ABAP Select data from SAP table WFA_TS_AGT_WRKAR_EXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFA_TS_AGT_WRKAR_EXT
*  INTO TABLE @DATA(IT_WFA_TS_AGT_WRKAR_EXT2).
*--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_WFA_TS_AGT_WRKAR_EXT INDEX 1 INTO DATA(WA_WFA_TS_AGT_WRKAR_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFA_TS_AGT_WRKAR_EXT>-PARTNER = 1.
<WFA_TS_AGT_WRKAR_EXT>-WRKAREA_ID = 1.
<WFA_TS_AGT_WRKAR_EXT>-START_DATE = 1.
<WFA_TS_AGT_WRKAR_EXT>-LOCATION_TYPE = 1.
<WFA_TS_AGT_WRKAR_EXT>-ORG_PLVAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFA_TS_AGT_WRKAR_EXT-ORG_OTYPE, sy-vline,
  WA_WFA_TS_AGT_WRKAR_EXT-ORG_OBJID, sy-vline,
  WA_WFA_TS_AGT_WRKAR_EXT-END_DATE, sy-vline,
  WA_WFA_TS_AGT_WRKAR_EXT-TEMP_FLAG, sy-vline,
  WA_WFA_TS_AGT_WRKAR_EXT-AGT_WRKAR_GUID, sy-vline,
  WA_WFA_TS_AGT_WRKAR_EXT-MIN_TIME_IN_WRKA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFA_TS_AGT_WRKAR_EXT 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_WFA_TS_AGT_WRKAR_EXT 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_WFA_TS_AGT_WRKAR_EXT INTO WA_WFA_TS_AGT_WRKAR_EXT.


*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_WFA_TS_AGT_WRKAR_EXT-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFA_TS_AGT_WRKAR_EXT-PARTNER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TMPST, internal->external for field CREATED_AT
CALL FUNCTION 'CONVERSION_EXIT_TMPST_OUTPUT'
  EXPORTING
    input =                      WA_WFA_TS_AGT_WRKAR_EXT-CREATED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFA_TS_AGT_WRKAR_EXT-CREATED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TMPST, internal->external for field CHANGED_AT
CALL FUNCTION 'CONVERSION_EXIT_TMPST_OUTPUT'
  EXPORTING
    input =                      WA_WFA_TS_AGT_WRKAR_EXT-CHANGED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFA_TS_AGT_WRKAR_EXT-CHANGED_AT.
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_WFA_TS_AGT_WRKAR_EXT_STR, 
PARTNER TYPE STRING,
WRKAREA_ID TYPE STRING,
START_DATE TYPE STRING,
LOCATION_TYPE TYPE STRING,
ORG_PLVAR TYPE STRING,
ORG_OTYPE TYPE STRING,
ORG_OBJID TYPE STRING,
END_DATE TYPE STRING,
TEMP_FLAG TYPE STRING,
AGT_WRKAR_GUID TYPE STRING,
MIN_TIME_IN_WRKA TYPE STRING,
MAX_TIME_IN_WRKA TYPE STRING,
CAN_SPLIT TYPE STRING,
CAN_TRANSITION TYPE STRING,
RANK TYPE STRING,
SKILL_LEVEL TYPE STRING,
PAY_RATE TYPE STRING,
CURR_KEY TYPE STRING,
ALLOW_MULT_SHIFT TYPE STRING,
SHARED_FLAG TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_AT TYPE STRING,
WFA_AGT_WRKAR_DUMMY TYPE STRING,
WRKAREA_CODE TYPE STRING,
SNAME TYPE STRING,
LNAME TYPE STRING,
EFFECTIVE_DATE TYPE STRING,
OVERWRITE_TEMPORARY TYPE STRING,
WFA_AGT_WRKAR_TR_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WFA_TS_AGT_WRKAR_EXT_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_WFA_TS_AGT_WRKAR_EXT_STR-PARTNER sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-WRKAREA_ID sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-START_DATE sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-LOCATION_TYPE sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-ORG_PLVAR sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-ORG_OTYPE sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-ORG_OBJID sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-END_DATE sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-TEMP_FLAG sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-AGT_WRKAR_GUID sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-MIN_TIME_IN_WRKA sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-MAX_TIME_IN_WRKA sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-CAN_SPLIT sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-CAN_TRANSITION sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-RANK sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-SKILL_LEVEL sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-PAY_RATE sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-CURR_KEY sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-ALLOW_MULT_SHIFT sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-SHARED_FLAG sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-CREATED_BY sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-CREATED_AT sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-CHANGED_BY sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-CHANGED_AT sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-WFA_AGT_WRKAR_DUMMY sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-WRKAREA_CODE sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-SNAME sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-LNAME sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-EFFECTIVE_DATE sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-OVERWRITE_TEMPORARY sy-vline 
WA_WFA_TS_AGT_WRKAR_EXT_STR-WFA_AGT_WRKAR_TR_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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