ABAP Select data from SAP table ESHACTIVITYTYPEB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESHACTIVITYTYPEB
*  INTO TABLE @DATA(IT_ESHACTIVITYTYPEB2).
*--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_ESHACTIVITYTYPEB INDEX 1 INTO DATA(WA_ESHACTIVITYTYPEB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESHACTIVITYTYPEB>-MANDT = 1.
<ESHACTIVITYTYPEB>-CONTROLLINGAREA = 1.
<ESHACTIVITYTYPEB>-COSTCTRACTIVITYTYPE = 1.
<ESHACTIVITYTYPEB>-VALIDITYENDDATE = 1.
<ESHACTIVITYTYPEB>-VALIDITYSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPENAME, sy-vline,
  WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPEDESC, sy-vline,
  WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPEQTYUNIT, sy-vline,
  WA_ESHACTIVITYTYPEB-UNITOFMEASURENAME, sy-vline,
  WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPEVALIDCAT, sy-vline,
  WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPECATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESHACTIVITYTYPEB 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_ESHACTIVITYTYPEB 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_ESHACTIVITYTYPEB INTO WA_ESHACTIVITYTYPEB.


*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 COSTCTRACTIVITYTYPEQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPEQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPEQTYUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field COSTCTRACTIVITYTYPEOUTPQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPEOUTPQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESHACTIVITYTYPEB-COSTCTRACTIVITYTYPEOUTPQTYUNIT.
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_ESHACTIVITYTYPEB_STR, 
MANDT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCTRACTIVITYTYPE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
COSTCTRACTIVITYTYPENAME TYPE STRING,
COSTCTRACTIVITYTYPEDESC TYPE STRING,
COSTCTRACTIVITYTYPEQTYUNIT TYPE STRING,
UNITOFMEASURENAME TYPE STRING,
COSTCTRACTIVITYTYPEVALIDCAT TYPE STRING,
COSTCTRACTIVITYTYPECATEGORY TYPE STRING,
COSTCTRACTIVITYTYPECATNAME TYPE STRING,
ALLOCATIONCOSTELEMENT TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
CREATIONDATE TYPE STRING,
ENTEREDBYUSER TYPE STRING,
FULLNAME TYPE STRING,
PRICEALLOCATIONMETHOD TYPE STRING,
ACTUALPRICEALLOCATIONMETHOD TYPE STRING,
ACTIVITYTYPEISBLOCKED TYPE STRING,
ACTIVITYTYPEISBLOCKEDNAME TYPE STRING,
COSTCTRACTIVITYTYPEOUTPQTYUNIT TYPE STRING,
COSTCTRACTYTYPEOUTPQTYUNITNAME TYPE STRING,
OUTPUTQUANTITYFACTOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESHACTIVITYTYPEB_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_ESHACTIVITYTYPEB_STR-MANDT sy-vline 
WA_ESHACTIVITYTYPEB_STR-CONTROLLINGAREA sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTIVITYTYPE sy-vline 
WA_ESHACTIVITYTYPEB_STR-VALIDITYENDDATE sy-vline 
WA_ESHACTIVITYTYPEB_STR-VALIDITYSTARTDATE sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTIVITYTYPENAME sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTIVITYTYPEDESC sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTIVITYTYPEQTYUNIT sy-vline 
WA_ESHACTIVITYTYPEB_STR-UNITOFMEASURENAME sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTIVITYTYPEVALIDCAT sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTIVITYTYPECATEGORY sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTIVITYTYPECATNAME sy-vline 
WA_ESHACTIVITYTYPEB_STR-ALLOCATIONCOSTELEMENT sy-vline 
WA_ESHACTIVITYTYPEB_STR-CHARTOFACCOUNTS sy-vline 
WA_ESHACTIVITYTYPEB_STR-CREATIONDATE sy-vline 
WA_ESHACTIVITYTYPEB_STR-ENTEREDBYUSER sy-vline 
WA_ESHACTIVITYTYPEB_STR-FULLNAME sy-vline 
WA_ESHACTIVITYTYPEB_STR-PRICEALLOCATIONMETHOD sy-vline 
WA_ESHACTIVITYTYPEB_STR-ACTUALPRICEALLOCATIONMETHOD sy-vline 
WA_ESHACTIVITYTYPEB_STR-ACTIVITYTYPEISBLOCKED sy-vline 
WA_ESHACTIVITYTYPEB_STR-ACTIVITYTYPEISBLOCKEDNAME sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTIVITYTYPEOUTPQTYUNIT sy-vline 
WA_ESHACTIVITYTYPEB_STR-COSTCTRACTYTYPEOUTPQTYUNITNAME sy-vline 
WA_ESHACTIVITYTYPEB_STR-OUTPUTQUANTITYFACTOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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