ABAP Select data from SAP table EHPRCS_QUERY_SUB_ADVANCED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHPRCS_QUERY_SUB_ADVANCED
*  INTO TABLE @DATA(IT_EHPRCS_QUERY_SUB_ADVANCED2).
*--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_EHPRCS_QUERY_SUB_ADVANCED INDEX 1 INTO DATA(WA_EHPRCS_QUERY_SUB_ADVANCED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHPRCS_QUERY_SUB_ADVANCED>-SUBID = 1.
<EHPRCS_QUERY_SUB_ADVANCED>-ID_TYPE = 1.
<EHPRCS_QUERY_SUB_ADVANCED>-ID_VALUE = 1.
<EHPRCS_QUERY_SUB_ADVANCED>-LEAD_LE = 1.
<EHPRCS_QUERY_SUB_ADVANCED>-REGDEC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHPRCS_QUERY_SUB_ADVANCED-MAXTOBND, sy-vline,
  WA_EHPRCS_QUERY_SUB_ADVANCED-REG_DDLN, sy-vline,
  WA_EHPRCS_QUERY_SUB_ADVANCED-BUS_PRIO, sy-vline,
  WA_EHPRCS_QUERY_SUB_ADVANCED-EXEMPTY, sy-vline,
  WA_EHPRCS_QUERY_SUB_ADVANCED-SVHCTYPE, sy-vline,
  WA_EHPRCS_QUERY_SUB_ADVANCED-MATNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHPRCS_QUERY_SUB_ADVANCED 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_EHPRCS_QUERY_SUB_ADVANCED 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_EHPRCS_QUERY_SUB_ADVANCED INTO WA_EHPRCS_QUERY_SUB_ADVANCED.


*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 SPEC1, internal->external for field SUBID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_QUERY_SUB_ADVANCED-SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_QUERY_SUB_ADVANCED-SUBID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_QUERY_SUB_ADVANCED-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_QUERY_SUB_ADVANCED-MATNR.
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_EHPRCS_QUERY_SUB_ADVANCED_STR, 
SUBID TYPE STRING,
ID_TYPE TYPE STRING,
ID_VALUE TYPE STRING,
LEAD_LE TYPE STRING,
REGDEC TYPE STRING,
MAXTOBND TYPE STRING,
REG_DDLN TYPE STRING,
BUS_PRIO TYPE STRING,
EXEMPTY TYPE STRING,
SVHCTYPE TYPE STRING,
MATNR TYPE STRING,
AUTH_GRP TYPE STRING,
SUB_TYPE TYPE STRING,
PHASEIN TYPE STRING,
LEAD_ORG TYPE STRING,
ORGUNIT TYPE STRING,
LEGENT TYPE STRING,
PREGSTAT TYPE STRING,
REG_NO TYPE STRING,
REG_STAT TYPE STRING,
TOBAND TYPE STRING,
INT_DDLN TYPE STRING,
SUB_NAME TYPE STRING,
INT_TYPE TYPE STRING,
INT_CTRL TYPE STRING,
EEW_EHPRC_ADV_SEARCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHPRCS_QUERY_SUB_ADVANCED_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_EHPRCS_QUERY_SUB_ADVANCED_STR-SUBID sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-ID_TYPE sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-ID_VALUE sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-LEAD_LE sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-REGDEC sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-MAXTOBND sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-REG_DDLN sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-BUS_PRIO sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-EXEMPTY sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-SVHCTYPE sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-MATNR sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-AUTH_GRP sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-SUB_TYPE sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-PHASEIN sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-LEAD_ORG sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-ORGUNIT sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-LEGENT sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-PREGSTAT sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-REG_NO sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-REG_STAT sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-TOBAND sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-INT_DDLN sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-SUB_NAME sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-INT_TYPE sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-INT_CTRL sy-vline 
WA_EHPRCS_QUERY_SUB_ADVANCED_STR-EEW_EHPRC_ADV_SEARCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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