ABAP Select data from SAP table PAEP_EMPINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAEP_EMPINFO
*  INTO TABLE @DATA(IT_PAEP_EMPINFO2).
*--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_PAEP_EMPINFO INDEX 1 INTO DATA(WA_PAEP_EMPINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAEP_EMPINFO>-PERNR = 1.
<PAEP_EMPINFO>-ENAME = 1.
<PAEP_EMPINFO>-SNAME = 1.
<PAEP_EMPINFO>-BEGDA = 1.
<PAEP_EMPINFO>-ENDDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAEP_EMPINFO-KOSTL, sy-vline,
  WA_PAEP_EMPINFO-KTEXT, sy-vline,
  WA_PAEP_EMPINFO-KOKRS, sy-vline,
  WA_PAEP_EMPINFO-ORGEH, sy-vline,
  WA_PAEP_EMPINFO-ORGTX, sy-vline,
  WA_PAEP_EMPINFO-STELL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAEP_EMPINFO 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_PAEP_EMPINFO 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_PAEP_EMPINFO INTO WA_PAEP_EMPINFO.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAEP_EMPINFO-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAEP_EMPINFO-KOSTL.
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_PAEP_EMPINFO_STR, 
PERNR TYPE STRING,
ENAME TYPE STRING,
SNAME TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
KOSTL TYPE STRING,
KTEXT TYPE STRING,
KOKRS TYPE STRING,
ORGEH TYPE STRING,
ORGTX TYPE STRING,
STELL TYPE STRING,
JOBTX TYPE STRING,
PLANS TYPE STRING,
POSTX TYPE STRING,
CAREA TYPE STRING,
MPERNR TYPE STRING,
MNAME TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
MOLGA TYPE STRING,
CPIND TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
TRFKZ TYPE STRING,
WAERS TYPE STRING,
ANSAL TYPE STRING,
ANCUR TYPE STRING,
BSGRD TYPE STRING,
DIVGV TYPE STRING,
PERFR TYPE STRING,
PDATE TYPE STRING,
ELOCK TYPE STRING,
ENTDA TYPE STRING,
LEVDA TYPE STRING,
FAMST TYPE STRING,
BUKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAEP_EMPINFO_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_PAEP_EMPINFO_STR-PERNR sy-vline 
WA_PAEP_EMPINFO_STR-ENAME sy-vline 
WA_PAEP_EMPINFO_STR-SNAME sy-vline 
WA_PAEP_EMPINFO_STR-BEGDA sy-vline 
WA_PAEP_EMPINFO_STR-ENDDA sy-vline 
WA_PAEP_EMPINFO_STR-KOSTL sy-vline 
WA_PAEP_EMPINFO_STR-KTEXT sy-vline 
WA_PAEP_EMPINFO_STR-KOKRS sy-vline 
WA_PAEP_EMPINFO_STR-ORGEH sy-vline 
WA_PAEP_EMPINFO_STR-ORGTX sy-vline 
WA_PAEP_EMPINFO_STR-STELL sy-vline 
WA_PAEP_EMPINFO_STR-JOBTX sy-vline 
WA_PAEP_EMPINFO_STR-PLANS sy-vline 
WA_PAEP_EMPINFO_STR-POSTX sy-vline 
WA_PAEP_EMPINFO_STR-CAREA sy-vline 
WA_PAEP_EMPINFO_STR-MPERNR sy-vline 
WA_PAEP_EMPINFO_STR-MNAME sy-vline 
WA_PAEP_EMPINFO_STR-WERKS sy-vline 
WA_PAEP_EMPINFO_STR-BTRTL sy-vline 
WA_PAEP_EMPINFO_STR-PERSG sy-vline 
WA_PAEP_EMPINFO_STR-PERSK sy-vline 
WA_PAEP_EMPINFO_STR-MOLGA sy-vline 
WA_PAEP_EMPINFO_STR-CPIND sy-vline 
WA_PAEP_EMPINFO_STR-TRFAR sy-vline 
WA_PAEP_EMPINFO_STR-TRFGB sy-vline 
WA_PAEP_EMPINFO_STR-TRFGR sy-vline 
WA_PAEP_EMPINFO_STR-TRFST sy-vline 
WA_PAEP_EMPINFO_STR-TRFKZ sy-vline 
WA_PAEP_EMPINFO_STR-WAERS sy-vline 
WA_PAEP_EMPINFO_STR-ANSAL sy-vline 
WA_PAEP_EMPINFO_STR-ANCUR sy-vline 
WA_PAEP_EMPINFO_STR-BSGRD sy-vline 
WA_PAEP_EMPINFO_STR-DIVGV sy-vline 
WA_PAEP_EMPINFO_STR-PERFR sy-vline 
WA_PAEP_EMPINFO_STR-PDATE sy-vline 
WA_PAEP_EMPINFO_STR-ELOCK sy-vline 
WA_PAEP_EMPINFO_STR-ENTDA sy-vline 
WA_PAEP_EMPINFO_STR-LEVDA sy-vline 
WA_PAEP_EMPINFO_STR-FAMST sy-vline 
WA_PAEP_EMPINFO_STR-BUKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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