ABAP Select data from SAP table PEMPLOYEECL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PEMPLOYEECL
*  INTO TABLE @DATA(IT_PEMPLOYEECL2).
*--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_PEMPLOYEECL INDEX 1 INTO DATA(WA_PEMPLOYEECL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PEMPLOYEECL>-MANDT = 1.
<PEMPLOYEECL>-PERSONNELNUMBER = 1.
<PEMPLOYEECL>-EMPLOYEEINTERNALID = 1.
<PEMPLOYEECL>-EMPLOYEE = 1.
<PEMPLOYEECL>-VALIDITYSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PEMPLOYEECL-VALIDITYENDDATE, sy-vline,
  WA_PEMPLOYEECL-FORMOFADDRESS, sy-vline,
  WA_PEMPLOYEECL-FAMILYNAME, sy-vline,
  WA_PEMPLOYEECL-FIRSTNAME, sy-vline,
  WA_PEMPLOYEECL-LASTNAME, sy-vline,
  WA_PEMPLOYEECL-BUSINESSPARTNERNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PEMPLOYEECL 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_PEMPLOYEECL 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_PEMPLOYEECL INTO WA_PEMPLOYEECL.


*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 EMPLOYEEINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEMPLOYEECL-EMPLOYEEINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEMPLOYEECL-EMPLOYEEINTERNALID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field CORRESPONDENCELANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PEMPLOYEECL-CORRESPONDENCELANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEMPLOYEECL-CORRESPONDENCELANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PERSON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PEMPLOYEECL-PERSON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PEMPLOYEECL-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_PEMPLOYEECL_STR, 
MANDT TYPE STRING,
PERSONNELNUMBER TYPE STRING,
EMPLOYEEINTERNALID TYPE STRING,
EMPLOYEE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
FORMOFADDRESS TYPE STRING,
FAMILYNAME TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
BUSINESSPARTNERNAME TYPE STRING,
GIVENNAME TYPE STRING,
MIDDLENAME TYPE STRING,
ADDITIONALFAMILYNAME TYPE STRING,
ACADEMICTITLE TYPE STRING,
FAMILYNAMEPREFIX TYPE STRING,
INITIALS TYPE STRING,
FULLNAME TYPE STRING,
EMPLOYEEFULLNAME TYPE STRING,
CORRESPONDENCELANGUAGE TYPE STRING,
GENDERCODE TYPE STRING,
BUSINESSUSER TYPE STRING,
USERID TYPE STRING,
EMPLOYEEIMAGEURL TYPE STRING,
BUSINESSPARTNERROLE TYPE STRING,
PERSON TYPE STRING,
BUSINESSPARTNERUUID TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PEMPLOYEECL_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_PEMPLOYEECL_STR-MANDT sy-vline 
WA_PEMPLOYEECL_STR-PERSONNELNUMBER sy-vline 
WA_PEMPLOYEECL_STR-EMPLOYEEINTERNALID sy-vline 
WA_PEMPLOYEECL_STR-EMPLOYEE sy-vline 
WA_PEMPLOYEECL_STR-VALIDITYSTARTDATE sy-vline 
WA_PEMPLOYEECL_STR-VALIDITYENDDATE sy-vline 
WA_PEMPLOYEECL_STR-FORMOFADDRESS sy-vline 
WA_PEMPLOYEECL_STR-FAMILYNAME sy-vline 
WA_PEMPLOYEECL_STR-FIRSTNAME sy-vline 
WA_PEMPLOYEECL_STR-LASTNAME sy-vline 
WA_PEMPLOYEECL_STR-BUSINESSPARTNERNAME sy-vline 
WA_PEMPLOYEECL_STR-GIVENNAME sy-vline 
WA_PEMPLOYEECL_STR-MIDDLENAME sy-vline 
WA_PEMPLOYEECL_STR-ADDITIONALFAMILYNAME sy-vline 
WA_PEMPLOYEECL_STR-ACADEMICTITLE sy-vline 
WA_PEMPLOYEECL_STR-FAMILYNAMEPREFIX sy-vline 
WA_PEMPLOYEECL_STR-INITIALS sy-vline 
WA_PEMPLOYEECL_STR-FULLNAME sy-vline 
WA_PEMPLOYEECL_STR-EMPLOYEEFULLNAME sy-vline 
WA_PEMPLOYEECL_STR-CORRESPONDENCELANGUAGE sy-vline 
WA_PEMPLOYEECL_STR-GENDERCODE sy-vline 
WA_PEMPLOYEECL_STR-BUSINESSUSER sy-vline 
WA_PEMPLOYEECL_STR-USERID sy-vline 
WA_PEMPLOYEECL_STR-EMPLOYEEIMAGEURL sy-vline 
WA_PEMPLOYEECL_STR-BUSINESSPARTNERROLE sy-vline 
WA_PEMPLOYEECL_STR-PERSON sy-vline 
WA_PEMPLOYEECL_STR-BUSINESSPARTNERUUID sy-vline 
WA_PEMPLOYEECL_STR-CREATEDBYUSER sy-vline 
WA_PEMPLOYEECL_STR-CREATIONDATE sy-vline 
WA_PEMPLOYEECL_STR-CREATIONTIME sy-vline 
WA_PEMPLOYEECL_STR-LASTCHANGEDBYUSER sy-vline 
WA_PEMPLOYEECL_STR-LASTCHANGEDATE sy-vline 
WA_PEMPLOYEECL_STR-LASTCHANGETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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