ABAP Select data from SAP table WLC_WORKING_AREA into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WLC_WORKING_AREA
*  INTO TABLE @DATA(IT_WLC_WORKING_AREA2).
*--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_WLC_WORKING_AREA INDEX 1 INTO DATA(WA_WLC_WORKING_AREA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WLC_WORKING_AREA>-REPORT = 1.
<WLC_WORKING_AREA>-VARIANT = 1.
<WLC_WORKING_AREA>-REPORT_PARALLEL = 1.
<WLC_WORKING_AREA>-PARALLEL_JOB_COUNT = 1.
<WLC_WORKING_AREA>-VARIANT_INFO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WLC_WORKING_AREA-DESCRIPTION, sy-vline,
  WA_WLC_WORKING_AREA-MANDT, sy-vline,
  WA_WLC_WORKING_AREA-REPORT, sy-vline,
  WA_WLC_WORKING_AREA-VARIANT, sy-vline,
  WA_WLC_WORKING_AREA-FLAG1, sy-vline,
  WA_WLC_WORKING_AREA-FLAG2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WLC_WORKING_AREA 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_WLC_WORKING_AREA 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_WLC_WORKING_AREA INTO WA_WLC_WORKING_AREA.


*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 ISOLA, internal->external for field MLANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_WLC_WORKING_AREA-MLANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLC_WORKING_AREA-MLANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_WLC_WORKING_AREA-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLC_WORKING_AREA-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field PDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_WLC_WORKING_AREA-PDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WLC_WORKING_AREA-PDEST.
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_WLC_WORKING_AREA_STR, 
REPORT TYPE STRING,
VARIANT TYPE STRING,
REPORT_PARALLEL TYPE STRING,
PARALLEL_JOB_COUNT TYPE STRING,
VARIANT_INFO TYPE STRING,
DESCRIPTION TYPE STRING,
MANDT TYPE STRING,
REPORT TYPE STRING,
VARIANT TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
TRANSPORT TYPE STRING,
ENVIRONMNT TYPE STRING,
PROTECTED TYPE STRING,
SECU TYPE STRING,
VERSION TYPE STRING,
ENAME TYPE STRING,
EDAT TYPE STRING,
ETIME TYPE STRING,
AENAME TYPE STRING,
AEDAT TYPE STRING,
AETIME TYPE STRING,
MLANGU TYPE STRING,
XFLAG1 TYPE STRING,
XFLAG2 TYPE STRING,
TEXT TYPE STRING,
MANDT TYPE STRING,
LANGU TYPE STRING,
REPORT TYPE STRING,
VARIANT TYPE STRING,
VTEXT TYPE STRING,
VALUES TYPE STRING,
