ABAP Select data from SAP table PSAP_ADD_EMPINFO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PSAP_ADD_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 PSAP_ADD_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 PSAP_ADD_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_PSAP_ADD_EMPINFO TYPE STANDARD TABLE OF PSAP_ADD_EMPINFO,
      WA_PSAP_ADD_EMPINFO TYPE PSAP_ADD_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: <PSAP_ADD_EMPINFO> TYPE PSAP_ADD_EMPINFO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSAP_ADD_EMPINFO
*  INTO TABLE @DATA(IT_PSAP_ADD_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_PSAP_ADD_EMPINFO INDEX 1 INTO DATA(WA_PSAP_ADD_EMPINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSAP_ADD_EMPINFO>-MASSN = 1.
<PSAP_ADD_EMPINFO>-MASSG = 1.
<PSAP_ADD_EMPINFO>-GBDAT = 1.
<PSAP_ADD_EMPINFO>-GESCH = 1.
<PSAP_ADD_EMPINFO>-NATIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSAP_ADD_EMPINFO-NATI2, sy-vline,
  WA_PSAP_ADD_EMPINFO-NATI3, sy-vline,
  WA_PSAP_ADD_EMPINFO-KITXT, sy-vline,
  WA_PSAP_ADD_EMPINFO-FRESI, sy-vline,
  WA_PSAP_ADD_EMPINFO-NOCPH, sy-vline,
  WA_PSAP_ADD_EMPINFO-CACNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSAP_ADD_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_PSAP_ADD_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_PSAP_ADD_EMPINFO INTO WA_PSAP_ADD_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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PSAP_ADD_EMPINFO-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSAP_ADD_EMPINFO-GBDAT.
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_PSAP_ADD_EMPINFO_STR, 
MASSN TYPE STRING,
MASSG TYPE STRING,
GBDAT TYPE STRING,
GESCH TYPE STRING,
NATIO TYPE STRING,
NATI2 TYPE STRING,
NATI3 TYPE STRING,
KITXT TYPE STRING,
FRESI TYPE STRING,
NOCPH TYPE STRING,
CACNT TYPE STRING,
REGIO TYPE STRING,
PACAT TYPE STRING,
ADCDG TYPE STRING,
JOBCF TYPE STRING,
GNGRP TYPE STRING,
CLSTR TYPE STRING,
CGRSR TYPE STRING,
GRADE TYPE STRING,
JOBBA TYPE STRING,
MANDA TYPE STRING,
DTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSAP_ADD_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_PSAP_ADD_EMPINFO_STR-MASSN sy-vline 
WA_PSAP_ADD_EMPINFO_STR-MASSG sy-vline 
WA_PSAP_ADD_EMPINFO_STR-GBDAT sy-vline 
WA_PSAP_ADD_EMPINFO_STR-GESCH sy-vline 
WA_PSAP_ADD_EMPINFO_STR-NATIO sy-vline 
WA_PSAP_ADD_EMPINFO_STR-NATI2 sy-vline 
WA_PSAP_ADD_EMPINFO_STR-NATI3 sy-vline 
WA_PSAP_ADD_EMPINFO_STR-KITXT sy-vline 
WA_PSAP_ADD_EMPINFO_STR-FRESI sy-vline 
WA_PSAP_ADD_EMPINFO_STR-NOCPH sy-vline 
WA_PSAP_ADD_EMPINFO_STR-CACNT sy-vline 
WA_PSAP_ADD_EMPINFO_STR-REGIO sy-vline 
WA_PSAP_ADD_EMPINFO_STR-PACAT sy-vline 
WA_PSAP_ADD_EMPINFO_STR-ADCDG sy-vline 
WA_PSAP_ADD_EMPINFO_STR-JOBCF sy-vline 
WA_PSAP_ADD_EMPINFO_STR-GNGRP sy-vline 
WA_PSAP_ADD_EMPINFO_STR-CLSTR sy-vline 
WA_PSAP_ADD_EMPINFO_STR-CGRSR sy-vline 
WA_PSAP_ADD_EMPINFO_STR-GRADE sy-vline 
WA_PSAP_ADD_EMPINFO_STR-JOBBA sy-vline 
WA_PSAP_ADD_EMPINFO_STR-MANDA sy-vline 
WA_PSAP_ADD_EMPINFO_STR-DTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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