ABAP Select data from SAP table PMXP_ISSSTE_CE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PMXP_ISSSTE_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 PMXP_ISSSTE_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 PMXP_ISSSTE_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_PMXP_ISSSTE_CE TYPE STANDARD TABLE OF PMXP_ISSSTE_CE,
      WA_PMXP_ISSSTE_CE TYPE PMXP_ISSSTE_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: <PMXP_ISSSTE_CE> TYPE PMXP_ISSSTE_CE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMXP_ISSSTE_CE
*  INTO TABLE @DATA(IT_PMXP_ISSSTE_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_PMXP_ISSSTE_CE INDEX 1 INTO DATA(WA_PMXP_ISSSTE_CE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMXP_ISSSTE_CE>-RAMO = 1.
<PMXP_ISSSTE_CE>-PAGAD = 1.
<PMXP_ISSSTE_CE>-NUMERO = 1.
<PMXP_ISSSTE_CE>-RFCVER = 1.
<PMXP_ISSSTE_CE>-NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMXP_ISSSTE_CE-COBRO, sy-vline,
  WA_PMXP_ISSSTE_CE-STATS, sy-vline,
  WA_PMXP_ISSSTE_CE-PLAZO, sy-vline,
  WA_PMXP_ISSSTE_CE-FROMP, sy-vline,
  WA_PMXP_ISSSTE_CE-TOP, sy-vline,
  WA_PMXP_ISSSTE_CE-RETCOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMXP_ISSSTE_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_PMXP_ISSSTE_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_PMXP_ISSSTE_CE INTO WA_PMXP_ISSSTE_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 PERSONID_EXT
CALL FUNCTION 'CONVERSION_EXIT_PIDEX_OUTPUT'
  EXPORTING
    input =                      WA_PMXP_ISSSTE_CE-PERSONID_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMXP_ISSSTE_CE-PERSONID_EXT.
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_PMXP_ISSSTE_CE_STR, 
RAMO TYPE STRING,
PAGAD TYPE STRING,
NUMERO TYPE STRING,
RFCVER TYPE STRING,
NAME TYPE STRING,
COBRO TYPE STRING,
STATS TYPE STRING,
PLAZO TYPE STRING,
FROMP TYPE STRING,
TOP TYPE STRING,
RETCOD TYPE STRING,
AMOUNT TYPE STRING,
LOANN TYPE STRING,
CURP TYPE STRING,
TIPREG TYPE STRING,
COMMENTS TYPE STRING,
PERSONID_EXT TYPE STRING,
PERNR TYPE STRING,
ICON TYPE STRING,
MSG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMXP_ISSSTE_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_PMXP_ISSSTE_CE_STR-RAMO sy-vline 
WA_PMXP_ISSSTE_CE_STR-PAGAD sy-vline 
WA_PMXP_ISSSTE_CE_STR-NUMERO sy-vline 
WA_PMXP_ISSSTE_CE_STR-RFCVER sy-vline 
WA_PMXP_ISSSTE_CE_STR-NAME sy-vline 
WA_PMXP_ISSSTE_CE_STR-COBRO sy-vline 
WA_PMXP_ISSSTE_CE_STR-STATS sy-vline 
WA_PMXP_ISSSTE_CE_STR-PLAZO sy-vline 
WA_PMXP_ISSSTE_CE_STR-FROMP sy-vline 
WA_PMXP_ISSSTE_CE_STR-TOP sy-vline 
WA_PMXP_ISSSTE_CE_STR-RETCOD sy-vline 
WA_PMXP_ISSSTE_CE_STR-AMOUNT sy-vline 
WA_PMXP_ISSSTE_CE_STR-LOANN sy-vline 
WA_PMXP_ISSSTE_CE_STR-CURP sy-vline 
WA_PMXP_ISSSTE_CE_STR-TIPREG sy-vline 
WA_PMXP_ISSSTE_CE_STR-COMMENTS sy-vline 
WA_PMXP_ISSSTE_CE_STR-PERSONID_EXT sy-vline 
WA_PMXP_ISSSTE_CE_STR-PERNR sy-vline 
WA_PMXP_ISSSTE_CE_STR-ICON sy-vline 
WA_PMXP_ISSSTE_CE_STR-MSG sy-vline      INTO ld_text SEPARATED BY SPACE.

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