INFO TYPE STRING,
SELOPT_TO_FILL TYPE STRING,
TABLE TYPE STRING,
FIELD TYPE STRING,
SELPAR TYPE STRING,
TABLE_REAL TYPE STRING,
FIELD_REAL TYPE STRING,
SELOPT_TO_SPLIT TYPE STRING,
TABLE TYPE STRING,
FIELD TYPE STRING,
SELPAR TYPE STRING,
TABLE_REAL TYPE STRING,
FIELD_REAL TYPE STRING,
CUST_OPTIONS TYPE STRING,
MANDT TYPE STRING,
REPORT_NAME TYPE STRING,
PRESEL_MODE TYPE STRING,
PRESEL_FM TYPE STRING,
PRESEL_PRIM_TAB TYPE STRING,
PRESEL_SEC_TAB TYPE STRING,
PRIM_TAB_WEIGHT TYPE STRING,
SEC_TAB_WEIGHT TYPE STRING,
WORKLOAD_MODE TYPE STRING,
REPORT_VARIANT TYPE STRING,
SELOPT_TO_FILL TYPE STRING,
SELOPT_FOR_PARAL TYPE STRING,
FIELD_FOR_PARAL TYPE STRING,
SHOW_HIDDEN_SOPT TYPE STRING,
MAX_JOB_COUNT TYPE STRING,
MAX_WORKLOAD TYPE STRING,
SERVER_GROUP TYPE STRING,
EVENT TYPE STRING,
PARALLEL_MODE TYPE STRING,
SELOPT_MAX_ENTRY TYPE STRING,
CUST_CRITS TYPE STRING,
ADD_CRITS TYPE STRING,
PRESEL_CRITS TYPE STRING,
GENERATED_FORMS TYPE STRING,
WORKLOAD TYPE STRING,
WORKLOAD_REMAINING TYPE STRING,
WORKLOAD_STAT TYPE STRING,
RECORD_COUNT TYPE STRING,
SUM TYPE STRING,
MINIMUM TYPE STRING,
MAXIMUM TYPE STRING,
AVERAGE TYPE STRING,
VARIANCE TYPE STRING,
STDDEVIATION TYPE STRING,
DONE TYPE STRING,
JOB_PROT TYPE STRING,
JOBS_DONE TYPE STRING,
JOB_COUNT TYPE STRING,
JOB_STATISTICS TYPE STRING,
FREE_JOBS TYPE STRING,
DEBUG_MODE TYPE STRING,
TEST_MODE TYPE STRING,
PRI_PARAMS_VALID TYPE STRING,
PRI_PARAMS TYPE STRING,
PDEST TYPE STRING,
PRCOP TYPE STRING,
PLIST TYPE STRING,
PRTXT TYPE STRING,
PRIMM TYPE STRING,
PRREL TYPE STRING,
PRNEW TYPE STRING,
PEXPI TYPE STRING,
LINCT TYPE STRING,
LINSZ TYPE STRING,
PAART TYPE STRING,
PRBIG TYPE STRING,
PRSAP TYPE STRING,
PRREC TYPE STRING,
PRABT TYPE STRING,
PRBER TYPE STRING,
PRDSN TYPE STRING,
PTYPE TYPE STRING,
ARMOD TYPE STRING,
FOOTL TYPE STRING,
PRIOT TYPE STRING,
PRUNX TYPE STRING,
PRKEYEXT TYPE STRING,
PRCHK TYPE STRING,
RFC_ERROR_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WLC_WORKING_AREA_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_WLC_WORKING_AREA_STR-REPORT sy-vline 
WA_WLC_WORKING_AREA_STR-VARIANT sy-vline 
WA_WLC_WORKING_AREA_STR-REPORT_PARALLEL sy-vline 
WA_WLC_WORKING_AREA_STR-PARALLEL_JOB_COUNT sy-vline 
WA_WLC_WORKING_AREA_STR-VARIANT_INFO sy-vline 
WA_WLC_WORKING_AREA_STR-DESCRIPTION sy-vline 
WA_WLC_WORKING_AREA_STR-MANDT sy-vline 
WA_WLC_WORKING_AREA_STR-REPORT sy-vline 
