ABAP Select data from SAP table AWORKCENTER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AWORKCENTER
*  INTO TABLE @DATA(IT_AWORKCENTER2).
*--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_AWORKCENTER INDEX 1 INTO DATA(WA_AWORKCENTER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AWORKCENTER>-MANDT = 1.
<AWORKCENTER>-WORKCENTERINTERNALID = 1.
<AWORKCENTER>-WORKCENTERTYPECODE = 1.
<AWORKCENTER>-WORKCENTER = 1.
<AWORKCENTER>-WORKCENTERDESC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AWORKCENTER-PLANT, sy-vline,
  WA_AWORKCENTER-WORKCENTERCATEGORYCODE, sy-vline,
  WA_AWORKCENTER-WORKCENTERRESPONSIBLE, sy-vline,
  WA_AWORKCENTER-WORKCENTERRESPONSIBLENAME, sy-vline,
  WA_AWORKCENTER-SUPPLYAREA, sy-vline,
  WA_AWORKCENTER-WORKCENTERUSAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AWORKCENTER 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_AWORKCENTER 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_AWORKCENTER INTO WA_AWORKCENTER.


*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 CUNIT, internal->external for field WORKCENTERFMLAPARAMUNIT1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERFMLAPARAMUNIT2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERFMLAPARAMUNIT3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERFMLAPARAMUNIT4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERFMLAPARAMUNIT5
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERFMLAPARAMUNIT6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERFMLAPARAMUNIT6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERSTANDARDWORKQTYUNIT1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERSTANDARDWORKQTYUNIT2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERSTANDARDWORKQTYUNIT3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERSTANDARDWORKQTYUNIT4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERSTANDARDWORKQTYUNIT5
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field WORKCENTERSTANDARDWORKQTYUNIT6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AWORKCENTER-WORKCENTERSTANDARDWORKQTYUNIT6.
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_AWORKCENTER_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERDESC TYPE STRING,
PLANT TYPE STRING,
WORKCENTERCATEGORYCODE TYPE STRING,
WORKCENTERRESPONSIBLE TYPE STRING,
WORKCENTERRESPONSIBLENAME TYPE STRING,
SUPPLYAREA TYPE STRING,
WORKCENTERUSAGE TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
WORKCENTERISTOBEDELETED TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
WORKCENTERFORMULAPARAM1 TYPE STRING,
WORKCENTERFORMULAPARAM2 TYPE STRING,
WORKCENTERFORMULAPARAM3 TYPE STRING,
WORKCENTERFORMULAPARAM4 TYPE STRING,
WORKCENTERFORMULAPARAM5 TYPE STRING,
WORKCENTERFORMULAPARAM6 TYPE STRING,
WORKCENTERFMLAPARAMVALUE1 TYPE STRING,
WORKCENTERFMLAPARAMVALUE2 TYPE STRING,
WORKCENTERFMLAPARAMVALUE3 TYPE STRING,
WORKCENTERFMLAPARAMVALUE4 TYPE STRING,
WORKCENTERFMLAPARAMVALUE5 TYPE STRING,
WORKCENTERFMLAPARAMVALUE6 TYPE STRING,
WORKCENTERFMLAPARAMUNIT1 TYPE STRING,
WORKCENTERFMLAPARAMUNIT2 TYPE STRING,
WORKCENTERFMLAPARAMUNIT3 TYPE STRING,
WORKCENTERFMLAPARAMUNIT4 TYPE STRING,
WORKCENTERFMLAPARAMUNIT5 TYPE STRING,
WORKCENTERFMLAPARAMUNIT6 TYPE STRING,
STANDARDWORKFORMULAPARAMGROUP TYPE STRING,
WRKCTRSTDVALMAINTRULE1 TYPE STRING,
WRKCTRSTDVALMAINTRULE2 TYPE STRING,
WRKCTRSTDVALMAINTRULE3 TYPE STRING,
WRKCTRSTDVALMAINTRULE4 TYPE STRING,
WRKCTRSTDVALMAINTRULE5 TYPE STRING,
WRKCTRSTDVALMAINTRULE6 TYPE STRING,
WORKCENTERSTANDARDWORKQTYUNIT1 TYPE STRING,
WORKCENTERSTANDARDWORKQTYUNIT2 TYPE STRING,
WORKCENTERSTANDARDWORKQTYUNIT3 TYPE STRING,
WORKCENTERSTANDARDWORKQTYUNIT4 TYPE STRING,
WORKCENTERSTANDARDWORKQTYUNIT5 TYPE STRING,
