ABAP Select data from SAP table BAPI_ES_TASK_MAINT_PRT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_ES_TASK_MAINT_PRT
*  INTO TABLE @DATA(IT_BAPI_ES_TASK_MAINT_PRT2).
*--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_BAPI_ES_TASK_MAINT_PRT INDEX 1 INTO DATA(WA_BAPI_ES_TASK_MAINT_PRT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_ES_TASK_MAINT_PRT>-MAINTAIN_MODE = 1.
<BAPI_ES_TASK_MAINT_PRT>-FLAG_BAR_POINTER = 1.
<BAPI_ES_TASK_MAINT_PRT>-SEQUENCE_NO = 1.
<BAPI_ES_TASK_MAINT_PRT>-ACTIVITY = 1.
<BAPI_ES_TASK_MAINT_PRT>-OPERATION_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_ES_TASK_MAINT_PRT-OBJECT_TYPE_CIM_RESOURCE, sy-vline,
  WA_BAPI_ES_TASK_MAINT_PRT-OBJECT_ID_CIM_RESOURCE, sy-vline,
  WA_BAPI_ES_TASK_MAINT_PRT-OBJECT_OF_TASK_LIST, sy-vline,
  WA_BAPI_ES_TASK_MAINT_PRT-ITEM_NO_OF_PROD_RESOURCE, sy-vline,
  WA_BAPI_ES_TASK_MAINT_PRT-ITEM_NO_OF_PROD_RESOURCE_OLD, sy-vline,
  WA_BAPI_ES_TASK_MAINT_PRT-CTRL_KEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_ES_TASK_MAINT_PRT 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_BAPI_ES_TASK_MAINT_PRT 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_BAPI_ES_TASK_MAINT_PRT INTO WA_BAPI_ES_TASK_MAINT_PRT.


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

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

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

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

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

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

*Conversion exit FHMAR, internal->external for field PRT_CATEGORY
CALL FUNCTION 'CONVERSION_EXIT_FHMAR_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_ES_TASK_MAINT_PRT-PRT_CATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_ES_TASK_MAINT_PRT-PRT_CATEGORY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN5, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_ES_TASK_MAINT_PRT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_ES_TASK_MAINT_PRT-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field MATERIAL_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_ES_TASK_MAINT_PRT-MATERIAL_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_ES_TASK_MAINT_PRT-MATERIAL_LONG.
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_BAPI_ES_TASK_MAINT_PRT_STR, 
MAINTAIN_MODE TYPE STRING,
FLAG_BAR_POINTER TYPE STRING,
SEQUENCE_NO TYPE STRING,
ACTIVITY TYPE STRING,
OPERATION_ID TYPE STRING,
OBJECT_TYPE_CIM_RESOURCE TYPE STRING,
OBJECT_ID_CIM_RESOURCE TYPE STRING,
OBJECT_OF_TASK_LIST TYPE STRING,
ITEM_NO_OF_PROD_RESOURCE TYPE STRING,
ITEM_NO_OF_PROD_RESOURCE_OLD TYPE STRING,
CTRL_KEY TYPE STRING,
CREATE_LOAD_RECS TYPE STRING,
START_REF_DATE TYPE STRING,
START_OFFSET TYPE STRING,
START_OFFSET_UNIT TYPE STRING,
START_OFFSET_UNIT_ISO TYPE STRING,
END_REF_DATE TYPE STRING,
END_OFFSET TYPE STRING,
END_OFFSET_UNIT TYPE STRING,
END_OFFSET_UNIT_ISO TYPE STRING,
PRT_MEASURE_UNIT TYPE STRING,
PRT_MEASURE_UNIT_ISO TYPE STRING,
STD_VALUE_FOR_PRT_QTY TYPE STRING,
FORMULA_TOT_QTY TYPE STRING,
PRT_USAGE_VALUE_UNIT TYPE STRING,
PRT_USAGE_VALUE_UNIT_ISO TYPE STRING,
STD_USAGE_VALUE_FOR_PRT TYPE STRING,
FORMULA_TOT_USAGE TYPE STRING,
STD_TEXT_KEY TYPE STRING,
DESCRIPTION TYPE STRING,
PRT_CATEGORY TYPE STRING,
PRT_NUMBER TYPE STRING,
PRT_PLANT TYPE STRING,
MATERIAL TYPE STRING,
MISCELLANEOUS TYPE STRING,
DOCUMENT_TYPE TYPE STRING,
DOCUMENT_NUMBER TYPE STRING,
DOCUMENT_PART TYPE STRING,
DOCUMENT_VERSION TYPE STRING,
EQUIPMENT TYPE STRING,
MATERIAL_LONG TYPE STRING,
PRT_NUMBER_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_ES_TASK_MAINT_PRT_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_BAPI_ES_TASK_MAINT_PRT_STR-MAINTAIN_MODE sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-FLAG_BAR_POINTER sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-SEQUENCE_NO sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-ACTIVITY sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-OPERATION_ID sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-OBJECT_TYPE_CIM_RESOURCE sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-OBJECT_ID_CIM_RESOURCE sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-OBJECT_OF_TASK_LIST sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-ITEM_NO_OF_PROD_RESOURCE sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-ITEM_NO_OF_PROD_RESOURCE_OLD sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-CTRL_KEY sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-CREATE_LOAD_RECS sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-START_REF_DATE sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-START_OFFSET sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-START_OFFSET_UNIT sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-START_OFFSET_UNIT_ISO sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-END_REF_DATE sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-END_OFFSET sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-END_OFFSET_UNIT sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-END_OFFSET_UNIT_ISO sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-PRT_MEASURE_UNIT sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-PRT_MEASURE_UNIT_ISO sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-STD_VALUE_FOR_PRT_QTY sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-FORMULA_TOT_QTY sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-PRT_USAGE_VALUE_UNIT sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-PRT_USAGE_VALUE_UNIT_ISO sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-STD_USAGE_VALUE_FOR_PRT sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-FORMULA_TOT_USAGE sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-STD_TEXT_KEY sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-DESCRIPTION sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-PRT_CATEGORY sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-PRT_NUMBER sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-PRT_PLANT sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-MATERIAL sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-MISCELLANEOUS sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-DOCUMENT_TYPE sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-DOCUMENT_NUMBER sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-DOCUMENT_PART sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-DOCUMENT_VERSION sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-EQUIPMENT sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-MATERIAL_LONG sy-vline 
WA_BAPI_ES_TASK_MAINT_PRT_STR-PRT_NUMBER_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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