ABAP Select data from SAP table HAP_S_WD_PMP_PARAMETERS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HAP_S_WD_PMP_PARAMETERS
*  INTO TABLE @DATA(IT_HAP_S_WD_PMP_PARAMETERS2).
*--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_HAP_S_WD_PMP_PARAMETERS INDEX 1 INTO DATA(WA_HAP_S_WD_PMP_PARAMETERS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HAP_S_WD_PMP_PARAMETERS>-ADD_ON_APPLICATION = 1.
<HAP_S_WD_PMP_PARAMETERS>-PLAN_VERSION = 1.
<HAP_S_WD_PMP_PARAMETERS>-TEMPLATE_ID = 1.
<HAP_S_WD_PMP_PARAMETERS>-S_APPRAISAL_ID = 1.
<HAP_S_WD_PMP_PARAMETERS>-APPRAISAL_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HAP_S_WD_PMP_PARAMETERS-PART_AP_ID, sy-vline,
  WA_HAP_S_WD_PMP_PARAMETERS-AP_START_DATE, sy-vline,
  WA_HAP_S_WD_PMP_PARAMETERS-AP_END_DATE, sy-vline,
  WA_HAP_S_WD_PMP_PARAMETERS-OBJECT_TYPE, sy-vline,
  WA_HAP_S_WD_PMP_PARAMETERS-S_HEADER_TEXTS, sy-vline,
  WA_HAP_S_WD_PMP_PARAMETERS-APPRAISAL_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HAP_S_WD_PMP_PARAMETERS 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_HAP_S_WD_PMP_PARAMETERS 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_HAP_S_WD_PMP_PARAMETERS INTO WA_HAP_S_WD_PMP_PARAMETERS.


*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_HAP_S_WD_PMP_PARAMETERS_STR, 
ADD_ON_APPLICATION TYPE STRING,
PLAN_VERSION TYPE STRING,
TEMPLATE_ID TYPE STRING,
S_APPRAISAL_ID TYPE STRING,
APPRAISAL_ID TYPE STRING,
PART_AP_ID TYPE STRING,
AP_START_DATE TYPE STRING,
AP_END_DATE TYPE STRING,
OBJECT_TYPE TYPE STRING,
S_HEADER_TEXTS TYPE STRING,
APPRAISAL_TXT TYPE STRING,
APPRAISAL_NAME TYPE STRING,
STATUS_TXT TYPE STRING,
APPER_TYPE_TXT TYPE STRING,
APPER_TYPE_TXT_M TYPE STRING,
APPEE_TYPE_TXT TYPE STRING,
APPEE_TYPE_TXT_M TYPE STRING,
P_APPER_TYPE_TXT TYPE STRING,
P_APPER_TYPE_M TYPE STRING,
OTHER_TYPE_TXT TYPE STRING,
VAL_PERIOD_TXT TYPE STRING,
EXE_PERIOD_TXT TYPE STRING,
OBJ_DATE_TXT TYPE STRING,
REV_DATE_TXT TYPE STRING,
APP_DATE_TXT TYPE STRING,
APPRAISEE_ID TYPE STRING,
APPRAISEE_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HAP_S_WD_PMP_PARAMETERS_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_HAP_S_WD_PMP_PARAMETERS_STR-ADD_ON_APPLICATION sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-PLAN_VERSION sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-TEMPLATE_ID sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-S_APPRAISAL_ID sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPRAISAL_ID sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-PART_AP_ID sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-AP_START_DATE sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-AP_END_DATE sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-OBJECT_TYPE sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-S_HEADER_TEXTS sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPRAISAL_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPRAISAL_NAME sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-STATUS_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPER_TYPE_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPER_TYPE_TXT_M sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPEE_TYPE_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPEE_TYPE_TXT_M sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-P_APPER_TYPE_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-P_APPER_TYPE_M sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-OTHER_TYPE_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-VAL_PERIOD_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-EXE_PERIOD_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-OBJ_DATE_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-REV_DATE_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APP_DATE_TXT sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPRAISEE_ID sy-vline 
WA_HAP_S_WD_PMP_PARAMETERS_STR-APPRAISEE_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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