ABAP Select data from SAP table PCH_ASM_ZUSDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCH_ASM_ZUSDATA
*  INTO TABLE @DATA(IT_PCH_ASM_ZUSDATA2).
*--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_PCH_ASM_ZUSDATA INDEX 1 INTO DATA(WA_PCH_ASM_ZUSDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCH_ASM_ZUSDATA>-FIRMATXT = 1.
<PCH_ASM_ZUSDATA>-TITLESTRING = 1.
<PCH_ASM_ZUSDATA>-TXT002 = 1.
<PCH_ASM_ZUSDATA>-PGNO = 1.
<PCH_ASM_ZUSDATA>-ASMCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCH_ASM_ZUSDATA-LOCDATE, sy-vline,
  WA_PCH_ASM_ZUSDATA-HBTXT1, sy-vline,
  WA_PCH_ASM_ZUSDATA-GESCHTXT, sy-vline,
  WA_PCH_ASM_ZUSDATA-LOCTIME, sy-vline,
  WA_PCH_ASM_ZUSDATA-HBTXT2, sy-vline,
  WA_PCH_ASM_ZUSDATA-LN5COL01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCH_ASM_ZUSDATA 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_PCH_ASM_ZUSDATA 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_PCH_ASM_ZUSDATA INTO WA_PCH_ASM_ZUSDATA.


*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 ASMCD, internal->external for field ASMCODE
CALL FUNCTION 'CONVERSION_EXIT_ASMCD_OUTPUT'
  EXPORTING
    input =                      WA_PCH_ASM_ZUSDATA-ASMCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCH_ASM_ZUSDATA-ASMCODE.
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_PCH_ASM_ZUSDATA_STR, 
FIRMATXT TYPE STRING,
TITLESTRING TYPE STRING,
TXT002 TYPE STRING,
PGNO TYPE STRING,
ASMCODE TYPE STRING,
LOCDATE TYPE STRING,
HBTXT1 TYPE STRING,
GESCHTXT TYPE STRING,
LOCTIME TYPE STRING,
HBTXT2 TYPE STRING,
LN5COL01 TYPE STRING,
LN5COL02 TYPE STRING,
LN5COL03 TYPE STRING,
LN5COL04 TYPE STRING,
LN5COL05 TYPE STRING,
LN6COL01 TYPE STRING,
LN6COL02 TYPE STRING,
LN6COL03 TYPE STRING,
LN6COL04 TYPE STRING,
LN6COL05 TYPE STRING,
LN6COL06 TYPE STRING,
LN6COL07 TYPE STRING,
LN6COL08 TYPE STRING,
LN6COL09 TYPE STRING,
LN6COL10 TYPE STRING,
ZUSGBLST TYPE STRING,
TXT012 TYPE STRING,
SUMANZ TYPE STRING,
LOHN1 TYPE STRING,
LOHN2 TYPE STRING,
LOHN3 TYPE STRING,
LOHN4 TYPE STRING,
ANZ1 TYPE STRING,
ANZ2 TYPE STRING,
ANZ3 TYPE STRING,
ANZ4 TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCH_ASM_ZUSDATA_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_PCH_ASM_ZUSDATA_STR-FIRMATXT sy-vline 
WA_PCH_ASM_ZUSDATA_STR-TITLESTRING sy-vline 
WA_PCH_ASM_ZUSDATA_STR-TXT002 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-PGNO sy-vline 
WA_PCH_ASM_ZUSDATA_STR-ASMCODE sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LOCDATE sy-vline 
WA_PCH_ASM_ZUSDATA_STR-HBTXT1 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-GESCHTXT sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LOCTIME sy-vline 
WA_PCH_ASM_ZUSDATA_STR-HBTXT2 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN5COL01 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN5COL02 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN5COL03 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN5COL04 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN5COL05 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL01 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL02 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL03 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL04 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL05 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL06 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL07 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL08 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL09 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LN6COL10 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-ZUSGBLST sy-vline 
WA_PCH_ASM_ZUSDATA_STR-TXT012 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-SUMANZ sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LOHN1 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LOHN2 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LOHN3 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-LOHN4 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-ANZ1 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-ANZ2 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-ANZ3 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-ANZ4 sy-vline 
WA_PCH_ASM_ZUSDATA_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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