ABAP Select data from SAP table LEINT_PIKP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LEINT_PIKP
*  INTO TABLE @DATA(IT_LEINT_PIKP2).
*--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_LEINT_PIKP INDEX 1 INTO DATA(WA_LEINT_PIKP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LEINT_PIKP>-PACKNR = 1.
<LEINT_PIKP>-HDCOUNT = 1.
<LEINT_PIKP>-PIID = 1.
<LEINT_PIKP>-PROP_PIID = 1.
<LEINT_PIKP>-CONTENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LEINT_PIKP-PARTID, sy-vline,
  WA_LEINT_PIKP-HEIGHT, sy-vline,
  WA_LEINT_PIKP-WIDTH, sy-vline,
  WA_LEINT_PIKP-LENGTH, sy-vline,
  WA_LEINT_PIKP-IHEIGHT, sy-vline,
  WA_LEINT_PIKP-IWIDTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LEINT_PIKP 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_LEINT_PIKP 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_LEINT_PIKP INTO WA_LEINT_PIKP.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field TMUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LEINT_PIKP-TMUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEINT_PIKP-TMUOM.
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_LEINT_PIKP_STR, 
PACKNR TYPE STRING,
HDCOUNT TYPE STRING,
PIID TYPE STRING,
PROP_PIID TYPE STRING,
CONTENT TYPE STRING,
PARTID TYPE STRING,
HEIGHT TYPE STRING,
WIDTH TYPE STRING,
LENGTH TYPE STRING,
IHEIGHT TYPE STRING,
IWIDTH TYPE STRING,
ILENGTH TYPE STRING,
UNITDIM TYPE STRING,
SIZEFIX TYPE STRING,
TOTLVOL TYPE STRING,
LOADVOL TYPE STRING,
ALLOVOL TYPE STRING,
UNITVOL_MAX TYPE STRING,
TAREVOL TYPE STRING,
UNITVOL TYPE STRING,
VOLUMFIX TYPE STRING,
TOLEVOL TYPE STRING,
TOTLWEI TYPE STRING,
LOADWEI TYPE STRING,
ALLOWEI TYPE STRING,
UNITWEI_MAX TYPE STRING,
TAREWEI TYPE STRING,
UNITWEI TYPE STRING,
WEIGHTFIX TYPE STRING,
TOLEWEI TYPE STRING,
MAXSTWE TYPE STRING,
STFAC TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
CHNAM TYPE STRING,
POBJST TYPE STRING,
SHIPLABEL TYPE STRING,
INDCLOPA TYPE STRING,
CHECKPROF TYPE STRING,
VEGR1 TYPE STRING,
VEGR2 TYPE STRING,
VEGR3 TYPE STRING,
VEGR4 TYPE STRING,
VEGR5 TYPE STRING,
LGNUM TYPE STRING,
STDTM TYPE STRING,
VTMRT TYPE STRING,
EXEMT TYPE STRING,
DSPTX TYPE STRING,
ACTSQ TYPE STRING,
HDRWC TYPE STRING,
BILLP TYPE STRING,
SHIPP TYPE STRING,
VENDR TYPE STRING,
PURIR TYPE STRING,
PIRTX TYPE STRING,
AGRMT TYPE STRING,
AGRTX TYPE STRING,
SMTNR TYPE STRING,
TMUOM TYPE STRING,
CHPPC TYPE STRING,
CHPTM TYPE STRING,
CHPVP TYPE STRING,
CHPVT TYPE STRING,
RQSCF TYPE STRING,
INTLV TYPE STRING,
HU_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LEINT_PIKP_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_LEINT_PIKP_STR-PACKNR sy-vline 
