ABAP Select data from SAP table WSAM_BASIC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSAM_BASIC
*  INTO TABLE @DATA(IT_WSAM_BASIC2).
*--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_WSAM_BASIC INDEX 1 INTO DATA(WA_WSAM_BASIC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSAM_BASIC>-MATERIAL = 1.
<WSAM_BASIC>-EAN_UPC = 1.
<WSAM_BASIC>-EAN_UPC_C = 1.
<WSAM_BASIC>-EAN_CAT = 1.
<WSAM_BASIC>-NO_EAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSAM_BASIC-MATL_DESC, sy-vline,
  WA_WSAM_BASIC-MATL_CAT, sy-vline,
  WA_WSAM_BASIC-MATL_CAT_D, sy-vline,
  WA_WSAM_BASIC-MATL_TYPE, sy-vline,
  WA_WSAM_BASIC-MATL_TYPE_D, sy-vline,
  WA_WSAM_BASIC-MATL_GROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSAM_BASIC 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_WSAM_BASIC 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_WSAM_BASIC INTO WA_WSAM_BASIC.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WSAM_BASIC-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSAM_BASIC-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit MATN3, internal->external for field HAZ_MAT_NO
CALL FUNCTION 'CONVERSION_EXIT_MATN3_OUTPUT'
  EXPORTING
    input =                      WA_WSAM_BASIC-HAZ_MAT_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSAM_BASIC-HAZ_MAT_NO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit PERKZ, internal->external for field PERIOD_IND_EXP
CALL FUNCTION 'CONVERSION_EXIT_PERKZ_OUTPUT'
  EXPORTING
    input =                      WA_WSAM_BASIC-PERIOD_IND_EXP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WSAM_BASIC-PERIOD_IND_EXP.
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_WSAM_BASIC_STR, 
MATERIAL TYPE STRING,
EAN_UPC TYPE STRING,
EAN_UPC_C TYPE STRING,
EAN_CAT TYPE STRING,
NO_EAN TYPE STRING,
MATL_DESC TYPE STRING,
MATL_CAT TYPE STRING,
MATL_CAT_D TYPE STRING,
MATL_TYPE TYPE STRING,
MATL_TYPE_D TYPE STRING,
MATL_GROUP TYPE STRING,
MATL_GROUP_D TYPE STRING,
ABC_ID TYPE STRING,
ABC_ID_D TYPE STRING,
EXTMATLGRP TYPE STRING,
BASE_UOM TYPE STRING,
GROSS_WT TYPE STRING,
GROSS_WT_C TYPE STRING,
UNIT_OF_WT TYPE STRING,
LENGTH TYPE STRING,
LENGTH_C TYPE STRING,
WIDTH TYPE STRING,
WIDTH_C TYPE STRING,
HEIGHT TYPE STRING,
HEIGHT_C TYPE STRING,
UNIT_DIM TYPE STRING,
PO_UNIT TYPE STRING,
SALES_UNIT TYPE STRING,
TAX_CLASS TYPE STRING,
EMPTIESBOM TYPE STRING,
HAZ_MAT_NO TYPE STRING,
COUNTRYORI TYPE STRING,
COUNTRYORI_D TYPE STRING,
REGIONORIG TYPE STRING,
REGIONORIG_D TYPE STRING,
OLD_MAT_NO TYPE STRING,
GROSS_CONT TYPE STRING,
