ABAP Select data from SAP table PEMPPROJECTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEMPPROJECTS
*  INTO TABLE @DATA(IT_PEMPPROJECTS2).
*--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_PEMPPROJECTS INDEX 1 INTO DATA(WA_PEMPPROJECTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PEMPPROJECTS>-MANDT = 1.
<PEMPPROJECTS>-PERSONNELNUMBER = 1.
<PEMPPROJECTS>-EMPLOYMENTINTERNALID = 1.
<PEMPPROJECTS>-CUSTOMERPROJECT = 1.
<PEMPPROJECTS>-PROJECTNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEMPPROJECTS-ROLE, sy-vline,
  WA_PEMPPROJECTS-ROLENAME, sy-vline,
  WA_PEMPPROJECTS-MANAGEREMPLOYEEEXTID, sy-vline,
  WA_PEMPPROJECTS-MANAGER, sy-vline,
  WA_PEMPPROJECTS-CUSTOMER, sy-vline,
  WA_PEMPPROJECTS-CUSTOMERID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PEMPPROJECTS 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_PEMPPROJECTS 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_PEMPPROJECTS INTO WA_PEMPPROJECTS.


*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 CUSTOMERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEMPPROJECTS-CUSTOMERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEMPPROJECTS-CUSTOMERID.
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_PEMPPROJECTS_STR, 
MANDT TYPE STRING,
PERSONNELNUMBER TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
CUSTOMERPROJECT TYPE STRING,
PROJECTNAME TYPE STRING,
ROLE TYPE STRING,
ROLENAME TYPE STRING,
MANAGEREMPLOYEEEXTID TYPE STRING,
MANAGER TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERID TYPE STRING,
ADDRESSID TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PEMPPROJECTS_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_PEMPPROJECTS_STR-MANDT sy-vline 
WA_PEMPPROJECTS_STR-PERSONNELNUMBER sy-vline 
WA_PEMPPROJECTS_STR-EMPLOYMENTINTERNALID sy-vline 
WA_PEMPPROJECTS_STR-CUSTOMERPROJECT sy-vline 
WA_PEMPPROJECTS_STR-PROJECTNAME sy-vline 
WA_PEMPPROJECTS_STR-ROLE sy-vline 
WA_PEMPPROJECTS_STR-ROLENAME sy-vline 
WA_PEMPPROJECTS_STR-MANAGEREMPLOYEEEXTID sy-vline 
WA_PEMPPROJECTS_STR-MANAGER sy-vline 
WA_PEMPPROJECTS_STR-CUSTOMER sy-vline 
WA_PEMPPROJECTS_STR-CUSTOMERID sy-vline 
WA_PEMPPROJECTS_STR-ADDRESSID sy-vline 
WA_PEMPPROJECTS_STR-AUTHORIZATIONGROUP sy-vline 
WA_PEMPPROJECTS_STR-ISBUSINESSPURPOSECOMPLETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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