WA_LEINT_PIKP_STR-HDCOUNT sy-vline 
WA_LEINT_PIKP_STR-PIID sy-vline 
WA_LEINT_PIKP_STR-PROP_PIID sy-vline 
WA_LEINT_PIKP_STR-CONTENT sy-vline 
WA_LEINT_PIKP_STR-PARTID sy-vline 
WA_LEINT_PIKP_STR-HEIGHT sy-vline 
WA_LEINT_PIKP_STR-WIDTH sy-vline 
WA_LEINT_PIKP_STR-LENGTH sy-vline 
WA_LEINT_PIKP_STR-IHEIGHT sy-vline 
WA_LEINT_PIKP_STR-IWIDTH sy-vline 
WA_LEINT_PIKP_STR-ILENGTH sy-vline 
WA_LEINT_PIKP_STR-UNITDIM sy-vline 
WA_LEINT_PIKP_STR-SIZEFIX sy-vline 
WA_LEINT_PIKP_STR-TOTLVOL sy-vline 
WA_LEINT_PIKP_STR-LOADVOL sy-vline 
WA_LEINT_PIKP_STR-ALLOVOL sy-vline 
WA_LEINT_PIKP_STR-UNITVOL_MAX sy-vline 
WA_LEINT_PIKP_STR-TAREVOL sy-vline 
WA_LEINT_PIKP_STR-UNITVOL sy-vline 
WA_LEINT_PIKP_STR-VOLUMFIX sy-vline 
WA_LEINT_PIKP_STR-TOLEVOL sy-vline 
WA_LEINT_PIKP_STR-TOTLWEI sy-vline 
WA_LEINT_PIKP_STR-LOADWEI sy-vline 
WA_LEINT_PIKP_STR-ALLOWEI sy-vline 
WA_LEINT_PIKP_STR-UNITWEI_MAX sy-vline 
WA_LEINT_PIKP_STR-TAREWEI sy-vline 
WA_LEINT_PIKP_STR-UNITWEI sy-vline 
WA_LEINT_PIKP_STR-WEIGHTFIX sy-vline 
WA_LEINT_PIKP_STR-TOLEWEI sy-vline 
WA_LEINT_PIKP_STR-MAXSTWE sy-vline 
WA_LEINT_PIKP_STR-STFAC sy-vline 
WA_LEINT_PIKP_STR-CRDAT sy-vline 
WA_LEINT_PIKP_STR-CRNAM sy-vline 
WA_LEINT_PIKP_STR-CHDAT sy-vline 
WA_LEINT_PIKP_STR-CHTIM sy-vline 
WA_LEINT_PIKP_STR-CHNAM sy-vline 
WA_LEINT_PIKP_STR-POBJST sy-vline 
WA_LEINT_PIKP_STR-SHIPLABEL sy-vline 
WA_LEINT_PIKP_STR-INDCLOPA sy-vline 
WA_LEINT_PIKP_STR-CHECKPROF sy-vline 
WA_LEINT_PIKP_STR-VEGR1 sy-vline 
WA_LEINT_PIKP_STR-VEGR2 sy-vline 
WA_LEINT_PIKP_STR-VEGR3 sy-vline 
WA_LEINT_PIKP_STR-VEGR4 sy-vline 
WA_LEINT_PIKP_STR-VEGR5 sy-vline 
WA_LEINT_PIKP_STR-LGNUM sy-vline 
WA_LEINT_PIKP_STR-STDTM sy-vline 
WA_LEINT_PIKP_STR-VTMRT sy-vline 
WA_LEINT_PIKP_STR-EXEMT sy-vline 
WA_LEINT_PIKP_STR-DSPTX sy-vline 
WA_LEINT_PIKP_STR-ACTSQ sy-vline 
WA_LEINT_PIKP_STR-HDRWC sy-vline 
WA_LEINT_PIKP_STR-BILLP sy-vline 
WA_LEINT_PIKP_STR-SHIPP sy-vline 
WA_LEINT_PIKP_STR-VENDR sy-vline 
WA_LEINT_PIKP_STR-PURIR sy-vline 
WA_LEINT_PIKP_STR-PIRTX sy-vline 
WA_LEINT_PIKP_STR-AGRMT sy-vline 
WA_LEINT_PIKP_STR-AGRTX sy-vline 
WA_LEINT_PIKP_STR-SMTNR sy-vline 
WA_LEINT_PIKP_STR-TMUOM sy-vline 
WA_LEINT_PIKP_STR-CHPPC sy-vline 
WA_LEINT_PIKP_STR-CHPTM sy-vline 
WA_LEINT_PIKP_STR-CHPVP sy-vline 
WA_LEINT_PIKP_STR-CHPVT sy-vline 
WA_LEINT_PIKP_STR-RQSCF sy-vline 
WA_LEINT_PIKP_STR-INTLV sy-vline 
WA_LEINT_PIKP_STR-HU_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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