GROSS_CONT_C TYPE STRING,
NET_CONT TYPE STRING,
NET_CONT_C TYPE STRING,
CONT_UNIT TYPE STRING,
COMPPRUNIT TYPE STRING,
COMPPRUNIT_C TYPE STRING,
MINREMLIFE TYPE STRING,
MINREMLIFE_C TYPE STRING,
SHELF_LIFE TYPE STRING,
SHELF_LIFE_C TYPE STRING,
PERIOD_IND_EXP TYPE STRING,
PERIOD_IND_EXP_D TYPE STRING,
VO_MATERIAL TYPE STRING,
DUMMY_FIELD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSAM_BASIC_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_WSAM_BASIC_STR-MATERIAL sy-vline 
WA_WSAM_BASIC_STR-EAN_UPC sy-vline 
WA_WSAM_BASIC_STR-EAN_UPC_C sy-vline 
WA_WSAM_BASIC_STR-EAN_CAT sy-vline 
WA_WSAM_BASIC_STR-NO_EAN sy-vline 
WA_WSAM_BASIC_STR-MATL_DESC sy-vline 
WA_WSAM_BASIC_STR-MATL_CAT sy-vline 
WA_WSAM_BASIC_STR-MATL_CAT_D sy-vline 
WA_WSAM_BASIC_STR-MATL_TYPE sy-vline 
WA_WSAM_BASIC_STR-MATL_TYPE_D sy-vline 
WA_WSAM_BASIC_STR-MATL_GROUP sy-vline 
WA_WSAM_BASIC_STR-MATL_GROUP_D sy-vline 
WA_WSAM_BASIC_STR-ABC_ID sy-vline 
WA_WSAM_BASIC_STR-ABC_ID_D sy-vline 
WA_WSAM_BASIC_STR-EXTMATLGRP sy-vline 
WA_WSAM_BASIC_STR-BASE_UOM sy-vline 
WA_WSAM_BASIC_STR-GROSS_WT sy-vline 
WA_WSAM_BASIC_STR-GROSS_WT_C sy-vline 
WA_WSAM_BASIC_STR-UNIT_OF_WT sy-vline 
WA_WSAM_BASIC_STR-LENGTH sy-vline 
WA_WSAM_BASIC_STR-LENGTH_C sy-vline 
WA_WSAM_BASIC_STR-WIDTH sy-vline 
WA_WSAM_BASIC_STR-WIDTH_C sy-vline 
WA_WSAM_BASIC_STR-HEIGHT sy-vline 
WA_WSAM_BASIC_STR-HEIGHT_C sy-vline 
WA_WSAM_BASIC_STR-UNIT_DIM sy-vline 
WA_WSAM_BASIC_STR-PO_UNIT sy-vline 
WA_WSAM_BASIC_STR-SALES_UNIT sy-vline 
WA_WSAM_BASIC_STR-TAX_CLASS sy-vline 
WA_WSAM_BASIC_STR-EMPTIESBOM sy-vline 
WA_WSAM_BASIC_STR-HAZ_MAT_NO sy-vline 
WA_WSAM_BASIC_STR-COUNTRYORI sy-vline 
WA_WSAM_BASIC_STR-COUNTRYORI_D sy-vline 
WA_WSAM_BASIC_STR-REGIONORIG sy-vline 
WA_WSAM_BASIC_STR-REGIONORIG_D sy-vline 
WA_WSAM_BASIC_STR-OLD_MAT_NO sy-vline 
WA_WSAM_BASIC_STR-GROSS_CONT sy-vline 
WA_WSAM_BASIC_STR-GROSS_CONT_C sy-vline 
WA_WSAM_BASIC_STR-NET_CONT sy-vline 
WA_WSAM_BASIC_STR-NET_CONT_C sy-vline 
WA_WSAM_BASIC_STR-CONT_UNIT sy-vline 
WA_WSAM_BASIC_STR-COMPPRUNIT sy-vline 
WA_WSAM_BASIC_STR-COMPPRUNIT_C sy-vline 
WA_WSAM_BASIC_STR-MINREMLIFE sy-vline 
WA_WSAM_BASIC_STR-MINREMLIFE_C sy-vline 
WA_WSAM_BASIC_STR-SHELF_LIFE sy-vline 
WA_WSAM_BASIC_STR-SHELF_LIFE_C sy-vline 
WA_WSAM_BASIC_STR-PERIOD_IND_EXP sy-vline 
WA_WSAM_BASIC_STR-PERIOD_IND_EXP_D sy-vline 
WA_WSAM_BASIC_STR-VO_MATERIAL sy-vline 
WA_WSAM_BASIC_STR-DUMMY_FIELD sy-vline      INTO ld_text SEPARATED BY SPACE.

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