ABAP Select data from SAP table T7EHS00_PROTAGNT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7EHS00_PROTAGNT 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 T7EHS00_PROTAGNT. 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 T7EHS00_PROTAGNT 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_T7EHS00_PROTAGNT TYPE STANDARD TABLE OF T7EHS00_PROTAGNT,
      WA_T7EHS00_PROTAGNT TYPE T7EHS00_PROTAGNT,
      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: <T7EHS00_PROTAGNT> TYPE T7EHS00_PROTAGNT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7EHS00_PROTAGNT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7EHS00_PROTAGNT
  INTO TABLE IT_T7EHS00_PROTAGNT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7EHS00_PROTAGNT
*  INTO TABLE @DATA(IT_T7EHS00_PROTAGNT2).
*--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_T7EHS00_PROTAGNT INDEX 1 INTO DATA(WA_T7EHS00_PROTAGNT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7EHS00_PROTAGNT ASSIGNING <T7EHS00_PROTAGNT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7EHS00_PROTAGNT>-MANDT = 1.
<T7EHS00_PROTAGNT>-PGROUP = 1.
<T7EHS00_PROTAGNT>-PNUMBER = 1.
<T7EHS00_PROTAGNT>-AGENT_ID = 1.
<T7EHS00_PROTAGNT>-ENDDA = 1.

ENDLOOP.

LOOP AT IT_T7EHS00_PROTAGNT INTO WA_T7EHS00_PROTAGNT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7EHS00_PROTAGNT-RECN, sy-vline,
  WA_T7EHS00_PROTAGNT-BEGDA, sy-vline,
  WA_T7EHS00_PROTAGNT-KTEXT, sy-vline,
  WA_T7EHS00_PROTAGNT-UNAME, sy-vline,
  WA_T7EHS00_PROTAGNT-AEDTM, sy-vline,
  WA_T7EHS00_PROTAGNT-STARDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7EHS00_PROTAGNT 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_T7EHS00_PROTAGNT 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_T7EHS00_PROTAGNT INTO WA_T7EHS00_PROTAGNT.


*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 RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7EHS00_PROTAGNT-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7EHS00_PROTAGNT-RECN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7EHS00_PROTAGNT-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7EHS00_PROTAGNT-AENNR.
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_T7EHS00_PROTAGNT_STR, 
MANDT TYPE STRING,
PGROUP TYPE STRING,
PNUMBER TYPE STRING,
AGENT_ID TYPE STRING,
ENDDA TYPE STRING,
RECN TYPE STRING,
BEGDA TYPE STRING,
KTEXT TYPE STRING,
UNAME TYPE STRING,
AEDTM TYPE STRING,
STARDA TYPE STRING,
STOPDA TYPE STRING,
AENNR TYPE STRING,
CRNAM TYPE STRING,
CRDTIMESTAMP TYPE STRING,
UPDNAM TYPE STRING,
UPDTIMESTAMP TYPE STRING,
AGE_FROM TYPE STRING,
AGE_TO TYPE STRING,
GENDER TYPE STRING,
LTA_TRIGGER TYPE STRING,
FREQ_FULL_RV_EX TYPE STRING,
FREQ_ACT_LEV_EX TYPE STRING,
ER_RAT_TRIG TYPE STRING,
ER_RAT_FREQ_TRIG TYPE STRING,
AND_LTA_TRIGGER TYPE STRING,
SKINEFFFREQ_TRIG TYPE STRING,
SKINEXPFREQ_TRIG TYPE STRING,
INGESTFREQ_TRIG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7EHS00_PROTAGNT_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_T7EHS00_PROTAGNT_STR-MANDT sy-vline 
WA_T7EHS00_PROTAGNT_STR-PGROUP sy-vline 
WA_T7EHS00_PROTAGNT_STR-PNUMBER sy-vline 
WA_T7EHS00_PROTAGNT_STR-AGENT_ID sy-vline 
WA_T7EHS00_PROTAGNT_STR-ENDDA sy-vline 
WA_T7EHS00_PROTAGNT_STR-RECN sy-vline 
WA_T7EHS00_PROTAGNT_STR-BEGDA sy-vline 
WA_T7EHS00_PROTAGNT_STR-KTEXT sy-vline 
WA_T7EHS00_PROTAGNT_STR-UNAME sy-vline 
WA_T7EHS00_PROTAGNT_STR-AEDTM sy-vline 
WA_T7EHS00_PROTAGNT_STR-STARDA sy-vline 
WA_T7EHS00_PROTAGNT_STR-STOPDA sy-vline 
WA_T7EHS00_PROTAGNT_STR-AENNR sy-vline 
WA_T7EHS00_PROTAGNT_STR-CRNAM sy-vline 
WA_T7EHS00_PROTAGNT_STR-CRDTIMESTAMP sy-vline 
WA_T7EHS00_PROTAGNT_STR-UPDNAM sy-vline 
WA_T7EHS00_PROTAGNT_STR-UPDTIMESTAMP sy-vline 
WA_T7EHS00_PROTAGNT_STR-AGE_FROM sy-vline 
WA_T7EHS00_PROTAGNT_STR-AGE_TO sy-vline 
WA_T7EHS00_PROTAGNT_STR-GENDER sy-vline 
WA_T7EHS00_PROTAGNT_STR-LTA_TRIGGER sy-vline 
WA_T7EHS00_PROTAGNT_STR-FREQ_FULL_RV_EX sy-vline 
WA_T7EHS00_PROTAGNT_STR-FREQ_ACT_LEV_EX sy-vline 
WA_T7EHS00_PROTAGNT_STR-ER_RAT_TRIG sy-vline 
WA_T7EHS00_PROTAGNT_STR-ER_RAT_FREQ_TRIG sy-vline 
WA_T7EHS00_PROTAGNT_STR-AND_LTA_TRIGGER sy-vline 
WA_T7EHS00_PROTAGNT_STR-SKINEFFFREQ_TRIG sy-vline 
WA_T7EHS00_PROTAGNT_STR-SKINEXPFREQ_TRIG sy-vline 
WA_T7EHS00_PROTAGNT_STR-INGESTFREQ_TRIG sy-vline      INTO ld_text SEPARATED BY SPACE.

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