ABAP Select data from SAP table T7UNPF_HR_SECON into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7UNPF_HR_SECON 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 T7UNPF_HR_SECON. 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 T7UNPF_HR_SECON 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_T7UNPF_HR_SECON TYPE STANDARD TABLE OF T7UNPF_HR_SECON,
      WA_T7UNPF_HR_SECON TYPE T7UNPF_HR_SECON,
      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: <T7UNPF_HR_SECON> TYPE T7UNPF_HR_SECON.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7UNPF_HR_SECON.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7UNPF_HR_SECON
  INTO TABLE IT_T7UNPF_HR_SECON.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7UNPF_HR_SECON
*  INTO TABLE @DATA(IT_T7UNPF_HR_SECON2).
*--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_T7UNPF_HR_SECON INDEX 1 INTO DATA(WA_T7UNPF_HR_SECON2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7UNPF_HR_SECON ASSIGNING <T7UNPF_HR_SECON>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7UNPF_HR_SECON>-MANDT = 1.
<T7UNPF_HR_SECON>-PERNR = 1.
<T7UNPF_HR_SECON>-SEQNR = 1.
<T7UNPF_HR_SECON>-UNIQUE_ID = 1.
<T7UNPF_HR_SECON>-OPRHD = 1.

ENDLOOP.

LOOP AT IT_T7UNPF_HR_SECON INTO WA_T7UNPF_HR_SECON.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7UNPF_HR_SECON-BEGDA, sy-vline,
  WA_T7UNPF_HR_SECON-ENDDA, sy-vline,
  WA_T7UNPF_HR_SECON-IO_INDICATOR, sy-vline,
  WA_T7UNPF_HR_SECON-CONTRIB_ORG, sy-vline,
  WA_T7UNPF_HR_SECON-LASTUPDATED, sy-vline,
  WA_T7UNPF_HR_SECON-CRNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7UNPF_HR_SECON 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_T7UNPF_HR_SECON 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_T7UNPF_HR_SECON INTO WA_T7UNPF_HR_SECON.


*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_T7UNPF_HR_SECON_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
SEQNR TYPE STRING,
UNIQUE_ID TYPE STRING,
OPRHD TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
IO_INDICATOR TYPE STRING,
CONTRIB_ORG TYPE STRING,
LASTUPDATED TYPE STRING,
CRNAM TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
OPERATION TYPE STRING,
STATUS TYPE STRING,
EXEC_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7UNPF_HR_SECON_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_T7UNPF_HR_SECON_STR-MANDT sy-vline 
WA_T7UNPF_HR_SECON_STR-PERNR sy-vline 
WA_T7UNPF_HR_SECON_STR-SEQNR sy-vline 
WA_T7UNPF_HR_SECON_STR-UNIQUE_ID sy-vline 
WA_T7UNPF_HR_SECON_STR-OPRHD sy-vline 
WA_T7UNPF_HR_SECON_STR-BEGDA sy-vline 
WA_T7UNPF_HR_SECON_STR-ENDDA sy-vline 
WA_T7UNPF_HR_SECON_STR-IO_INDICATOR sy-vline 
WA_T7UNPF_HR_SECON_STR-CONTRIB_ORG sy-vline 
WA_T7UNPF_HR_SECON_STR-LASTUPDATED sy-vline 
WA_T7UNPF_HR_SECON_STR-CRNAM sy-vline 
WA_T7UNPF_HR_SECON_STR-CRDAT sy-vline 
WA_T7UNPF_HR_SECON_STR-CRTIM sy-vline 
WA_T7UNPF_HR_SECON_STR-AENAM sy-vline 
WA_T7UNPF_HR_SECON_STR-AEDAT sy-vline 
WA_T7UNPF_HR_SECON_STR-AETIM sy-vline 
WA_T7UNPF_HR_SECON_STR-OPERATION sy-vline 
WA_T7UNPF_HR_SECON_STR-STATUS sy-vline 
WA_T7UNPF_HR_SECON_STR-EXEC_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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