ABAP Select data from SAP table HAP_S_SEL_CRITERIA 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_SEL_CRITERIA 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_SEL_CRITERIA. 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_SEL_CRITERIA 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_SEL_CRITERIA TYPE STANDARD TABLE OF HAP_S_SEL_CRITERIA,
      WA_HAP_S_SEL_CRITERIA TYPE HAP_S_SEL_CRITERIA,
      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_SEL_CRITERIA> TYPE HAP_S_SEL_CRITERIA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HAP_S_SEL_CRITERIA
*  INTO TABLE @DATA(IT_HAP_S_SEL_CRITERIA2).
*--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_SEL_CRITERIA INDEX 1 INTO DATA(WA_HAP_S_SEL_CRITERIA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HAP_S_SEL_CRITERIA>-SEL_FILTER = 1.
<HAP_S_SEL_CRITERIA>-ADD_ON_APPLICATION = 1.
<HAP_S_SEL_CRITERIA>-PLAN_VERSION = 1.
<HAP_S_SEL_CRITERIA>-T_TEMPLATES = 1.
<HAP_S_SEL_CRITERIA>-T_TMPL_DETAIL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HAP_S_SEL_CRITERIA-S_DATES, sy-vline,
  WA_HAP_S_SEL_CRITERIA-VALIDITY_FROM_DATE, sy-vline,
  WA_HAP_S_SEL_CRITERIA-VALIDITY_TO_DATE, sy-vline,
  WA_HAP_S_SEL_CRITERIA-EXECUTION_FROM_DATE, sy-vline,
  WA_HAP_S_SEL_CRITERIA-EXECUTION_TO_DATE, sy-vline,
  WA_HAP_S_SEL_CRITERIA-OBJSET_FROM_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HAP_S_SEL_CRITERIA 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_SEL_CRITERIA 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_SEL_CRITERIA INTO WA_HAP_S_SEL_CRITERIA.


*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_SEL_CRITERIA_STR, 
SEL_FILTER TYPE STRING,
ADD_ON_APPLICATION TYPE STRING,
PLAN_VERSION TYPE STRING,
T_TEMPLATES TYPE STRING,
T_TMPL_DETAIL TYPE STRING,
S_DATES TYPE STRING,
VALIDITY_FROM_DATE TYPE STRING,
VALIDITY_TO_DATE TYPE STRING,
EXECUTION_FROM_DATE TYPE STRING,
EXECUTION_TO_DATE TYPE STRING,
OBJSET_FROM_DATE TYPE STRING,
OBJSET_TO_DATE TYPE STRING,
REVIEW_FROM_DATE TYPE STRING,
REVIEW_TO_DATE TYPE STRING,
APPRAISAL_FROM_DATE TYPE STRING,
APPRAISAL_TO_DATE TYPE STRING,
T_APPRAISERS TYPE STRING,
S_AND_OR TYPE STRING,
APPER_AND_APPEE TYPE STRING,
APPER_OR_APPEE TYPE STRING,
PAPPER_AND_APPEE TYPE STRING,
PAPPER_OR_APPEE TYPE STRING,
AND_PART_APPERS TYPE STRING,
AND_OTHERS TYPE STRING,
AND_TMPL_DETAILS TYPE STRING,
T_APPRAISEES TYPE STRING,
T_PART_APPRAISERS TYPE STRING,
T_OTHERS TYPE STRING,
S_WITH_OR_WITHOUT TYPE STRING,
SEL_DISPLAY_EXISTING TYPE STRING,
SEL_DISPLAY_WITHOUT TYPE STRING,
S_STATUS TYPE STRING,
AP_STATUS_1 TYPE STRING,
AP_STATUS_2 TYPE STRING,
AP_STATUS_3 TYPE STRING,
AP_STATUS_4 TYPE STRING,
AP_STATUS_5 TYPE STRING,
AP_STATUS_6 TYPE STRING,
AP_STATUS_7 TYPE STRING,
AP_STATUS_8 TYPE STRING,
AP_STATUS_9 TYPE STRING,
T_STATUS_SUB TYPE STRING,
S_ALV_VARIANT TYPE STRING,
REPORT TYPE STRING,
HANDLE TYPE STRING,
LOG_GROUP TYPE STRING,
USERNAME TYPE STRING,
VARIANT TYPE STRING,
TEXT TYPE STRING,
DEPENDVARS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HAP_S_SEL_CRITERIA_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_SEL_CRITERIA_STR-SEL_FILTER sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-ADD_ON_APPLICATION sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-PLAN_VERSION sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-T_TEMPLATES sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-T_TMPL_DETAIL sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-S_DATES sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-VALIDITY_FROM_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-VALIDITY_TO_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-EXECUTION_FROM_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-EXECUTION_TO_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-OBJSET_FROM_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-OBJSET_TO_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-REVIEW_FROM_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-REVIEW_TO_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-APPRAISAL_FROM_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-APPRAISAL_TO_DATE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-T_APPRAISERS sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-S_AND_OR sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-APPER_AND_APPEE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-APPER_OR_APPEE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-PAPPER_AND_APPEE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-PAPPER_OR_APPEE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AND_PART_APPERS sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AND_OTHERS sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AND_TMPL_DETAILS sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-T_APPRAISEES sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-T_PART_APPRAISERS sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-T_OTHERS sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-S_WITH_OR_WITHOUT sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-SEL_DISPLAY_EXISTING sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-SEL_DISPLAY_WITHOUT sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-S_STATUS sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_1 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_2 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_3 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_4 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_5 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_6 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_7 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_8 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-AP_STATUS_9 sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-T_STATUS_SUB sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-S_ALV_VARIANT sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-REPORT sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-HANDLE sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-LOG_GROUP sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-USERNAME sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-VARIANT sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-TEXT sy-vline 
WA_HAP_S_SEL_CRITERIA_STR-DEPENDVARS sy-vline      INTO ld_text SEPARATED BY SPACE.

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