ABAP Select data from SAP table LEDLV_IT_GEN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LEDLV_IT_GEN
*  INTO TABLE @DATA(IT_LEDLV_IT_GEN2).
*--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_LEDLV_IT_GEN INDEX 1 INTO DATA(WA_LEDLV_IT_GEN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LEDLV_IT_GEN>-DELIV_NUMB = 1.
<LEDLV_IT_GEN>-ITM_NUMBER = 1.
<LEDLV_IT_GEN>-MATERIAL = 1.
<LEDLV_IT_GEN>-MAT_ENTRD = 1.
<LEDLV_IT_GEN>-SHORT_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LEDLV_IT_GEN-BATCH, sy-vline,
  WA_LEDLV_IT_GEN-CUST_MAT, sy-vline,
  WA_LEDLV_IT_GEN-DLV_QTY, sy-vline,
  WA_LEDLV_IT_GEN-SALES_UNIT, sy-vline,
  WA_LEDLV_IT_GEN-DLV_QTY_STOCK, sy-vline,
  WA_LEDLV_IT_GEN-BASE_UOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LEDLV_IT_GEN 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_LEDLV_IT_GEN 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_LEDLV_IT_GEN INTO WA_LEDLV_IT_GEN.


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

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

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

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

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

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

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

*Conversion exit EAN11, internal->external for field EAN_UPC
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_LEDLV_IT_GEN-EAN_UPC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDLV_IT_GEN-EAN_UPC.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field SP_STCK_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEDLV_IT_GEN-SP_STCK_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEDLV_IT_GEN-SP_STCK_NO.
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_LEDLV_IT_GEN_STR, 
DELIV_NUMB TYPE STRING,
ITM_NUMBER TYPE STRING,
MATERIAL TYPE STRING,
MAT_ENTRD TYPE STRING,
SHORT_TEXT TYPE STRING,
BATCH TYPE STRING,
CUST_MAT TYPE STRING,
DLV_QTY TYPE STRING,
SALES_UNIT TYPE STRING,
DLV_QTY_STOCK TYPE STRING,
BASE_UOM TYPE STRING,
NET_WEIGHT TYPE STRING,
GROSS_WT TYPE STRING,
UNIT_OF_WT TYPE STRING,
VOLUME TYPE STRING,
VOLUMUNIT TYPE STRING,
STGE_BIN TYPE STRING,
HIERARITEM TYPE STRING,
USEHIERITM TYPE STRING,
LOADINGGRP TYPE STRING,
TRANS_GRP TYPE STRING,
DLV_GROUP TYPE STRING,
EAN_UPC TYPE STRING,
BOMEXPL_NO TYPE STRING,
REC_POINT TYPE STRING,