WORKCENTERSTANDARDWORKQTYUNIT6 TYPE STRING,
OPERATIONCONTROLPROFILE TYPE STRING,
MATLCOMPISMARKEDFORBACKFLUSH TYPE STRING,
WORKCENTERLOCATION TYPE STRING,
WORKCENTERLOCATIONGROUP TYPE STRING,
WRKCTRSETUPSCHEDGFMLA TYPE STRING,
WRKCTRPROCGSCHEDGFMLA TYPE STRING,
WRKCTRTEARDOWNSCHEDGFMLA TYPE STRING,
WRKCTRINTPROCGSCHEDGFMLA TYPE STRING,
WORKCENTERLASTCHANGEDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AWORKCENTER_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_AWORKCENTER_STR-MANDT sy-vline 
WA_AWORKCENTER_STR-WORKCENTERINTERNALID sy-vline 
WA_AWORKCENTER_STR-WORKCENTERTYPECODE sy-vline 
WA_AWORKCENTER_STR-WORKCENTER sy-vline 
WA_AWORKCENTER_STR-WORKCENTERDESC sy-vline 
WA_AWORKCENTER_STR-PLANT sy-vline 
WA_AWORKCENTER_STR-WORKCENTERCATEGORYCODE sy-vline 
WA_AWORKCENTER_STR-WORKCENTERRESPONSIBLE sy-vline 
WA_AWORKCENTER_STR-WORKCENTERRESPONSIBLENAME sy-vline 
WA_AWORKCENTER_STR-SUPPLYAREA sy-vline 
WA_AWORKCENTER_STR-WORKCENTERUSAGE sy-vline 
WA_AWORKCENTER_STR-CAPACITYINTERNALID sy-vline 
WA_AWORKCENTER_STR-WORKCENTERISTOBEDELETED sy-vline 
WA_AWORKCENTER_STR-VALIDITYSTARTDATE sy-vline 
WA_AWORKCENTER_STR-VALIDITYENDDATE sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFORMULAPARAM1 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFORMULAPARAM2 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFORMULAPARAM3 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFORMULAPARAM4 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFORMULAPARAM5 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFORMULAPARAM6 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMVALUE1 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMVALUE2 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMVALUE3 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMVALUE4 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMVALUE5 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMVALUE6 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMUNIT1 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMUNIT2 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMUNIT3 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMUNIT4 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMUNIT5 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERFMLAPARAMUNIT6 sy-vline 
WA_AWORKCENTER_STR-STANDARDWORKFORMULAPARAMGROUP sy-vline 
WA_AWORKCENTER_STR-WRKCTRSTDVALMAINTRULE1 sy-vline 
WA_AWORKCENTER_STR-WRKCTRSTDVALMAINTRULE2 sy-vline 
WA_AWORKCENTER_STR-WRKCTRSTDVALMAINTRULE3 sy-vline 
WA_AWORKCENTER_STR-WRKCTRSTDVALMAINTRULE4 sy-vline 
WA_AWORKCENTER_STR-WRKCTRSTDVALMAINTRULE5 sy-vline 
WA_AWORKCENTER_STR-WRKCTRSTDVALMAINTRULE6 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERSTANDARDWORKQTYUNIT1 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERSTANDARDWORKQTYUNIT2 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERSTANDARDWORKQTYUNIT3 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERSTANDARDWORKQTYUNIT4 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERSTANDARDWORKQTYUNIT5 sy-vline 
WA_AWORKCENTER_STR-WORKCENTERSTANDARDWORKQTYUNIT6 sy-vline 
WA_AWORKCENTER_STR-OPERATIONCONTROLPROFILE sy-vline 
WA_AWORKCENTER_STR-MATLCOMPISMARKEDFORBACKFLUSH sy-vline 
WA_AWORKCENTER_STR-WORKCENTERLOCATION sy-vline 
WA_AWORKCENTER_STR-WORKCENTERLOCATIONGROUP sy-vline 
WA_AWORKCENTER_STR-WRKCTRSETUPSCHEDGFMLA sy-vline 
WA_AWORKCENTER_STR-WRKCTRPROCGSCHEDGFMLA sy-vline 
WA_AWORKCENTER_STR-WRKCTRTEARDOWNSCHEDGFMLA sy-vline 
WA_AWORKCENTER_STR-WRKCTRINTPROCGSCHEDGFMLA sy-vline 
WA_AWORKCENTER_STR-WORKCENTERLASTCHANGEDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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