ABAP Select data from SAP table PAU_RPCPSAQ0_02_CE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PAU_RPCPSAQ0_02_CE 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 PAU_RPCPSAQ0_02_CE. 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 PAU_RPCPSAQ0_02_CE 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_PAU_RPCPSAQ0_02_CE TYPE STANDARD TABLE OF PAU_RPCPSAQ0_02_CE,
      WA_PAU_RPCPSAQ0_02_CE TYPE PAU_RPCPSAQ0_02_CE,
      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: <PAU_RPCPSAQ0_02_CE> TYPE PAU_RPCPSAQ0_02_CE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PAU_RPCPSAQ0_02_CE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PAU_RPCPSAQ0_02_CE
  INTO TABLE IT_PAU_RPCPSAQ0_02_CE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAU_RPCPSAQ0_02_CE
*  INTO TABLE @DATA(IT_PAU_RPCPSAQ0_02_CE2).
*--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_PAU_RPCPSAQ0_02_CE INDEX 1 INTO DATA(WA_PAU_RPCPSAQ0_02_CE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PAU_RPCPSAQ0_02_CE ASSIGNING <PAU_RPCPSAQ0_02_CE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAU_RPCPSAQ0_02_CE>-ABNUM = 1.
<PAU_RPCPSAQ0_02_CE>-BRNUM = 1.
<PAU_RPCPSAQ0_02_CE>-PERSID = 1.
<PAU_RPCPSAQ0_02_CE>-PERNR = 1.
<PAU_RPCPSAQ0_02_CE>-EDITN = 1.

ENDLOOP.

LOOP AT IT_PAU_RPCPSAQ0_02_CE INTO WA_PAU_RPCPSAQ0_02_CE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAU_RPCPSAQ0_02_CE-PAYDT, sy-vline,
  WA_PAU_RPCPSAQ0_02_CE-TAXC, sy-vline,
  WA_PAU_RPCPSAQ0_02_CE-TAXCOMP, sy-vline,
  WA_PAU_RPCPSAQ0_02_CE-TAXFCOMP, sy-vline,
  WA_PAU_RPCPSAQ0_02_CE-PCODE, sy-vline,
  WA_PAU_RPCPSAQ0_02_CE-AMI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAU_RPCPSAQ0_02_CE 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_PAU_RPCPSAQ0_02_CE 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_PAU_RPCPSAQ0_02_CE INTO WA_PAU_RPCPSAQ0_02_CE.


*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 PIDEX, internal->external for field PERSID
CALL FUNCTION 'CONVERSION_EXIT_PIDEX_OUTPUT'
  EXPORTING
    input =                      WA_PAU_RPCPSAQ0_02_CE-PERSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAU_RPCPSAQ0_02_CE-PERSID.
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_PAU_RPCPSAQ0_02_CE_STR, 
ABNUM TYPE STRING,
BRNUM TYPE STRING,
PERSID TYPE STRING,
PERNR TYPE STRING,
EDITN TYPE STRING,
PAYDT TYPE STRING,
TAXC TYPE STRING,
TAXCOMP TYPE STRING,
TAXFCOMP TYPE STRING,
PCODE TYPE STRING,
AMI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAU_RPCPSAQ0_02_CE_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_PAU_RPCPSAQ0_02_CE_STR-ABNUM sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-BRNUM sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-PERSID sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-PERNR sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-EDITN sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-PAYDT sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-TAXC sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-TAXCOMP sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-TAXFCOMP sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-PCODE sy-vline 
WA_PAU_RPCPSAQ0_02_CE_STR-AMI sy-vline      INTO ld_text SEPARATED BY SPACE.

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