ABAP Select data from SAP table LFA1_DQ_STR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LFA1_DQ_STR 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 LFA1_DQ_STR. 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 LFA1_DQ_STR 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_LFA1_DQ_STR TYPE STANDARD TABLE OF LFA1_DQ_STR,
      WA_LFA1_DQ_STR TYPE LFA1_DQ_STR,
      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: <LFA1_DQ_STR> TYPE LFA1_DQ_STR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LFA1_DQ_STR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LFA1_DQ_STR
  INTO TABLE IT_LFA1_DQ_STR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LFA1_DQ_STR
*  INTO TABLE @DATA(IT_LFA1_DQ_STR2).
*--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_LFA1_DQ_STR INDEX 1 INTO DATA(WA_LFA1_DQ_STR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LFA1_DQ_STR ASSIGNING <LFA1_DQ_STR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LFA1_DQ_STR>-SOURCE_SYSTEM = 1.
<LFA1_DQ_STR>-SOURCE_ID = 1.
<LFA1_DQ_STR>-ASSIGNMENT_ID = 1.
<LFA1_DQ_STR>-LIFNR = 1.
<LFA1_DQ_STR>-LAND1 = 1.

ENDLOOP.

LOOP AT IT_LFA1_DQ_STR INTO WA_LFA1_DQ_STR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LFA1_DQ_STR-NAME1, sy-vline,
  WA_LFA1_DQ_STR-NAME2, sy-vline,
  WA_LFA1_DQ_STR-NAME3, sy-vline,
  WA_LFA1_DQ_STR-NAME4, sy-vline,
  WA_LFA1_DQ_STR-ORT01, sy-vline,
  WA_LFA1_DQ_STR-ORT02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LFA1_DQ_STR 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_LFA1_DQ_STR 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_LFA1_DQ_STR INTO WA_LFA1_DQ_STR.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LNRZA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-LNRZA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-LNRZA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FISKN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-FISKN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-FISKN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FISKU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-FISKU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-FISKU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LFA1_DQ_STR-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LFA1_DQ_STR-PARTNER.
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_LFA1_DQ_STR_STR, 
SOURCE_SYSTEM TYPE STRING,
SOURCE_ID TYPE STRING,
ASSIGNMENT_ID TYPE STRING,
LIFNR TYPE STRING,
LAND1 TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
ORT01 TYPE STRING,
ORT02 TYPE STRING,
PFACH TYPE STRING,
PSTL2 TYPE STRING,
PSTLZ TYPE STRING,
REGIO TYPE STRING,
SORTL TYPE STRING,
STRAS TYPE STRING,
ADRNR TYPE STRING,
MCOD1 TYPE STRING,
MCOD2 TYPE STRING,
MCOD3 TYPE STRING,
ANRED TYPE STRING,
BAHNS TYPE STRING,
BBBNR TYPE STRING,
BBSNR TYPE STRING,
BEGRU TYPE STRING,
BRSCH TYPE STRING,
BUBKZ TYPE STRING,
DATLT TYPE STRING,
DTAMS TYPE STRING,
DTAWS TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
ESRNR TYPE STRING,
KONZS TYPE STRING,
