ABAP Select data from SAP table ISMAINTTASKLISTOPERATIONTP_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISMAINTTASKLISTOPERATIONTP_D
*  INTO TABLE @DATA(IT_ISMAINTTASKLISTOPERATIONTP_D2).
*--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_ISMAINTTASKLISTOPERATIONTP_D INDEX 1 INTO DATA(WA_ISMAINTTASKLISTOPERATIONTP_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISMAINTTASKLISTOPERATIONTP_D>-TASKLISTTYPE = 1.
<ISMAINTTASKLISTOPERATIONTP_D>-TASKLISTGROUP = 1.
<ISMAINTTASKLISTOPERATIONTP_D>-TASKLISTGROUPCOUNTER = 1.
<ISMAINTTASKLISTOPERATIONTP_D>-TASKLISTSEQUENCE = 1.
<ISMAINTTASKLISTOPERATIONTP_D>-TASKLISTOPERATIONINTERNALID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISMAINTTASKLISTOPERATIONTP_D-MAINTENANCETASKLISTOPERATION, sy-vline,
  WA_ISMAINTTASKLISTOPERATIONTP_D-MAINTTASKLISTSUBOPERATION, sy-vline,
  WA_ISMAINTTASKLISTOPERATIONTP_D-OPERATIONTEXT, sy-vline,
  WA_ISMAINTTASKLISTOPERATIONTP_D-TECHNICALOBJECT, sy-vline,
  WA_ISMAINTTASKLISTOPERATIONTP_D-TECHOBJISEQUIPORFUNCNLLOC, sy-vline,
  WA_ISMAINTTASKLISTOPERATIONTP_D-OPERATIONCONTROLPROFILE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISMAINTTASKLISTOPERATIONTP_D 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_ISMAINTTASKLISTOPERATIONTP_D 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_ISMAINTTASKLISTOPERATIONTP_D INTO WA_ISMAINTTASKLISTOPERATIONTP_D.


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

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

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

*Conversion exit NUMCV, internal->external for field MAINTENANCETASKLISTOPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ISMAINTTASKLISTOPERATIONTP_D-MAINTENANCETASKLISTOPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISMAINTTASKLISTOPERATIONTP_D-MAINTENANCETASKLISTOPERATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field MAINTTASKLISTSUBOPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ISMAINTTASKLISTOPERATIONTP_D-MAINTTASKLISTSUBOPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISMAINTTASKLISTOPERATIONTP_D-MAINTTASKLISTSUBOPERATION.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field ASSEMBLY
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISMAINTTASKLISTOPERATIONTP_D-ASSEMBLY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISMAINTTASKLISTOPERATIONTP_D-ASSEMBLY.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field FUNCTIONALLOCATION
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ISMAINTTASKLISTOPERATIONTP_D-FUNCTIONALLOCATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISMAINTTASKLISTOPERATIONTP_D-FUNCTIONALLOCATION.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BILLOFOPERATIONSGROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISMAINTTASKLISTOPERATIONTP_D-BILLOFOPERATIONSGROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISMAINTTASKLISTOPERATIONTP_D-BILLOFOPERATIONSGROUP.
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_ISMAINTTASKLISTOPERATIONTP_D_STR, 
TASKLISTTYPE TYPE STRING,
TASKLISTGROUP TYPE STRING,
TASKLISTGROUPCOUNTER TYPE STRING,
TASKLISTSEQUENCE TYPE STRING,
TASKLISTOPERATIONINTERNALID TYPE STRING,
MAINTENANCETASKLISTOPERATION TYPE STRING,
MAINTTASKLISTSUBOPERATION TYPE STRING,
OPERATIONTEXT TYPE STRING,
TECHNICALOBJECT TYPE STRING,
TECHOBJISEQUIPORFUNCNLLOC TYPE STRING,
OPERATIONCONTROLPROFILE TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
PLANT TYPE STRING,
OPPLANNEDWORKQUANTITY TYPE STRING,
OPWORKQUANTITYUNIT TYPE STRING,
CHANGENUMBER TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
OPERATIONSTANDARDTEXTCODE TYPE STRING,
PURCHASINGINFORECDADDLGRPGNAME TYPE STRING,
OPEXTERNALPROCESSINGPRICE TYPE STRING,
OPEXTERNALPROCESSINGCURRENCY TYPE STRING,
NUMBEROFOPERATIONPRICEUNITS TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
PURCHASINGINFORECORDCATEGORY TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
OPERATIONSTANDARDDURATION TYPE STRING,
OPERATIONSTANDARDDURATIONUNIT TYPE STRING,
NUMBEROFCAPACITIES TYPE STRING,
OPERATIONSYSTEMCONDITION TYPE STRING,
COSTCTRACTIVITYTYPE TYPE STRING,
OPERATIONCALCULATIONCONTROL TYPE STRING,
ASSEMBLY TYPE STRING,
PURCHASEORDERQTY TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
FUNCTIONALLOCATION TYPE STRING,
EQUIPMENT TYPE STRING,
ISDELETED TYPE STRING,
ISIMPLICITLYDELETED TYPE STRING,
TASKLISTOPERATIONOBJECTKEY TYPE STRING,
MAINTOPERATIONEXECSTAGECODE TYPE STRING,
BILLOFOPERATIONSGROUP TYPE STRING,
BILLOFOPERATIONSTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISMAINTTASKLISTOPERATIONTP_D_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_ISMAINTTASKLISTOPERATIONTP_D_STR-TASKLISTTYPE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-TASKLISTGROUP sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-TASKLISTGROUPCOUNTER sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-TASKLISTSEQUENCE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-TASKLISTOPERATIONINTERNALID sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-MAINTENANCETASKLISTOPERATION sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-MAINTTASKLISTSUBOPERATION sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPERATIONTEXT sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-TECHNICALOBJECT sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-TECHOBJISEQUIPORFUNCNLLOC sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPERATIONCONTROLPROFILE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-WORKCENTERINTERNALID sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-WORKCENTERTYPECODE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PLANT sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPPLANNEDWORKQUANTITY sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPWORKQUANTITYUNIT sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-CHANGENUMBER sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-VALIDITYSTARTDATE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-VALIDITYENDDATE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPERATIONSTANDARDTEXTCODE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PURCHASINGINFORECDADDLGRPGNAME sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPEXTERNALPROCESSINGPRICE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPEXTERNALPROCESSINGCURRENCY sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-NUMBEROFOPERATIONPRICEUNITS sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PURCHASINGINFORECORD sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PURCHASINGINFORECORDCATEGORY sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PURCHASINGORGANIZATION sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-SUPPLIER sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PURCHASECONTRACT sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PURCHASECONTRACTITEM sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPERATIONSTANDARDDURATION sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPERATIONSTANDARDDURATIONUNIT sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-NUMBEROFCAPACITIES sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPERATIONSYSTEMCONDITION sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-COSTCTRACTIVITYTYPE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-OPERATIONCALCULATIONCONTROL sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-ASSEMBLY sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PURCHASEORDERQTY sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-FUNCTIONALLOCATION sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-EQUIPMENT sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-ISDELETED sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-ISIMPLICITLYDELETED sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-TASKLISTOPERATIONOBJECTKEY sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-MAINTOPERATIONEXECSTAGECODE sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-BILLOFOPERATIONSGROUP sy-vline 
WA_ISMAINTTASKLISTOPERATIONTP_D_STR-BILLOFOPERATIONSTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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