MATFRGTGRP TYPE STRING,
ITEM_CATEG TYPE STRING,
PART_DLV TYPE STRING,
OVERDEL_UNLIM TYPE STRING,
OVERDELTOL TYPE STRING,
UNDER_TOL TYPE STRING,
BTCH_SPLIT TYPE STRING,
BTCHEVALTYP TYPE STRING,
ITEM_TYPE TYPE STRING,
SPEC_STOCK TYPE STRING,
PACKCNTR TYPE STRING,
MAT_GRP_SM TYPE STRING,
DB_CR_IND TYPE STRING,
PROMOTION TYPE STRING,
ENVT_RLVT TYPE STRING,
MOVE_TYPE TYPE STRING,
MOVE_TYPE_WM TYPE STRING,
STOCK_TYPE TYPE STRING,
MVT_IND TYPE STRING,
CUM_BTCH_QTY TYPE STRING,
CUM_BTCH__GR_WT TYPE STRING,
CUM_BTCH_NT_WT TYPE STRING,
CUM_BTCH_VOL TYPE STRING,
CUMBTCHWTUN TYPE STRING,
CUMBTCHVOLUN TYPE STRING,
STOCK_CAT TYPE STRING,
SP_STCK_NO TYPE STRING,
MATL_GROUP TYPE STRING,
MATL_TYPE TYPE STRING,
PROD_HIER TYPE STRING,
MATL_GRP_1 TYPE STRING,
MATL_GRP_2 TYPE STRING,
MATL_GRP_3 TYPE STRING,
MATL_GRP_4 TYPE STRING,
MATL_GRP_5 TYPE STRING,
CUST_GRP1 TYPE STRING,
CUST_GRP2 TYPE STRING,
CUST_GRP3 TYPE STRING,
CUST_GRP4 TYPE STRING,
CUST_GRP5 TYPE STRING,
DEL_QTY_FLO TYPE STRING,
CONV_FACT TYPE STRING,
DLV_QTY_ST_FLO TYPE STRING,
SALES_QTY_DENOM TYPE STRING,
SALES_QTY_NUM TYPE STRING,
FLG_LEAD_UNIT TYPE STRING,
CUMBTCHQTYSU_FLO TYPE STRING,
CUMBTCHQTYSU TYPE STRING,
VAL_TYPE TYPE STRING,
MBDAT TYPE STRING,
UECHA TYPE STRING,
KNUMH_CH TYPE STRING,
CUOBJ TYPE STRING,
CUOBJ_CH TYPE STRING,
SHKZG TYPE STRING,
ABRVW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LEDLV_IT_GEN_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_LEDLV_IT_GEN_STR-DELIV_NUMB sy-vline 
WA_LEDLV_IT_GEN_STR-ITM_NUMBER sy-vline 
WA_LEDLV_IT_GEN_STR-MATERIAL sy-vline 
WA_LEDLV_IT_GEN_STR-MAT_ENTRD sy-vline 
WA_LEDLV_IT_GEN_STR-SHORT_TEXT sy-vline 
WA_LEDLV_IT_GEN_STR-BATCH sy-vline 
WA_LEDLV_IT_GEN_STR-CUST_MAT sy-vline 
WA_LEDLV_IT_GEN_STR-DLV_QTY sy-vline 
WA_LEDLV_IT_GEN_STR-SALES_UNIT sy-vline 
WA_LEDLV_IT_GEN_STR-DLV_QTY_STOCK sy-vline 
WA_LEDLV_IT_GEN_STR-BASE_UOM sy-vline 
WA_LEDLV_IT_GEN_STR-NET_WEIGHT sy-vline 
WA_LEDLV_IT_GEN_STR-GROSS_WT sy-vline 
WA_LEDLV_IT_GEN_STR-UNIT_OF_WT sy-vline 
WA_LEDLV_IT_GEN_STR-VOLUME sy-vline 
WA_LEDLV_IT_GEN_STR-VOLUMUNIT sy-vline 
WA_LEDLV_IT_GEN_STR-STGE_BIN sy-vline 
WA_LEDLV_IT_GEN_STR-HIERARITEM sy-vline 
WA_LEDLV_IT_GEN_STR-USEHIERITM sy-vline 
WA_LEDLV_IT_GEN_STR-LOADINGGRP sy-vline 
WA_LEDLV_IT_GEN_STR-TRANS_GRP sy-vline 
WA_LEDLV_IT_GEN_STR-DLV_GROUP sy-vline 
WA_LEDLV_IT_GEN_STR-EAN_UPC sy-vline 
WA_LEDLV_IT_GEN_STR-BOMEXPL_NO sy-vline 
