ABAP Select data from SAP table P34_HIDCHCR0_TBL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P34_HIDCHCR0_TBL 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 P34_HIDCHCR0_TBL. 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 P34_HIDCHCR0_TBL 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_P34_HIDCHCR0_TBL TYPE STANDARD TABLE OF P34_HIDCHCR0_TBL,
      WA_P34_HIDCHCR0_TBL TYPE P34_HIDCHCR0_TBL,
      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: <P34_HIDCHCR0_TBL> TYPE P34_HIDCHCR0_TBL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P34_HIDCHCR0_TBL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P34_HIDCHCR0_TBL
  INTO TABLE IT_P34_HIDCHCR0_TBL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P34_HIDCHCR0_TBL
*  INTO TABLE @DATA(IT_P34_HIDCHCR0_TBL2).
*--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_P34_HIDCHCR0_TBL INDEX 1 INTO DATA(WA_P34_HIDCHCR0_TBL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P34_HIDCHCR0_TBL ASSIGNING <P34_HIDCHCR0_TBL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P34_HIDCHCR0_TBL>-SEQNO = 1.
<P34_HIDCHCR0_TBL>-PERNR = 1.
<P34_HIDCHCR0_TBL>-EENAM = 1.
<P34_HIDCHCR0_TBL>-BIRTH = 1.
<P34_HIDCHCR0_TBL>-GESCT = 1.

ENDLOOP.

LOOP AT IT_P34_HIDCHCR0_TBL INTO WA_P34_HIDCHCR0_TBL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P34_HIDCHCR0_TBL-ADFAM, sy-vline,
  WA_P34_HIDCHCR0_TBL-MSTAT, sy-vline,
  WA_P34_HIDCHCR0_TBL-BPJSI, sy-vline,
  WA_P34_HIDCHCR0_TBL-RELTY, sy-vline,
  WA_P34_HIDCHCR0_TBL-SALAR, sy-vline,
  WA_P34_HIDCHCR0_TBL-ALLOW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P34_HIDCHCR0_TBL 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_P34_HIDCHCR0_TBL 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_P34_HIDCHCR0_TBL INTO WA_P34_HIDCHCR0_TBL.


*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_P34_HIDCHCR0_TBL_STR, 
SEQNO TYPE STRING,
PERNR TYPE STRING,
EENAM TYPE STRING,
BIRTH TYPE STRING,
GESCT TYPE STRING,
ADFAM TYPE STRING,
MSTAT TYPE STRING,
BPJSI TYPE STRING,
RELTY TYPE STRING,
SALAR TYPE STRING,
ALLOW TYPE STRING,
TOTIN TYPE STRING,
BPJSB TYPE STRING,
EECON TYPE STRING,
ERCON TYPE STRING,
ADCON TYPE STRING,
TOCON TYPE STRING,
BENCL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P34_HIDCHCR0_TBL_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_P34_HIDCHCR0_TBL_STR-SEQNO sy-vline 
WA_P34_HIDCHCR0_TBL_STR-PERNR sy-vline 
WA_P34_HIDCHCR0_TBL_STR-EENAM sy-vline 
WA_P34_HIDCHCR0_TBL_STR-BIRTH sy-vline 
WA_P34_HIDCHCR0_TBL_STR-GESCT sy-vline 
WA_P34_HIDCHCR0_TBL_STR-ADFAM sy-vline 
WA_P34_HIDCHCR0_TBL_STR-MSTAT sy-vline 
WA_P34_HIDCHCR0_TBL_STR-BPJSI sy-vline 
WA_P34_HIDCHCR0_TBL_STR-RELTY sy-vline 
WA_P34_HIDCHCR0_TBL_STR-SALAR sy-vline 
WA_P34_HIDCHCR0_TBL_STR-ALLOW sy-vline 
WA_P34_HIDCHCR0_TBL_STR-TOTIN sy-vline 
WA_P34_HIDCHCR0_TBL_STR-BPJSB sy-vline 
WA_P34_HIDCHCR0_TBL_STR-EECON sy-vline 
WA_P34_HIDCHCR0_TBL_STR-ERCON sy-vline 
WA_P34_HIDCHCR0_TBL_STR-ADCON sy-vline 
WA_P34_HIDCHCR0_TBL_STR-TOCON sy-vline 
WA_P34_HIDCHCR0_TBL_STR-BENCL sy-vline      INTO ld_text SEPARATED BY SPACE.

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