ABAP Select data from SAP table WLAY_SLE_MATERIAL_READ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WLAY_SLE_MATERIAL_READ
*  INTO TABLE @DATA(IT_WLAY_SLE_MATERIAL_READ2).
*--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_WLAY_SLE_MATERIAL_READ INDEX 1 INTO DATA(WA_WLAY_SLE_MATERIAL_READ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WLAY_SLE_MATERIAL_READ>-MATERIAL_DATA = 1.
<WLAY_SLE_MATERIAL_READ>-MATERIAL = 1.
<WLAY_SLE_MATERIAL_READ>-MATL_DESC = 1.
<WLAY_SLE_MATERIAL_READ>-MULT_PLACE = 1.
<WLAY_SLE_MATERIAL_READ>-UNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WLAY_SLE_MATERIAL_READ-UNIT_ISO, sy-vline,
  WA_WLAY_SLE_MATERIAL_READ-EAN_UPC, sy-vline,
  WA_WLAY_SLE_MATERIAL_READ-MATL_CAT, sy-vline,
  WA_WLAY_SLE_MATERIAL_READ-MATL_GROUP, sy-vline,
  WA_WLAY_SLE_MATERIAL_READ-HEIGHT, sy-vline,
  WA_WLAY_SLE_MATERIAL_READ-WIDTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WLAY_SLE_MATERIAL_READ 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_WLAY_SLE_MATERIAL_READ 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_WLAY_SLE_MATERIAL_READ INTO WA_WLAY_SLE_MATERIAL_READ.


*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 MATN5, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_WLAY_SLE_MATERIAL_READ-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLAY_SLE_MATERIAL_READ-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit MATN5, internal->external for field CONF_MATL
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_WLAY_SLE_MATERIAL_READ-CONF_MATL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLAY_SLE_MATERIAL_READ-CONF_MATL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNL, internal->external for field CONF_MATL_EXTERNAL
CALL FUNCTION 'CONVERSION_EXIT_MATNL_OUTPUT'
  EXPORTING
    input =                      WA_WLAY_SLE_MATERIAL_READ-CONF_MATL_EXTERNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLAY_SLE_MATERIAL_READ-CONF_MATL_EXTERNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNW, internal->external for field CONF_MATL_VERSION
CALL FUNCTION 'CONVERSION_EXIT_MATNW_OUTPUT'
  EXPORTING
    input =                      WA_WLAY_SLE_MATERIAL_READ-CONF_MATL_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLAY_SLE_MATERIAL_READ-CONF_MATL_VERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNL, internal->external for field MATERIAL_EXTERNAL
CALL FUNCTION 'CONVERSION_EXIT_MATNL_OUTPUT'
  EXPORTING
    input =                      WA_WLAY_SLE_MATERIAL_READ-MATERIAL_EXTERNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLAY_SLE_MATERIAL_READ-MATERIAL_EXTERNAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATNW, internal->external for field MATERIAL_VERSION
CALL FUNCTION 'CONVERSION_EXIT_MATNW_OUTPUT'
  EXPORTING
    input =                      WA_WLAY_SLE_MATERIAL_READ-MATERIAL_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLAY_SLE_MATERIAL_READ-MATERIAL_VERSION.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WLAY_SLE_MATERIAL_READ-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLAY_SLE_MATERIAL_READ-MATNR.
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_WLAY_SLE_MATERIAL_READ_STR, 
MATERIAL_DATA TYPE STRING,
MATERIAL TYPE STRING,
MATL_DESC TYPE STRING,
MULT_PLACE TYPE STRING,
UNIT TYPE STRING,
UNIT_ISO TYPE STRING,
EAN_UPC TYPE STRING,
MATL_CAT TYPE STRING,
MATL_GROUP TYPE STRING,
HEIGHT TYPE STRING,
WIDTH TYPE STRING,
LENGTH TYPE STRING,
UNIT_DIM TYPE STRING,
UNIT_DIM_ISO TYPE STRING,
SORT_SEQ TYPE STRING,
SHELF_BOARD_NUMBER TYPE STRING,
FACING TYPE STRING,
QUANTITIES TYPE STRING,
SALES TYPE STRING,
MOVEMENT TYPE STRING,
NET_NET_PURCHASE_PRICE TYPE STRING,
PRICING_CURRENCY TYPE STRING,
PRICING_CURRENCY_ISO TYPE STRING,
CURRENT_SALES_PRICE TYPE STRING,
SALES_CURRENCY TYPE STRING,
SALES_CURRENCY_ISO TYPE STRING,
SALES_P_UNIT TYPE STRING,
SALES_UNIT TYPE STRING,
SALES_UNIT_ISO TYPE STRING,
VENDOR TYPE STRING,
PRE_VENDOR TYPE STRING,
CONF_MATL TYPE STRING,
MULT_COUNT TYPE STRING,
FRONT TYPE STRING,
SHELF_QUANTITY_MAX TYPE STRING,
SHELF_QUANTITY_OPT TYPE STRING,
PRES_QNT TYPE STRING,
LAYMOD_NUM TYPE STRING,
LAYMOD_VAR TYPE STRING,
EXCLUSION TYPE STRING,
CONF_MATL_EXTERNAL TYPE STRING,
CONF_MATL_GUID TYPE STRING,
CONF_MATL_VERSION TYPE STRING,
MATERIAL_EXTERNAL TYPE STRING,
MATERIAL_GUID TYPE STRING,
MATERIAL_VERSION TYPE STRING,
MATERIAL_LONG TYPE STRING,
CONF_MATL_LONG TYPE STRING,
MATERIAL_DESCR TYPE STRING,
HIERARCHY TYPE STRING,
MANDT TYPE STRING,
HIER_ID TYPE STRING,
MATNR TYPE STRING,
NODE TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
MAINFLG TYPE STRING,
STRATEGY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WLAY_SLE_MATERIAL_READ_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_WLAY_SLE_MATERIAL_READ_STR-MATERIAL_DATA sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATERIAL sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATL_DESC sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MULT_PLACE sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-UNIT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-UNIT_ISO sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-EAN_UPC sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATL_CAT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATL_GROUP sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-HEIGHT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-WIDTH sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-LENGTH sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-UNIT_DIM sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-UNIT_DIM_ISO sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SORT_SEQ sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SHELF_BOARD_NUMBER sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-FACING sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-QUANTITIES sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SALES sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MOVEMENT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-NET_NET_PURCHASE_PRICE sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-PRICING_CURRENCY sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-PRICING_CURRENCY_ISO sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-CURRENT_SALES_PRICE sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SALES_CURRENCY sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SALES_CURRENCY_ISO sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SALES_P_UNIT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SALES_UNIT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SALES_UNIT_ISO sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-VENDOR sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-PRE_VENDOR sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-CONF_MATL sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MULT_COUNT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-FRONT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SHELF_QUANTITY_MAX sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-SHELF_QUANTITY_OPT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-PRES_QNT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-LAYMOD_NUM sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-LAYMOD_VAR sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-EXCLUSION sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-CONF_MATL_EXTERNAL sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-CONF_MATL_GUID sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-CONF_MATL_VERSION sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATERIAL_EXTERNAL sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATERIAL_GUID sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATERIAL_VERSION sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATERIAL_LONG sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-CONF_MATL_LONG sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATERIAL_DESCR sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-HIERARCHY sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MANDT sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-HIER_ID sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MATNR sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-NODE sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-DATE_FROM sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-DATE_TO sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-MAINFLG sy-vline 
WA_WLAY_SLE_MATERIAL_READ_STR-STRATEGY sy-vline      INTO ld_text SEPARATED BY SPACE.

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