WA_LEDLV_IT_GEN_STR-REC_POINT sy-vline 
WA_LEDLV_IT_GEN_STR-MATFRGTGRP sy-vline 
WA_LEDLV_IT_GEN_STR-ITEM_CATEG sy-vline 
WA_LEDLV_IT_GEN_STR-PART_DLV sy-vline 
WA_LEDLV_IT_GEN_STR-OVERDEL_UNLIM sy-vline 
WA_LEDLV_IT_GEN_STR-OVERDELTOL sy-vline 
WA_LEDLV_IT_GEN_STR-UNDER_TOL sy-vline 
WA_LEDLV_IT_GEN_STR-BTCH_SPLIT sy-vline 
WA_LEDLV_IT_GEN_STR-BTCHEVALTYP sy-vline 
WA_LEDLV_IT_GEN_STR-ITEM_TYPE sy-vline 
WA_LEDLV_IT_GEN_STR-SPEC_STOCK sy-vline 
WA_LEDLV_IT_GEN_STR-PACKCNTR sy-vline 
WA_LEDLV_IT_GEN_STR-MAT_GRP_SM sy-vline 
WA_LEDLV_IT_GEN_STR-DB_CR_IND sy-vline 
WA_LEDLV_IT_GEN_STR-PROMOTION sy-vline 
WA_LEDLV_IT_GEN_STR-ENVT_RLVT sy-vline 
WA_LEDLV_IT_GEN_STR-MOVE_TYPE sy-vline 
WA_LEDLV_IT_GEN_STR-MOVE_TYPE_WM sy-vline 
WA_LEDLV_IT_GEN_STR-STOCK_TYPE sy-vline 
WA_LEDLV_IT_GEN_STR-MVT_IND sy-vline 
WA_LEDLV_IT_GEN_STR-CUM_BTCH_QTY sy-vline 
WA_LEDLV_IT_GEN_STR-CUM_BTCH__GR_WT sy-vline 
WA_LEDLV_IT_GEN_STR-CUM_BTCH_NT_WT sy-vline 
WA_LEDLV_IT_GEN_STR-CUM_BTCH_VOL sy-vline 
WA_LEDLV_IT_GEN_STR-CUMBTCHWTUN sy-vline 
WA_LEDLV_IT_GEN_STR-CUMBTCHVOLUN sy-vline 
WA_LEDLV_IT_GEN_STR-STOCK_CAT sy-vline 
WA_LEDLV_IT_GEN_STR-SP_STCK_NO sy-vline 
WA_LEDLV_IT_GEN_STR-MATL_GROUP sy-vline 
WA_LEDLV_IT_GEN_STR-MATL_TYPE sy-vline 
WA_LEDLV_IT_GEN_STR-PROD_HIER sy-vline 
WA_LEDLV_IT_GEN_STR-MATL_GRP_1 sy-vline 
WA_LEDLV_IT_GEN_STR-MATL_GRP_2 sy-vline 
WA_LEDLV_IT_GEN_STR-MATL_GRP_3 sy-vline 
WA_LEDLV_IT_GEN_STR-MATL_GRP_4 sy-vline 
WA_LEDLV_IT_GEN_STR-MATL_GRP_5 sy-vline 
WA_LEDLV_IT_GEN_STR-CUST_GRP1 sy-vline 
WA_LEDLV_IT_GEN_STR-CUST_GRP2 sy-vline 
WA_LEDLV_IT_GEN_STR-CUST_GRP3 sy-vline 
WA_LEDLV_IT_GEN_STR-CUST_GRP4 sy-vline 
WA_LEDLV_IT_GEN_STR-CUST_GRP5 sy-vline 
WA_LEDLV_IT_GEN_STR-DEL_QTY_FLO sy-vline 
WA_LEDLV_IT_GEN_STR-CONV_FACT sy-vline 
WA_LEDLV_IT_GEN_STR-DLV_QTY_ST_FLO sy-vline 
WA_LEDLV_IT_GEN_STR-SALES_QTY_DENOM sy-vline 
WA_LEDLV_IT_GEN_STR-SALES_QTY_NUM sy-vline 
WA_LEDLV_IT_GEN_STR-FLG_LEAD_UNIT sy-vline 
WA_LEDLV_IT_GEN_STR-CUMBTCHQTYSU_FLO sy-vline 
WA_LEDLV_IT_GEN_STR-CUMBTCHQTYSU sy-vline 
WA_LEDLV_IT_GEN_STR-VAL_TYPE sy-vline 
WA_LEDLV_IT_GEN_STR-MBDAT sy-vline 
WA_LEDLV_IT_GEN_STR-UECHA sy-vline 
WA_LEDLV_IT_GEN_STR-KNUMH_CH sy-vline 
WA_LEDLV_IT_GEN_STR-CUOBJ sy-vline 
WA_LEDLV_IT_GEN_STR-CUOBJ_CH sy-vline 
WA_LEDLV_IT_GEN_STR-SHKZG sy-vline 
WA_LEDLV_IT_GEN_STR-ABRVW sy-vline      INTO ld_text SEPARATED BY SPACE.

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