFA1_STR-PSTLZ sy-vline 
WA_BLFA1_STR-ORT02 sy-vline 
WA_BLFA1_STR-PSTL2 sy-vline 
WA_BLFA1_STR-LAND1 sy-vline 
WA_BLFA1_STR-REGIO sy-vline 
WA_BLFA1_STR-SPRAS sy-vline 
WA_BLFA1_STR-TELX1 sy-vline 
WA_BLFA1_STR-TELF1 sy-vline 
WA_BLFA1_STR-TELFX sy-vline 
WA_BLFA1_STR-TELF2 sy-vline 
WA_BLFA1_STR-TELTX sy-vline 
WA_BLFA1_STR-TELBX sy-vline 
WA_BLFA1_STR-DATLT sy-vline 
WA_BLFA1_STR-KUNNR sy-vline 
WA_BLFA1_STR-BEGRU sy-vline 
WA_BLFA1_STR-VBUND sy-vline 
WA_BLFA1_STR-KONZS sy-vline 
WA_BLFA1_STR-STCD1 sy-vline 
WA_BLFA1_STR-STCD2 sy-vline 
WA_BLFA1_STR-FISKN sy-vline 
WA_BLFA1_STR-STKZA sy-vline 
WA_BLFA1_STR-STKZU sy-vline 
WA_BLFA1_STR-BBBNR sy-vline 
WA_BLFA1_STR-BBSNR sy-vline 
WA_BLFA1_STR-BUBKZ sy-vline 
WA_BLFA1_STR-BRSCH sy-vline 
WA_BLFA1_STR-BAHNS sy-vline 
WA_BLFA1_STR-LNRZA sy-vline 
WA_BLFA1_STR-ESRNR sy-vline 
WA_BLFA1_STR-XZEMP sy-vline 
WA_BLFA1_STR-DTAWS sy-vline 
WA_BLFA1_STR-DTAMS sy-vline 
WA_BLFA1_STR-LOEVM sy-vline 
WA_BLFA1_STR-SPERR sy-vline 
WA_BLFA1_STR-SPERM sy-vline 
WA_BLFA1_STR-STCEG sy-vline 
WA_BLFA1_STR-STKZN sy-vline 
WA_BLFA1_STR-SPERQ sy-vline 
WA_BLFA1_STR-GBORT sy-vline 
WA_BLFA1_STR-GBDAT sy-vline 
WA_BLFA1_STR-SEXKZ sy-vline 
WA_BLFA1_STR-KRAUS sy-vline 
WA_BLFA1_STR-REVDB sy-vline 
WA_BLFA1_STR-PFORT sy-vline 
WA_BLFA1_STR-KTOCK sy-vline 
WA_BLFA1_STR-QSSYS sy-vline 
WA_BLFA1_STR-TXJCD sy-vline 
WA_BLFA1_STR-WERKS sy-vline 
WA_BLFA1_STR-LTSNA sy-vline 
WA_BLFA1_STR-WERKR sy-vline 
WA_BLFA1_STR-SCACD sy-vline 
WA_BLFA1_STR-SFRGR sy-vline 
WA_BLFA1_STR-LZONE sy-vline 
WA_BLFA1_STR-DLGRP sy-vline 
WA_BLFA1_STR-FITYP sy-vline 
WA_BLFA1_STR-STCDT sy-vline 
WA_BLFA1_STR-REGSS sy-vline 
WA_BLFA1_STR-ACTSS sy-vline 
WA_BLFA1_STR-STCD3 sy-vline 
WA_BLFA1_STR-STCD4 sy-vline 
WA_BLFA1_STR-IPISP sy-vline 
WA_BLFA1_STR-TAXBS sy-vline 
WA_BLFA1_STR-PROFS sy-vline 
WA_BLFA1_STR-STGDL sy-vline 
WA_BLFA1_STR-EMNFR sy-vline 
WA_BLFA1_STR-LFURL sy-vline 
WA_BLFA1_STR-J_1KFREPRE sy-vline 
WA_BLFA1_STR-J_1KFTBUS sy-vline 
WA_BLFA1_STR-J_1KFTIND sy-vline 
WA_BLFA1_STR-NODEL sy-vline 
WA_BLFA1_STR-QSSYSDAT sy-vline 
WA_BLFA1_STR-PODKZB sy-vline 
WA_BLFA1_STR-FISKU sy-vline 
WA_BLFA1_STR-STENR sy-vline 
WA_BLFA1_STR-PSOIS sy-vline 
WA_BLFA1_STR-PSON1 sy-vline 
WA_BLFA1_STR-PSON2 sy-vline 
WA_BLFA1_STR-PSON3 sy-vline 
WA_BLFA1_STR-PSOVN sy-vline 
WA_BLFA1_STR-PSOTL sy-vline 
WA_BLFA1_STR-PLKAL sy-vline 
WA_BLFA1_STR-TRANSPORT_CHAIN sy-vline 
WA_BLFA1_STR-STAGING_TIME sy-vline 
WA_BLFA1_STR-SUBMI_RELEVANT sy-vline 
WA_BLFA1_STR-SCHEDULING_TYPE sy-vline 
WA_BLFA1_STR-STCD5 sy-vline 
WA_BLFA1_STR-MIN_COMP sy-vline 
WA_BLFA1_STR-TERM_LI sy-vline 
WA_BLFA1_STR-CRC_NUM sy-vline 
WA_BLFA1_STR-RG sy-vline 
WA_BLFA1_STR-EXP sy-vline 
WA_BLFA1_STR-UF sy-vline 
WA_BLFA1_STR-RGDATE sy-vline 
WA_BLFA1_STR-RIC sy-vline 
WA_BLFA1_STR-RNE sy-vline 
WA_BLFA1_STR-RNEDATE sy-vline 
WA_BLFA1_STR-CNAE sy-vline 
WA_BLFA1_STR-LEGALNAT sy-vline 
WA_BLFA1_STR-CRTN sy-vline 
WA_BLFA1_STR-ICMSTAXPAY sy-vline 
WA_BLFA1_STR-INDTYP sy-vline 
WA_BLFA1_STR-TDT sy-vline 
WA_BLFA1_STR-COMSIZE sy-vline 
WA_BLFA1_STR-DECREGPC sy-vline 
WA_BLFA1_STR-STCD6 sy-vline 
WA_BLFA1_STR-SENDE sy-vline 
WA_BLFA1_STR-BORGR_DATUN sy-vline 
WA_BLFA1_STR-BORGR_YEAUN sy-vline      INTO ld_text SEPARATED BY SPACE.

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