WA_WLC_WORKING_AREA_STR-VARIANT sy-vline 
WA_WLC_WORKING_AREA_STR-FLAG1 sy-vline 
WA_WLC_WORKING_AREA_STR-FLAG2 sy-vline 
WA_WLC_WORKING_AREA_STR-TRANSPORT sy-vline 
WA_WLC_WORKING_AREA_STR-ENVIRONMNT sy-vline 
WA_WLC_WORKING_AREA_STR-PROTECTED sy-vline 
WA_WLC_WORKING_AREA_STR-SECU sy-vline 
WA_WLC_WORKING_AREA_STR-VERSION sy-vline 
WA_WLC_WORKING_AREA_STR-ENAME sy-vline 
WA_WLC_WORKING_AREA_STR-EDAT sy-vline 
WA_WLC_WORKING_AREA_STR-ETIME sy-vline 
WA_WLC_WORKING_AREA_STR-AENAME sy-vline 
WA_WLC_WORKING_AREA_STR-AEDAT sy-vline 
WA_WLC_WORKING_AREA_STR-AETIME sy-vline 
WA_WLC_WORKING_AREA_STR-MLANGU sy-vline 
WA_WLC_WORKING_AREA_STR-XFLAG1 sy-vline 
WA_WLC_WORKING_AREA_STR-XFLAG2 sy-vline 
WA_WLC_WORKING_AREA_STR-TEXT sy-vline 
WA_WLC_WORKING_AREA_STR-MANDT sy-vline 
WA_WLC_WORKING_AREA_STR-LANGU sy-vline 
WA_WLC_WORKING_AREA_STR-REPORT sy-vline 
WA_WLC_WORKING_AREA_STR-VARIANT sy-vline 
WA_WLC_WORKING_AREA_STR-VTEXT sy-vline 
WA_WLC_WORKING_AREA_STR-VALUES sy-vline 
WA_WLC_WORKING_AREA_STR-INFO sy-vline 
WA_WLC_WORKING_AREA_STR-SELOPT_TO_FILL sy-vline 
WA_WLC_WORKING_AREA_STR-TABLE sy-vline 
WA_WLC_WORKING_AREA_STR-FIELD sy-vline 
WA_WLC_WORKING_AREA_STR-SELPAR sy-vline 
WA_WLC_WORKING_AREA_STR-TABLE_REAL sy-vline 
WA_WLC_WORKING_AREA_STR-FIELD_REAL sy-vline 
WA_WLC_WORKING_AREA_STR-SELOPT_TO_SPLIT sy-vline 
WA_WLC_WORKING_AREA_STR-TABLE sy-vline 
WA_WLC_WORKING_AREA_STR-FIELD sy-vline 
WA_WLC_WORKING_AREA_STR-SELPAR sy-vline 
WA_WLC_WORKING_AREA_STR-TABLE_REAL sy-vline 
WA_WLC_WORKING_AREA_STR-FIELD_REAL sy-vline 
WA_WLC_WORKING_AREA_STR-CUST_OPTIONS sy-vline 
WA_WLC_WORKING_AREA_STR-MANDT sy-vline 
WA_WLC_WORKING_AREA_STR-REPORT_NAME sy-vline 
WA_WLC_WORKING_AREA_STR-PRESEL_MODE sy-vline 
WA_WLC_WORKING_AREA_STR-PRESEL_FM sy-vline 
WA_WLC_WORKING_AREA_STR-PRESEL_PRIM_TAB sy-vline 
WA_WLC_WORKING_AREA_STR-PRESEL_SEC_TAB sy-vline 
WA_WLC_WORKING_AREA_STR-PRIM_TAB_WEIGHT sy-vline 
WA_WLC_WORKING_AREA_STR-SEC_TAB_WEIGHT sy-vline 
WA_WLC_WORKING_AREA_STR-WORKLOAD_MODE sy-vline 
WA_WLC_WORKING_AREA_STR-REPORT_VARIANT sy-vline 
WA_WLC_WORKING_AREA_STR-SELOPT_TO_FILL sy-vline 
WA_WLC_WORKING_AREA_STR-SELOPT_FOR_PARAL sy-vline 
WA_WLC_WORKING_AREA_STR-FIELD_FOR_PARAL sy-vline 
WA_WLC_WORKING_AREA_STR-SHOW_HIDDEN_SOPT sy-vline 
WA_WLC_WORKING_AREA_STR-MAX_JOB_COUNT sy-vline 
WA_WLC_WORKING_AREA_STR-MAX_WORKLOAD sy-vline 
