ABAP Select data from SAP table LLS1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LLS1 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 LLS1. 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 LLS1 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_LLS1 TYPE STANDARD TABLE OF LLS1,
      WA_LLS1 TYPE LLS1,
      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: <LLS1> TYPE LLS1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LLS1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LLS1
  INTO TABLE IT_LLS1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LLS1
*  INTO TABLE @DATA(IT_LLS12).
*--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_LLS1 INDEX 1 INTO DATA(WA_LLS12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LLS1 ASSIGNING <LLS1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LLS1>-SAKOM = 1.
<LLS1>-LGNUM = 1.
<LLS1>-TANUM = 1.
<LLS1>-TAPOS = 1.
<LLS1>-VLTYP = 1.

ENDLOOP.

LOOP AT IT_LLS1 INTO WA_LLS1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LLS1-VLPLA, sy-vline,
  WA_LLS1-NLTYP, sy-vline,
  WA_LLS1-NLPLA, sy-vline,
  WA_LLS1-WERKS, sy-vline,
  WA_LLS1-MATNR, sy-vline,
  WA_LLS1-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LLS1 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_LLS1 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_LLS1 INTO WA_LLS1.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_LLS1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LLS1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SONUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LLS1-SONUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LLS1-SONUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LLS1-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LLS1-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LLS1-REFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LLS1-REFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LENUM, internal->external for field VLENR
CALL FUNCTION 'CONVERSION_EXIT_LENUM_OUTPUT'
  EXPORTING
    input =                      WA_LLS1-VLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LLS1-VLENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit LENUM, internal->external for field NLENR
CALL FUNCTION 'CONVERSION_EXIT_LENUM_OUTPUT'
  EXPORTING
    input =                      WA_LLS1-NLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LLS1-NLENR.
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_LLS1_STR, 
SAKOM TYPE STRING,
LGNUM TYPE STRING,
TANUM TYPE STRING,
TAPOS TYPE STRING,
VLTYP TYPE STRING,
VLPLA TYPE STRING,
NLTYP TYPE STRING,
NLPLA TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
BESTQ TYPE STRING,
SOBKZ TYPE STRING,
SONUM TYPE STRING,
MEINS TYPE STRING,
SOLME TYPE STRING,
KZQUI TYPE STRING,
REFNR TYPE STRING,
LETYP TYPE STRING,
VLENR TYPE STRING,
NLENR TYPE STRING,
FREIG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LLS1_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_LLS1_STR-SAKOM sy-vline 
WA_LLS1_STR-LGNUM sy-vline 
WA_LLS1_STR-TANUM sy-vline 
WA_LLS1_STR-TAPOS sy-vline 
WA_LLS1_STR-VLTYP sy-vline 
WA_LLS1_STR-VLPLA sy-vline 
WA_LLS1_STR-NLTYP sy-vline 
WA_LLS1_STR-NLPLA sy-vline 
WA_LLS1_STR-WERKS sy-vline 
WA_LLS1_STR-MATNR sy-vline 
WA_LLS1_STR-CHARG sy-vline 
WA_LLS1_STR-BESTQ sy-vline 
WA_LLS1_STR-SOBKZ sy-vline 
WA_LLS1_STR-SONUM sy-vline 
WA_LLS1_STR-MEINS sy-vline 
WA_LLS1_STR-SOLME sy-vline 
WA_LLS1_STR-KZQUI sy-vline 
WA_LLS1_STR-REFNR sy-vline 
WA_LLS1_STR-LETYP sy-vline 
WA_LLS1_STR-VLENR sy-vline 
WA_LLS1_STR-NLENR sy-vline 
WA_LLS1_STR-FREIG sy-vline      INTO ld_text SEPARATED BY SPACE.

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