KTOKK TYPE STRING,
KUNNR TYPE STRING,
LNRZA TYPE STRING,
LOEVM TYPE STRING,
SPERR TYPE STRING,
SPERM TYPE STRING,
SPRAS TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
STKZA TYPE STRING,
STKZU TYPE STRING,
TELBX TYPE STRING,
TELF1 TYPE STRING,
TELF2 TYPE STRING,
TELFX TYPE STRING,
TELTX TYPE STRING,
TELX1 TYPE STRING,
XCPDK TYPE STRING,
XZEMP TYPE STRING,
VBUND TYPE STRING,
FISKN 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,
QSSYS TYPE STRING,
KTOCK TYPE STRING,
PFORT TYPE STRING,
WERKS TYPE STRING,
LTSNA TYPE STRING,
WERKR TYPE STRING,
PLKAL TYPE STRING,
DUEFL TYPE STRING,
TXJCD TYPE STRING,
SPERZ TYPE STRING,
SCACD TYPE STRING,
SFRGR TYPE STRING,
LZONE TYPE STRING,
XLFZA TYPE STRING,
DLGRP TYPE STRING,
FITYP TYPE STRING,
STCDT TYPE STRING,
REGSS TYPE STRING,
ACTSS TYPE STRING,
STCD3 TYPE STRING,
STCD4 TYPE STRING,
STCD5 TYPE STRING,
STCD6 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,
CONFS TYPE STRING,
UPDAT TYPE STRING,
UPTIM TYPE STRING,
NODEL TYPE STRING,
QSSYSDAT TYPE STRING,
PODKZB TYPE STRING,
FISKU TYPE STRING,
STENR TYPE STRING,
CARRIER_CONF TYPE STRING,
MIN_COMP TYPE STRING,
TERM_LI TYPE STRING,
CRC_NUM TYPE STRING,
CVP_XBLCK TYPE STRING,
WEORA 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,
ALLOWANCE_TYPE TYPE STRING,
PAYTRSN TYPE STRING,
PARTNER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LFA1_DQ_STR_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_LFA1_DQ_STR_STR-SOURCE_SYSTEM sy-vline 
WA_LFA1_DQ_STR_STR-SOURCE_ID sy-vline 
WA_LFA1_DQ_STR_STR-ASSIGNMENT_ID sy-vline 
WA_LFA1_DQ_STR_STR-LIFNR sy-vline 
WA_LFA1_DQ_STR_STR-LAND1 sy-vline 
WA_LFA1_DQ_STR_STR-NAME1 sy-vline 
WA_LFA1_DQ_STR_STR-NAME2 sy-vline 
WA_LFA1_DQ_STR_STR-NAME3 sy-vline 
WA_LFA1_DQ_STR_STR-NAME4 sy-vline 
WA_LFA1_DQ_STR_STR-ORT01 sy-vline 
WA_LFA1_DQ_STR_STR-ORT02 sy-vline 
WA_LFA1_DQ_STR_STR-PFACH sy-vline 
WA_LFA1_DQ_STR_STR-PSTL2 sy-vline 
WA_LFA1_DQ_STR_STR-PSTLZ sy-vline 
WA_LFA1_DQ_STR_STR-REGIO sy-vline 
WA_LFA1_DQ_STR_STR-SORTL sy-vline 
WA_LFA1_DQ_STR_STR-STRAS sy-vline 
WA_LFA1_DQ_STR_STR-ADRNR sy-vline 
WA_LFA1_DQ_STR_STR-MCOD1 sy-vline 
WA_LFA1_DQ_STR_STR-MCOD2 sy-vline 
WA_LFA1_DQ_STR_STR-MCOD3 sy-vline 
WA_LFA1_DQ_STR_STR-ANRED sy-vline 
WA_LFA1_DQ_STR_STR-BAHNS sy-vline 
WA_LFA1_DQ_STR_STR-BBBNR sy-vline 
WA_LFA1_DQ_STR_STR-BBSNR sy-vline 
WA_LFA1_DQ_STR_STR-BEGRU sy-vline 
WA_LFA1_DQ_STR_STR-BRSCH sy-vline 
WA_LFA1_DQ_STR_STR-BUBKZ sy-vline 
WA_LFA1_DQ_STR_STR-DATLT sy-vline 
WA_LFA1_DQ_STR_STR-DTAMS sy-vline 
WA_LFA1_DQ_STR_STR-DTAWS sy-vline 
WA_LFA1_DQ_STR_STR-ERDAT sy-vline 
WA_LFA1_DQ_STR_STR-ERNAM sy-vline 
WA_LFA1_DQ_STR_STR-ESRNR sy-vline 
WA_LFA1_DQ_STR_STR-KONZS sy-vline 
WA_LFA1_DQ_STR_STR-KTOKK sy-vline 
WA_LFA1_DQ_STR_STR-KUNNR sy-vline 
WA_LFA1_DQ_STR_STR-LNRZA sy-vline 
WA_LFA1_DQ_STR_STR-LOEVM sy-vline 
WA_LFA1_DQ_STR_STR-SPERR sy-vline 
WA_LFA1_DQ_STR_STR-SPERM sy-vline 
WA_LFA1_DQ_STR_STR-SPRAS sy-vline 
WA_LFA1_DQ_STR_STR-STCD1 sy-vline 
WA_LFA1_DQ_STR_STR-STCD2 sy-vline 
WA_LFA1_DQ_STR_STR-STKZA sy-vline 