WA_WLC_WORKING_AREA_STR-SERVER_GROUP sy-vline 
WA_WLC_WORKING_AREA_STR-EVENT sy-vline 
WA_WLC_WORKING_AREA_STR-PARALLEL_MODE sy-vline 
WA_WLC_WORKING_AREA_STR-SELOPT_MAX_ENTRY sy-vline 
WA_WLC_WORKING_AREA_STR-CUST_CRITS sy-vline 
WA_WLC_WORKING_AREA_STR-ADD_CRITS sy-vline 
WA_WLC_WORKING_AREA_STR-PRESEL_CRITS sy-vline 
WA_WLC_WORKING_AREA_STR-GENERATED_FORMS sy-vline 
WA_WLC_WORKING_AREA_STR-WORKLOAD sy-vline 
WA_WLC_WORKING_AREA_STR-WORKLOAD_REMAINING sy-vline 
WA_WLC_WORKING_AREA_STR-WORKLOAD_STAT sy-vline 
WA_WLC_WORKING_AREA_STR-RECORD_COUNT sy-vline 
WA_WLC_WORKING_AREA_STR-SUM sy-vline 
WA_WLC_WORKING_AREA_STR-MINIMUM sy-vline 
WA_WLC_WORKING_AREA_STR-MAXIMUM sy-vline 
WA_WLC_WORKING_AREA_STR-AVERAGE sy-vline 
WA_WLC_WORKING_AREA_STR-VARIANCE sy-vline 
WA_WLC_WORKING_AREA_STR-STDDEVIATION sy-vline 
WA_WLC_WORKING_AREA_STR-DONE sy-vline 
WA_WLC_WORKING_AREA_STR-JOB_PROT sy-vline 
WA_WLC_WORKING_AREA_STR-JOBS_DONE sy-vline 
WA_WLC_WORKING_AREA_STR-JOB_COUNT sy-vline 
WA_WLC_WORKING_AREA_STR-JOB_STATISTICS sy-vline 
WA_WLC_WORKING_AREA_STR-FREE_JOBS sy-vline 
WA_WLC_WORKING_AREA_STR-DEBUG_MODE sy-vline 
WA_WLC_WORKING_AREA_STR-TEST_MODE sy-vline 
WA_WLC_WORKING_AREA_STR-PRI_PARAMS_VALID sy-vline 
WA_WLC_WORKING_AREA_STR-PRI_PARAMS sy-vline 
WA_WLC_WORKING_AREA_STR-PDEST sy-vline 
WA_WLC_WORKING_AREA_STR-PRCOP sy-vline 
WA_WLC_WORKING_AREA_STR-PLIST sy-vline 
WA_WLC_WORKING_AREA_STR-PRTXT sy-vline 
WA_WLC_WORKING_AREA_STR-PRIMM sy-vline 
WA_WLC_WORKING_AREA_STR-PRREL sy-vline 
WA_WLC_WORKING_AREA_STR-PRNEW sy-vline 
WA_WLC_WORKING_AREA_STR-PEXPI sy-vline 
WA_WLC_WORKING_AREA_STR-LINCT sy-vline 
WA_WLC_WORKING_AREA_STR-LINSZ sy-vline 
WA_WLC_WORKING_AREA_STR-PAART sy-vline 
WA_WLC_WORKING_AREA_STR-PRBIG sy-vline 
WA_WLC_WORKING_AREA_STR-PRSAP sy-vline 
WA_WLC_WORKING_AREA_STR-PRREC sy-vline 
WA_WLC_WORKING_AREA_STR-PRABT sy-vline 
WA_WLC_WORKING_AREA_STR-PRBER sy-vline 
WA_WLC_WORKING_AREA_STR-PRDSN sy-vline 
WA_WLC_WORKING_AREA_STR-PTYPE sy-vline 
WA_WLC_WORKING_AREA_STR-ARMOD sy-vline 
WA_WLC_WORKING_AREA_STR-FOOTL sy-vline 
WA_WLC_WORKING_AREA_STR-PRIOT sy-vline 
WA_WLC_WORKING_AREA_STR-PRUNX sy-vline 
WA_WLC_WORKING_AREA_STR-PRKEYEXT sy-vline 
WA_WLC_WORKING_AREA_STR-PRCHK sy-vline 
WA_WLC_WORKING_AREA_STR-RFC_ERROR_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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