ABAP Select data from SAP table CPERSWKAGRMTCTRL into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPERSWKAGRMTCTRL 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 CPERSWKAGRMTCTRL. 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 CPERSWKAGRMTCTRL 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_CPERSWKAGRMTCTRL TYPE STANDARD TABLE OF CPERSWKAGRMTCTRL,
      WA_CPERSWKAGRMTCTRL TYPE CPERSWKAGRMTCTRL,
      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: <CPERSWKAGRMTCTRL> TYPE CPERSWKAGRMTCTRL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPERSWKAGRMTCTRL
*  INTO TABLE @DATA(IT_CPERSWKAGRMTCTRL2).
*--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_CPERSWKAGRMTCTRL INDEX 1 INTO DATA(WA_CPERSWKAGRMTCTRL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPERSWKAGRMTCTRL>-MANDT = 1.
<CPERSWKAGRMTCTRL>-PERSON = 1.
<CPERSWKAGRMTCTRL>-PERSONWORKAGREEMENT = 1.
<CPERSWKAGRMTCTRL>-KEYDATE = 1.
<CPERSWKAGRMTCTRL>-VALIDITYENDDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPERSWKAGRMTCTRL-VALIDITYSTARTDATE, sy-vline,
  WA_CPERSWKAGRMTCTRL-SERVICECOSTLEVEL, sy-vline,
  WA_CPERSWKAGRMTCTRL-STARTDATE, sy-vline,
  WA_CPERSWKAGRMTCTRL-JOB, sy-vline,
  WA_CPERSWKAGRMTCTRL-JOBCODE, sy-vline,
  WA_CPERSWKAGRMTCTRL-JOBNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPERSWKAGRMTCTRL 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_CPERSWKAGRMTCTRL 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_CPERSWKAGRMTCTRL INTO WA_CPERSWKAGRMTCTRL.


*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 PERSON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPERSWKAGRMTCTRL-PERSON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPERSWKAGRMTCTRL-PERSON.
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_CPERSWKAGRMTCTRL_STR, 
MANDT TYPE STRING,
PERSON TYPE STRING,
PERSONWORKAGREEMENT TYPE STRING,
KEYDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
SERVICECOSTLEVEL TYPE STRING,
STARTDATE TYPE STRING,
JOB TYPE STRING,
JOBCODE TYPE STRING,
JOBNAME TYPE STRING,
SERVICECOSTLEVELNAME TYPE STRING,
LASTCHANGEDBYUSERFULLNAME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
PERSONWORKAGRMTAUTHZNGRPG TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
ORGANIZATIONALUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPERSWKAGRMTCTRL_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_CPERSWKAGRMTCTRL_STR-MANDT sy-vline 
WA_CPERSWKAGRMTCTRL_STR-PERSON sy-vline 
WA_CPERSWKAGRMTCTRL_STR-PERSONWORKAGREEMENT sy-vline 
WA_CPERSWKAGRMTCTRL_STR-KEYDATE sy-vline 
WA_CPERSWKAGRMTCTRL_STR-VALIDITYENDDATE sy-vline 
WA_CPERSWKAGRMTCTRL_STR-VALIDITYSTARTDATE sy-vline 
WA_CPERSWKAGRMTCTRL_STR-SERVICECOSTLEVEL sy-vline 
WA_CPERSWKAGRMTCTRL_STR-STARTDATE sy-vline 
WA_CPERSWKAGRMTCTRL_STR-JOB sy-vline 
WA_CPERSWKAGRMTCTRL_STR-JOBCODE sy-vline 
WA_CPERSWKAGRMTCTRL_STR-JOBNAME sy-vline 
WA_CPERSWKAGRMTCTRL_STR-SERVICECOSTLEVELNAME sy-vline 
WA_CPERSWKAGRMTCTRL_STR-LASTCHANGEDBYUSERFULLNAME sy-vline 
WA_CPERSWKAGRMTCTRL_STR-LASTCHANGEDATE sy-vline 
WA_CPERSWKAGRMTCTRL_STR-PERSONWORKAGRMTAUTHZNGRPG sy-vline 
WA_CPERSWKAGRMTCTRL_STR-AUTHORIZATIONGROUP sy-vline 
WA_CPERSWKAGRMTCTRL_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_CPERSWKAGRMTCTRL_STR-ORGANIZATIONALUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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