ABAP Select data from SAP table PKW_EMPLOYEE_CONTRACT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKW_EMPLOYEE_CONTRACT
*  INTO TABLE @DATA(IT_PKW_EMPLOYEE_CONTRACT2).
*--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_PKW_EMPLOYEE_CONTRACT INDEX 1 INTO DATA(WA_PKW_EMPLOYEE_CONTRACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PKW_EMPLOYEE_CONTRACT>-TDATE = 1.
<PKW_EMPLOYEE_CONTRACT>-LDEPT = 1.
<PKW_EMPLOYEE_CONTRACT>-CNAME = 1.
<PKW_EMPLOYEE_CONTRACT>-ATHUP = 1.
<PKW_EMPLOYEE_CONTRACT>-ADRL1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKW_EMPLOYEE_CONTRACT-ADRL2, sy-vline,
  WA_PKW_EMPLOYEE_CONTRACT-ENAME, sy-vline,
  WA_PKW_EMPLOYEE_CONTRACT-ENATI, sy-vline,
  WA_PKW_EMPLOYEE_CONTRACT-PNUMR, sy-vline,
  WA_PKW_EMPLOYEE_CONTRACT-PROFS, sy-vline,
  WA_PKW_EMPLOYEE_CONTRACT-SALAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKW_EMPLOYEE_CONTRACT 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_PKW_EMPLOYEE_CONTRACT 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_PKW_EMPLOYEE_CONTRACT INTO WA_PKW_EMPLOYEE_CONTRACT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PKW_EMPLOYEE_CONTRACT_STR, 
TDATE TYPE STRING,
LDEPT TYPE STRING,
CNAME TYPE STRING,
ATHUP TYPE STRING,
ADRL1 TYPE STRING,
ADRL2 TYPE STRING,
ENAME TYPE STRING,
ENATI TYPE STRING,
PNUMR TYPE STRING,
PROFS TYPE STRING,
SALAR TYPE STRING,
CONFR TYPE STRING,
CONTO TYPE STRING,
SPEC1 TYPE STRING,
SPEC2 TYPE STRING,
SPEC3 TYPE STRING,
SALCU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKW_EMPLOYEE_CONTRACT_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_PKW_EMPLOYEE_CONTRACT_STR-TDATE sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-LDEPT sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-CNAME sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-ATHUP sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-ADRL1 sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-ADRL2 sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-ENAME sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-ENATI sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-PNUMR sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-PROFS sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-SALAR sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-CONFR sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-CONTO sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-SPEC1 sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-SPEC2 sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-SPEC3 sy-vline 
WA_PKW_EMPLOYEE_CONTRACT_STR-SALCU sy-vline      INTO ld_text SEPARATED BY SPACE.

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