ABAP Select data from SAP table ATP_NORMALIZED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATP_NORMALIZED
*  INTO TABLE @DATA(IT_ATP_NORMALIZED2).
*--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_ATP_NORMALIZED INDEX 1 INTO DATA(WA_ATP_NORMALIZED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATP_NORMALIZED>-MATNR = 1.
<ATP_NORMALIZED>-WERKS = 1.
<ATP_NORMALIZED>-LGORT = 1.
<ATP_NORMALIZED>-BERID = 1.
<ATP_NORMALIZED>-SOBKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATP_NORMALIZED-SSKEY, sy-vline,
  WA_ATP_NORMALIZED-SSKEY_EXT, sy-vline,
  WA_ATP_NORMALIZED-CHARG, sy-vline,
  WA_ATP_NORMALIZED-SGT_CATV, sy-vline,
  WA_ATP_NORMALIZED-LIFNR, sy-vline,
  WA_ATP_NORMALIZED-ATPDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATP_NORMALIZED 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_ATP_NORMALIZED 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_ATP_NORMALIZED INTO WA_ATP_NORMALIZED.


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

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

*Conversion exit MATN1, internal->external for field BAUGR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ATP_NORMALIZED-BAUGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATP_NORMALIZED-BAUGR.
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_ATP_NORMALIZED_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
BERID TYPE STRING,
SOBKZ TYPE STRING,
SSKEY TYPE STRING,
SSKEY_EXT TYPE STRING,
CHARG TYPE STRING,
SGT_CATV TYPE STRING,
LIFNR TYPE STRING,
ATPDATE TYPE STRING,
REQQTY TYPE STRING,
CNFQTY TYPE STRING,
ATPCAT TYPE STRING,
DELNR TYPE STRING,
DELPS TYPE STRING,
SUBITEM TYPE STRING,
DELET TYPE STRING,
DEL12 TYPE STRING,
BAUGR TYPE STRING,
EWERK TYPE STRING,
UEPOS TYPE STRING,
SUBSTITUTION_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATP_NORMALIZED_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_ATP_NORMALIZED_STR-MATNR sy-vline 
WA_ATP_NORMALIZED_STR-WERKS sy-vline 
WA_ATP_NORMALIZED_STR-LGORT sy-vline 
WA_ATP_NORMALIZED_STR-BERID sy-vline 
WA_ATP_NORMALIZED_STR-SOBKZ sy-vline 
WA_ATP_NORMALIZED_STR-SSKEY sy-vline 
WA_ATP_NORMALIZED_STR-SSKEY_EXT sy-vline 
WA_ATP_NORMALIZED_STR-CHARG sy-vline 
WA_ATP_NORMALIZED_STR-SGT_CATV sy-vline 
WA_ATP_NORMALIZED_STR-LIFNR sy-vline 
WA_ATP_NORMALIZED_STR-ATPDATE sy-vline 
WA_ATP_NORMALIZED_STR-REQQTY sy-vline 
WA_ATP_NORMALIZED_STR-CNFQTY sy-vline 
WA_ATP_NORMALIZED_STR-ATPCAT sy-vline 
WA_ATP_NORMALIZED_STR-DELNR sy-vline 
WA_ATP_NORMALIZED_STR-DELPS sy-vline 
WA_ATP_NORMALIZED_STR-SUBITEM sy-vline 
WA_ATP_NORMALIZED_STR-DELET sy-vline 
WA_ATP_NORMALIZED_STR-DEL12 sy-vline 
WA_ATP_NORMALIZED_STR-BAUGR sy-vline 
WA_ATP_NORMALIZED_STR-EWERK sy-vline 
WA_ATP_NORMALIZED_STR-UEPOS sy-vline 
WA_ATP_NORMALIZED_STR-SUBSTITUTION_STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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