ABAP Select data from SAP table PSAP_HSAPOAP0_SUBTAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PSAP_HSAPOAP0_SUBTAB 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 PSAP_HSAPOAP0_SUBTAB. 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 PSAP_HSAPOAP0_SUBTAB 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_PSAP_HSAPOAP0_SUBTAB TYPE STANDARD TABLE OF PSAP_HSAPOAP0_SUBTAB,
      WA_PSAP_HSAPOAP0_SUBTAB TYPE PSAP_HSAPOAP0_SUBTAB,
      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: <PSAP_HSAPOAP0_SUBTAB> TYPE PSAP_HSAPOAP0_SUBTAB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PSAP_HSAPOAP0_SUBTAB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PSAP_HSAPOAP0_SUBTAB
  INTO TABLE IT_PSAP_HSAPOAP0_SUBTAB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSAP_HSAPOAP0_SUBTAB
*  INTO TABLE @DATA(IT_PSAP_HSAPOAP0_SUBTAB2).
*--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_PSAP_HSAPOAP0_SUBTAB INDEX 1 INTO DATA(WA_PSAP_HSAPOAP0_SUBTAB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PSAP_HSAPOAP0_SUBTAB ASSIGNING <PSAP_HSAPOAP0_SUBTAB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSAP_HSAPOAP0_SUBTAB>-FNAME = 1.
<PSAP_HSAPOAP0_SUBTAB>-EEGRD = 1.
<PSAP_HSAPOAP0_SUBTAB>-PERNR = 1.
<PSAP_HSAPOAP0_SUBTAB>-AMT1A = 1.
<PSAP_HSAPOAP0_SUBTAB>-AMT1B = 1.

ENDLOOP.

LOOP AT IT_PSAP_HSAPOAP0_SUBTAB INTO WA_PSAP_HSAPOAP0_SUBTAB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSAP_HSAPOAP0_SUBTAB-PYPRD, sy-vline,
  WA_PSAP_HSAPOAP0_SUBTAB-OTHRE, sy-vline,
  WA_PSAP_HSAPOAP0_SUBTAB-OTHVA, sy-vline,
  WA_PSAP_HSAPOAP0_SUBTAB-AMT2A, sy-vline,
  WA_PSAP_HSAPOAP0_SUBTAB-AMT2B, sy-vline,
  WA_PSAP_HSAPOAP0_SUBTAB-AMT3A, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSAP_HSAPOAP0_SUBTAB 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_PSAP_HSAPOAP0_SUBTAB 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_PSAP_HSAPOAP0_SUBTAB INTO WA_PSAP_HSAPOAP0_SUBTAB.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PSAP_HSAPOAP0_SUBTAB_STR, 
FNAME TYPE STRING,
EEGRD TYPE STRING,
PERNR TYPE STRING,
AMT1A TYPE STRING,
AMT1B TYPE STRING,
PYPRD TYPE STRING,
OTHRE TYPE STRING,
OTHVA TYPE STRING,
AMT2A TYPE STRING,
AMT2B TYPE STRING,
AMT3A TYPE STRING,
AMT3B TYPE STRING,
AMT4A TYPE STRING,
AMT4B TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSAP_HSAPOAP0_SUBTAB_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_PSAP_HSAPOAP0_SUBTAB_STR-FNAME sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-EEGRD sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-PERNR sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-AMT1A sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-AMT1B sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-PYPRD sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-OTHRE sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-OTHVA sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-AMT2A sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-AMT2B sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-AMT3A sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-AMT3B sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-AMT4A sy-vline 
WA_PSAP_HSAPOAP0_SUBTAB_STR-AMT4B sy-vline      INTO ld_text SEPARATED BY SPACE.

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