ABAP Select data from SAP table THAS_HR_DOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM THAS_HR_DOC
*  INTO TABLE @DATA(IT_THAS_HR_DOC2).
*--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_THAS_HR_DOC INDEX 1 INTO DATA(WA_THAS_HR_DOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<THAS_HR_DOC>-MANDT = 1.
<THAS_HR_DOC>-BUKRS = 1.
<THAS_HR_DOC>-PLANNERID = 1.
<THAS_HR_DOC>-TEXT = 1.
<THAS_HR_DOC>-RISKCAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_THAS_HR_DOC-STARTTERM, sy-vline,
  WA_THAS_HR_DOC-ENDTERM, sy-vline,
  WA_THAS_HR_DOC-CRUSER, sy-vline,
  WA_THAS_HR_DOC-CDATE, sy-vline,
  WA_THAS_HR_DOC-UPUSER, sy-vline,
  WA_THAS_HR_DOC-UDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_THAS_HR_DOC 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_THAS_HR_DOC 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_THAS_HR_DOC INTO WA_THAS_HR_DOC.


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

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

*Conversion exit ALPHA, internal->external for field LOANS_CONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_THAS_HR_DOC-LOANS_CONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_THAS_HR_DOC-LOANS_CONTRACT.
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_THAS_HR_DOC_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
PLANNERID TYPE STRING,
TEXT TYPE STRING,
RISKCAT TYPE STRING,
STARTTERM TYPE STRING,
ENDTERM TYPE STRING,
CRUSER TYPE STRING,
CDATE TYPE STRING,
UPUSER TYPE STRING,
UDATE TYPE STRING,
TIME TYPE STRING,
LASTEXPOSUREID TYPE STRING,
SINGLEHEDGE TYPE STRING,
NOMINAL TYPE STRING,
CURRENCY TYPE STRING,
RFHA TYPE STRING,
RO_FLAG TYPE STRING,
LOANS_CONTRACT TYPE STRING,
PLAN_STATUS TYPE STRING,
HP_GROUP TYPE STRING,
HP_PROGRAM TYPE STRING,
COMPANYNAME TYPE STRING,
COMPANYCURR TYPE STRING,
XSTARTTERM TYPE STRING,
XENDTERM TYPE STRING,
XNOMINAL TYPE STRING,
PB_2200_NOTE TYPE STRING,
BUTXT TYPE STRING,
HEDGE_ID TYPE STRING,
VALUATION_AREA TYPE STRING,
VAL_AREA_NAME TYPE STRING,
HEDGE_CAT TYPE STRING,
HEDGECAT_TXT TYPE STRING,
TARGET_RATIO TYPE STRING,
ACTUAL_RATIO TYPE STRING,
VOL_DERIVATIVE TYPE STRING,
CURR_DERIVATIVE TYPE STRING,
HR_DATE TYPE STRING,
STRAT TYPE STRING,
STRAT_TXT TYPE STRING,
RISKCAT_TXT TYPE STRING,
STATUS TYPE STRING,
STATUS_CHANGE TYPE STRING,
S_DISP_HISTORY TYPE STRING,
EXPOSURES TYPE STRING,
TRANSACTIONS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_THAS_HR_DOC_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_THAS_HR_DOC_STR-MANDT sy-vline 
WA_THAS_HR_DOC_STR-BUKRS sy-vline 
WA_THAS_HR_DOC_STR-PLANNERID sy-vline 
WA_THAS_HR_DOC_STR-TEXT sy-vline 
WA_THAS_HR_DOC_STR-RISKCAT sy-vline 
WA_THAS_HR_DOC_STR-STARTTERM sy-vline 
WA_THAS_HR_DOC_STR-ENDTERM sy-vline 
WA_THAS_HR_DOC_STR-CRUSER sy-vline 
WA_THAS_HR_DOC_STR-CDATE sy-vline 
WA_THAS_HR_DOC_STR-UPUSER sy-vline 
WA_THAS_HR_DOC_STR-UDATE sy-vline 
WA_THAS_HR_DOC_STR-TIME sy-vline 
WA_THAS_HR_DOC_STR-LASTEXPOSUREID sy-vline 
WA_THAS_HR_DOC_STR-SINGLEHEDGE sy-vline 
WA_THAS_HR_DOC_STR-NOMINAL sy-vline 
WA_THAS_HR_DOC_STR-CURRENCY sy-vline 
WA_THAS_HR_DOC_STR-RFHA sy-vline 
WA_THAS_HR_DOC_STR-RO_FLAG sy-vline 
WA_THAS_HR_DOC_STR-LOANS_CONTRACT sy-vline 
WA_THAS_HR_DOC_STR-PLAN_STATUS sy-vline 
WA_THAS_HR_DOC_STR-HP_GROUP sy-vline 
WA_THAS_HR_DOC_STR-HP_PROGRAM sy-vline 
WA_THAS_HR_DOC_STR-COMPANYNAME sy-vline 
WA_THAS_HR_DOC_STR-COMPANYCURR sy-vline 
WA_THAS_HR_DOC_STR-XSTARTTERM sy-vline 
WA_THAS_HR_DOC_STR-XENDTERM sy-vline 
WA_THAS_HR_DOC_STR-XNOMINAL sy-vline 
WA_THAS_HR_DOC_STR-PB_2200_NOTE sy-vline 
WA_THAS_HR_DOC_STR-BUTXT sy-vline 
WA_THAS_HR_DOC_STR-HEDGE_ID sy-vline 
WA_THAS_HR_DOC_STR-VALUATION_AREA sy-vline 
WA_THAS_HR_DOC_STR-VAL_AREA_NAME sy-vline 
WA_THAS_HR_DOC_STR-HEDGE_CAT sy-vline 
WA_THAS_HR_DOC_STR-HEDGECAT_TXT sy-vline 
WA_THAS_HR_DOC_STR-TARGET_RATIO sy-vline 
WA_THAS_HR_DOC_STR-ACTUAL_RATIO sy-vline 
WA_THAS_HR_DOC_STR-VOL_DERIVATIVE sy-vline 
WA_THAS_HR_DOC_STR-CURR_DERIVATIVE sy-vline 
WA_THAS_HR_DOC_STR-HR_DATE sy-vline 
WA_THAS_HR_DOC_STR-STRAT sy-vline 
WA_THAS_HR_DOC_STR-STRAT_TXT sy-vline 
WA_THAS_HR_DOC_STR-RISKCAT_TXT sy-vline 
WA_THAS_HR_DOC_STR-STATUS sy-vline 
WA_THAS_HR_DOC_STR-STATUS_CHANGE sy-vline 
WA_THAS_HR_DOC_STR-S_DISP_HISTORY sy-vline 
WA_THAS_HR_DOC_STR-EXPOSURES sy-vline 
WA_THAS_HR_DOC_STR-TRANSACTIONS sy-vline      INTO ld_text SEPARATED BY SPACE.

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