ABAP Select data from SAP table WFAEXV_AGT_AVAIL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFAEXV_AGT_AVAIL
*  INTO TABLE @DATA(IT_WFAEXV_AGT_AVAIL2).
*--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_WFAEXV_AGT_AVAIL INDEX 1 INTO DATA(WA_WFAEXV_AGT_AVAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFAEXV_AGT_AVAIL>-MANDT = 1.
<WFAEXV_AGT_AVAIL>-ORG_OBJID = 1.
<WFAEXV_AGT_AVAIL>-PARTNER = 1.
<WFAEXV_AGT_AVAIL>-START_DATE = 1.
<WFAEXV_AGT_AVAIL>-END_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFAEXV_AGT_AVAIL-BREAKRULE_LOC, sy-vline,
  WA_WFAEXV_AGT_AVAIL-BREAKRULESETID, sy-vline,
  WA_WFAEXV_AGT_AVAIL-AVAIL_ID, sy-vline,
  WA_WFAEXV_AGT_AVAIL-PREF_ID, sy-vline,
  WA_WFAEXV_AGT_AVAIL-SETSHIFTS_ID, sy-vline,
  WA_WFAEXV_AGT_AVAIL-AGT_ORG_GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFAEXV_AGT_AVAIL 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_WFAEXV_AGT_AVAIL 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_WFAEXV_AGT_AVAIL INTO WA_WFAEXV_AGT_AVAIL.


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

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

*Conversion exit ALPHA, internal->external for field BREAKRULESETID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WFAEXV_AGT_AVAIL-BREAKRULESETID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFAEXV_AGT_AVAIL-BREAKRULESETID.
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_WFAEXV_AGT_AVAIL_STR, 
MANDT TYPE STRING,
ORG_OBJID TYPE STRING,
PARTNER TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
BREAKRULE_LOC TYPE STRING,
BREAKRULESETID TYPE STRING,
AVAIL_ID TYPE STRING,
PREF_ID TYPE STRING,
SETSHIFTS_ID TYPE STRING,
AGT_ORG_GUID TYPE STRING,
TIMEMAPID TYPE STRING,
INTVINDEX TYPE STRING,
STARTTIMEDAY TYPE STRING,
ENDTIMEDAY TYPE STRING,
STARTTIME TYPE STRING,
ENDTIME TYPE STRING,
STARTOFFSETTYPE TYPE STRING,
STARTOFFSET TYPE STRING,
ENDOFFSETTYPE TYPE STRING,
ENDOFFSET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WFAEXV_AGT_AVAIL_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_WFAEXV_AGT_AVAIL_STR-MANDT sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-ORG_OBJID sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-PARTNER sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-START_DATE sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-END_DATE sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-BREAKRULE_LOC sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-BREAKRULESETID sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-AVAIL_ID sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-PREF_ID sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-SETSHIFTS_ID sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-AGT_ORG_GUID sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-TIMEMAPID sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-INTVINDEX sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-STARTTIMEDAY sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-ENDTIMEDAY sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-STARTTIME sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-ENDTIME sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-STARTOFFSETTYPE sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-STARTOFFSET sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-ENDOFFSETTYPE sy-vline 
WA_WFAEXV_AGT_AVAIL_STR-ENDOFFSET sy-vline      INTO ld_text SEPARATED BY SPACE.

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