WA_LFA1_DQ_STR_STR-STKZU sy-vline 
WA_LFA1_DQ_STR_STR-TELBX sy-vline 
WA_LFA1_DQ_STR_STR-TELF1 sy-vline 
WA_LFA1_DQ_STR_STR-TELF2 sy-vline 
WA_LFA1_DQ_STR_STR-TELFX sy-vline 
WA_LFA1_DQ_STR_STR-TELTX sy-vline 
WA_LFA1_DQ_STR_STR-TELX1 sy-vline 
WA_LFA1_DQ_STR_STR-XCPDK sy-vline 
WA_LFA1_DQ_STR_STR-XZEMP sy-vline 
WA_LFA1_DQ_STR_STR-VBUND sy-vline 
WA_LFA1_DQ_STR_STR-FISKN sy-vline 
WA_LFA1_DQ_STR_STR-STCEG sy-vline 
WA_LFA1_DQ_STR_STR-STKZN sy-vline 
WA_LFA1_DQ_STR_STR-SPERQ sy-vline 
WA_LFA1_DQ_STR_STR-GBORT sy-vline 
WA_LFA1_DQ_STR_STR-GBDAT sy-vline 
WA_LFA1_DQ_STR_STR-SEXKZ sy-vline 
WA_LFA1_DQ_STR_STR-KRAUS sy-vline 
WA_LFA1_DQ_STR_STR-REVDB sy-vline 
WA_LFA1_DQ_STR_STR-QSSYS sy-vline 
WA_LFA1_DQ_STR_STR-KTOCK sy-vline 
WA_LFA1_DQ_STR_STR-PFORT sy-vline 
WA_LFA1_DQ_STR_STR-WERKS sy-vline 
WA_LFA1_DQ_STR_STR-LTSNA sy-vline 
WA_LFA1_DQ_STR_STR-WERKR sy-vline 
WA_LFA1_DQ_STR_STR-PLKAL sy-vline 
WA_LFA1_DQ_STR_STR-DUEFL sy-vline 
WA_LFA1_DQ_STR_STR-TXJCD sy-vline 
WA_LFA1_DQ_STR_STR-SPERZ sy-vline 
WA_LFA1_DQ_STR_STR-SCACD sy-vline 
WA_LFA1_DQ_STR_STR-SFRGR sy-vline 
WA_LFA1_DQ_STR_STR-LZONE sy-vline 
WA_LFA1_DQ_STR_STR-XLFZA sy-vline 
WA_LFA1_DQ_STR_STR-DLGRP sy-vline 
WA_LFA1_DQ_STR_STR-FITYP sy-vline 
WA_LFA1_DQ_STR_STR-STCDT sy-vline 
WA_LFA1_DQ_STR_STR-REGSS sy-vline 
WA_LFA1_DQ_STR_STR-ACTSS sy-vline 
WA_LFA1_DQ_STR_STR-STCD3 sy-vline 
WA_LFA1_DQ_STR_STR-STCD4 sy-vline 
WA_LFA1_DQ_STR_STR-STCD5 sy-vline 
WA_LFA1_DQ_STR_STR-STCD6 sy-vline 
WA_LFA1_DQ_STR_STR-IPISP sy-vline 
WA_LFA1_DQ_STR_STR-TAXBS sy-vline 
WA_LFA1_DQ_STR_STR-PROFS sy-vline 
WA_LFA1_DQ_STR_STR-STGDL sy-vline 
WA_LFA1_DQ_STR_STR-EMNFR sy-vline 
WA_LFA1_DQ_STR_STR-LFURL sy-vline 
WA_LFA1_DQ_STR_STR-J_1KFREPRE sy-vline 
WA_LFA1_DQ_STR_STR-J_1KFTBUS sy-vline 
WA_LFA1_DQ_STR_STR-J_1KFTIND sy-vline 
WA_LFA1_DQ_STR_STR-CONFS sy-vline 
WA_LFA1_DQ_STR_STR-UPDAT sy-vline 
WA_LFA1_DQ_STR_STR-UPTIM sy-vline 
WA_LFA1_DQ_STR_STR-NODEL sy-vline 
WA_LFA1_DQ_STR_STR-QSSYSDAT sy-vline 
WA_LFA1_DQ_STR_STR-PODKZB sy-vline 
WA_LFA1_DQ_STR_STR-FISKU sy-vline 
WA_LFA1_DQ_STR_STR-STENR sy-vline 
WA_LFA1_DQ_STR_STR-CARRIER_CONF sy-vline 
WA_LFA1_DQ_STR_STR-MIN_COMP sy-vline 
WA_LFA1_DQ_STR_STR-TERM_LI sy-vline 
WA_LFA1_DQ_STR_STR-CRC_NUM sy-vline 
WA_LFA1_DQ_STR_STR-CVP_XBLCK sy-vline 
WA_LFA1_DQ_STR_STR-WEORA sy-vline 
WA_LFA1_DQ_STR_STR-RG sy-vline 
WA_LFA1_DQ_STR_STR-EXP sy-vline 
WA_LFA1_DQ_STR_STR-UF sy-vline 
WA_LFA1_DQ_STR_STR-RGDATE sy-vline 
WA_LFA1_DQ_STR_STR-RIC sy-vline 
WA_LFA1_DQ_STR_STR-RNE sy-vline 
WA_LFA1_DQ_STR_STR-RNEDATE sy-vline 
WA_LFA1_DQ_STR_STR-CNAE sy-vline 
WA_LFA1_DQ_STR_STR-LEGALNAT sy-vline 
WA_LFA1_DQ_STR_STR-CRTN sy-vline 
WA_LFA1_DQ_STR_STR-ICMSTAXPAY sy-vline 
WA_LFA1_DQ_STR_STR-INDTYP sy-vline 
WA_LFA1_DQ_STR_STR-TDT sy-vline 
WA_LFA1_DQ_STR_STR-COMSIZE sy-vline 
WA_LFA1_DQ_STR_STR-DECREGPC sy-vline 
WA_LFA1_DQ_STR_STR-ALLOWANCE_TYPE sy-vline 
WA_LFA1_DQ_STR_STR-PAYTRSN sy-vline 
WA_LFA1_DQ_STR_STR-PARTNER sy-vline      INTO ld_text SEPARATED BY SPACE.

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