ABAP Select data from SAP table SEL_INFO_LEAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SEL_INFO_LEAM
*  INTO TABLE @DATA(IT_SEL_INFO_LEAM2).
*--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_SEL_INFO_LEAM INDEX 1 INTO DATA(WA_SEL_INFO_LEAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SEL_INFO_LEAM>-LIFNR = 1.
<SEL_INFO_LEAM>-MATNR = 1.
<SEL_INFO_LEAM>-WERKS = 1.
<SEL_INFO_LEAM>-EKORG = 1.
<SEL_INFO_LEAM>-INFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SEL_INFO_LEAM-ESOKZ, sy-vline,
  WA_SEL_INFO_LEAM-IDNLF, sy-vline,
  WA_SEL_INFO_LEAM-TXZ01, sy-vline,
  WA_SEL_INFO_LEAM-URZLA, sy-vline,
  WA_SEL_INFO_LEAM-STAWN, sy-vline,
  WA_SEL_INFO_LEAM-MAKTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SEL_INFO_LEAM 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_SEL_INFO_LEAM 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_SEL_INFO_LEAM INTO WA_SEL_INFO_LEAM.


*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_SEL_INFO_LEAM-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SEL_INFO_LEAM-LIFNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SEL_INFO_LEAM-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SEL_INFO_LEAM-LANGU.
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_SEL_INFO_LEAM_STR, 
LIFNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
EKORG TYPE STRING,
INFNR TYPE STRING,
ESOKZ TYPE STRING,
IDNLF TYPE STRING,
TXZ01 TYPE STRING,
URZLA TYPE STRING,
STAWN TYPE STRING,
MAKTX TYPE STRING,
LAND1 TYPE STRING,
DATLB TYPE STRING,
LANGU TYPE STRING,
KZ_DR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SEL_INFO_LEAM_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_SEL_INFO_LEAM_STR-LIFNR sy-vline 
WA_SEL_INFO_LEAM_STR-MATNR sy-vline 
WA_SEL_INFO_LEAM_STR-WERKS sy-vline 
WA_SEL_INFO_LEAM_STR-EKORG sy-vline 
WA_SEL_INFO_LEAM_STR-INFNR sy-vline 
WA_SEL_INFO_LEAM_STR-ESOKZ sy-vline 
WA_SEL_INFO_LEAM_STR-IDNLF sy-vline 
WA_SEL_INFO_LEAM_STR-TXZ01 sy-vline 
WA_SEL_INFO_LEAM_STR-URZLA sy-vline 
WA_SEL_INFO_LEAM_STR-STAWN sy-vline 
WA_SEL_INFO_LEAM_STR-MAKTX sy-vline 
WA_SEL_INFO_LEAM_STR-LAND1 sy-vline 
WA_SEL_INFO_LEAM_STR-DATLB sy-vline 
WA_SEL_INFO_LEAM_STR-LANGU sy-vline 
WA_SEL_INFO_LEAM_STR-KZ_DR sy-vline      INTO ld_text SEPARATED BY SPACE.

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