ABAP Select data from SAP table EHPRCS_PCR_COMPCHK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EHPRCS_PCR_COMPCHK 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_PCR_COMPCHK. 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_PCR_COMPCHK 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_PCR_COMPCHK TYPE STANDARD TABLE OF EHPRCS_PCR_COMPCHK,
      WA_EHPRCS_PCR_COMPCHK TYPE EHPRCS_PCR_COMPCHK,
      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_PCR_COMPCHK> TYPE EHPRCS_PCR_COMPCHK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHPRCS_PCR_COMPCHK
*  INTO TABLE @DATA(IT_EHPRCS_PCR_COMPCHK2).
*--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_PCR_COMPCHK INDEX 1 INTO DATA(WA_EHPRCS_PCR_COMPCHK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHPRCS_PCR_COMPCHK>-KEY = 1.
<EHPRCS_PCR_COMPCHK>-PARENT_KEY = 1.
<EHPRCS_PCR_COMPCHK>-ROOT_KEY = 1.
<EHPRCS_PCR_COMPCHK>-DATETIME_CR = 1.
<EHPRCS_PCR_COMPCHK>-USER_ID_CR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHPRCS_PCR_COMPCHK-DATETIME_CH, sy-vline,
  WA_EHPRCS_PCR_COMPCHK-USER_ID_CH, sy-vline,
  WA_EHPRCS_PCR_COMPCHK-CRITID, sy-vline,
  WA_EHPRCS_PCR_COMPCHK-REGLIST, sy-vline,
  WA_EHPRCS_PCR_COMPCHK-CHKRESULT, sy-vline,
  WA_EHPRCS_PCR_COMPCHK-CHKDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHPRCS_PCR_COMPCHK 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_PCR_COMPCHK 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_PCR_COMPCHK INTO WA_EHPRCS_PCR_COMPCHK.


*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 TSTLC, internal->external for field DATETIME_CR
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_PCR_COMPCHK-DATETIME_CR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_PCR_COMPCHK-DATETIME_CR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field DATETIME_CH
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_PCR_COMPCHK-DATETIME_CH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_PCR_COMPCHK-DATETIME_CH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EHRGL, internal->external for field REGLIST
CALL FUNCTION 'CONVERSION_EXIT_EHRGL_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_PCR_COMPCHK-REGLIST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_PCR_COMPCHK-REGLIST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_PCR_COMPCHK-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_PCR_COMPCHK-RECN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_PCR_COMPCHK-ACTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_PCR_COMPCHK-ACTN.
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_PCR_COMPCHK_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
DATETIME_CR TYPE STRING,
USER_ID_CR TYPE STRING,
DATETIME_CH TYPE STRING,
USER_ID_CH TYPE STRING,
CRITID TYPE STRING,
REGLIST TYPE STRING,
CHKRESULT TYPE STRING,
CHKDATE TYPE STRING,
ORIGIN TYPE STRING,
OBJECT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
MSGTY TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
LOG_NO TYPE STRING,
LOG_MSG_NO TYPE STRING,
PROCESSED_IND TYPE STRING,
STARTED_IND TYPE STRING,
EEW_PCR_COMCHK_D TYPE STRING,
REMINDER_OFFSET TYPE STRING,
DUEDATE_OFFSET TYPE STRING,
EEW_PCR_COMCHK_DT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHPRCS_PCR_COMPCHK_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_PCR_COMPCHK_STR-KEY sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-PARENT_KEY sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-ROOT_KEY sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-DATETIME_CR sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-USER_ID_CR sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-DATETIME_CH sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-USER_ID_CH sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-CRITID sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-REGLIST sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-CHKRESULT sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-CHKDATE sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-ORIGIN sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-OBJECT sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-RECN sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-ACTN sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-MSGTY sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-MSGID sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-MSGNO sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-MSGV1 sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-MSGV2 sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-MSGV3 sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-MSGV4 sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-LOG_NO sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-LOG_MSG_NO sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-PROCESSED_IND sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-STARTED_IND sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-EEW_PCR_COMCHK_D sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-REMINDER_OFFSET sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-DUEDATE_OFFSET sy-vline 
WA_EHPRCS_PCR_COMPCHK_STR-EEW_PCR_COMCHK_DT sy-vline      INTO ld_text SEPARATED BY SPACE.

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