ABAP Select data from SAP table CEPWRKPRFMNCEQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEPWRKPRFMNCEQ
*  INTO TABLE @DATA(IT_CEPWRKPRFMNCEQ2).
*--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_CEPWRKPRFMNCEQ INDEX 1 INTO DATA(WA_CEPWRKPRFMNCEQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEPWRKPRFMNCEQ>-MANDT = 1.
<CEPWRKPRFMNCEQ>-ENGAGEMENTPROJECT = 1.
<CEPWRKPRFMNCEQ>-ENGAGEMENTPROJECTNAME = 1.
<CEPWRKPRFMNCEQ>-WORKPACKAGE = 1.
<CEPWRKPRFMNCEQ>-WORKPACKAGENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEPWRKPRFMNCEQ-ENGAGEMENTPROJECTRESOURCE, sy-vline,
  WA_CEPWRKPRFMNCEQ-ENGAGEMENTPROJRESOURCETEXT, sy-vline,
  WA_CEPWRKPRFMNCEQ-WORKITEM, sy-vline,
  WA_CEPWRKPRFMNCEQ-WORKITEMNAME, sy-vline,
  WA_CEPWRKPRFMNCEQ-FISCALPERIOD, sy-vline,
  WA_CEPWRKPRFMNCEQ-FISCALYEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEPWRKPRFMNCEQ 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_CEPWRKPRFMNCEQ 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_CEPWRKPRFMNCEQ INTO WA_CEPWRKPRFMNCEQ.


*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 GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CEPWRKPRFMNCEQ-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPWRKPRFMNCEQ-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CEPWRKPRFMNCEQ-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPWRKPRFMNCEQ-UNITOFMEASURE.
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_CEPWRKPRFMNCEQ_STR, 
MANDT TYPE STRING,
ENGAGEMENTPROJECT TYPE STRING,
ENGAGEMENTPROJECTNAME TYPE STRING,
WORKPACKAGE TYPE STRING,
WORKPACKAGENAME TYPE STRING,
ENGAGEMENTPROJECTRESOURCE TYPE STRING,
ENGAGEMENTPROJRESOURCETEXT TYPE STRING,
WORKITEM TYPE STRING,
WORKITEMNAME TYPE STRING,
FISCALPERIOD TYPE STRING,
FISCALYEAR TYPE STRING,
FISCALYEARPERIOD TYPE STRING,
UNITOFMEASURE TYPE STRING,
ACTLEFFORTQTY TYPE STRING,
PLNDEFFORTQTY TYPE STRING,
QUANTITYVARIANCEINORDUNIT TYPE STRING,
QUANTITYVARIANCEINPCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEPWRKPRFMNCEQ_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_CEPWRKPRFMNCEQ_STR-MANDT sy-vline 
WA_CEPWRKPRFMNCEQ_STR-ENGAGEMENTPROJECT sy-vline 
WA_CEPWRKPRFMNCEQ_STR-ENGAGEMENTPROJECTNAME sy-vline 
WA_CEPWRKPRFMNCEQ_STR-WORKPACKAGE sy-vline 
WA_CEPWRKPRFMNCEQ_STR-WORKPACKAGENAME sy-vline 
WA_CEPWRKPRFMNCEQ_STR-ENGAGEMENTPROJECTRESOURCE sy-vline 
WA_CEPWRKPRFMNCEQ_STR-ENGAGEMENTPROJRESOURCETEXT sy-vline 
WA_CEPWRKPRFMNCEQ_STR-WORKITEM sy-vline 
WA_CEPWRKPRFMNCEQ_STR-WORKITEMNAME sy-vline 
WA_CEPWRKPRFMNCEQ_STR-FISCALPERIOD sy-vline 
WA_CEPWRKPRFMNCEQ_STR-FISCALYEAR sy-vline 
WA_CEPWRKPRFMNCEQ_STR-FISCALYEARPERIOD sy-vline 
WA_CEPWRKPRFMNCEQ_STR-UNITOFMEASURE sy-vline 
WA_CEPWRKPRFMNCEQ_STR-ACTLEFFORTQTY sy-vline 
WA_CEPWRKPRFMNCEQ_STR-PLNDEFFORTQTY sy-vline 
WA_CEPWRKPRFMNCEQ_STR-QUANTITYVARIANCEINORDUNIT sy-vline 
WA_CEPWRKPRFMNCEQ_STR-QUANTITYVARIANCEINPCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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