ABAP Select data from SAP table P02F_SET_EMZ_TO_DTA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P02F_SET_EMZ_TO_DTA 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 P02F_SET_EMZ_TO_DTA. 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 P02F_SET_EMZ_TO_DTA 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_P02F_SET_EMZ_TO_DTA TYPE STANDARD TABLE OF P02F_SET_EMZ_TO_DTA,
      WA_P02F_SET_EMZ_TO_DTA TYPE P02F_SET_EMZ_TO_DTA,
      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: <P02F_SET_EMZ_TO_DTA> TYPE P02F_SET_EMZ_TO_DTA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P02F_SET_EMZ_TO_DTA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P02F_SET_EMZ_TO_DTA
  INTO TABLE IT_P02F_SET_EMZ_TO_DTA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P02F_SET_EMZ_TO_DTA
*  INTO TABLE @DATA(IT_P02F_SET_EMZ_TO_DTA2).
*--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_P02F_SET_EMZ_TO_DTA INDEX 1 INTO DATA(WA_P02F_SET_EMZ_TO_DTA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P02F_SET_EMZ_TO_DTA ASSIGNING <P02F_SET_EMZ_TO_DTA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P02F_SET_EMZ_TO_DTA>-PERNR = 1.
<P02F_SET_EMZ_TO_DTA>-KONNR = 1.
<P02F_SET_EMZ_TO_DTA>-EMZBUDAT = 1.
<P02F_SET_EMZ_TO_DTA>-EMZSEQ = 1.
<P02F_SET_EMZ_TO_DTA>-EMZVADAT = 1.

ENDLOOP.

LOOP AT IT_P02F_SET_EMZ_TO_DTA INTO WA_P02F_SET_EMZ_TO_DTA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P02F_SET_EMZ_TO_DTA-EMZBUNR, sy-vline,
  WA_P02F_SET_EMZ_TO_DTA-EMZVAL, sy-vline,
  WA_P02F_SET_EMZ_TO_DTA-EMZAM, sy-vline,
  WA_P02F_SET_EMZ_TO_DTA-EMZST, sy-vline,
  WA_P02F_SET_EMZ_TO_DTA-DTABUDAT, sy-vline,
  WA_P02F_SET_EMZ_TO_DTA-DTASEQ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P02F_SET_EMZ_TO_DTA 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_P02F_SET_EMZ_TO_DTA 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_P02F_SET_EMZ_TO_DTA INTO WA_P02F_SET_EMZ_TO_DTA.


*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_P02F_SET_EMZ_TO_DTA_STR, 
PERNR TYPE STRING,
KONNR TYPE STRING,
EMZBUDAT TYPE STRING,
EMZSEQ TYPE STRING,
EMZVADAT TYPE STRING,
EMZBUNR TYPE STRING,
EMZVAL TYPE STRING,
EMZAM TYPE STRING,
EMZST TYPE STRING,
DTABUDAT TYPE STRING,
DTASEQ TYPE STRING,
DTAVADAT TYPE STRING,
DTABUNR TYPE STRING,
DTAVAL TYPE STRING,
DTAAM TYPE STRING,
DTAST TYPE STRING,
QSTBUDAT TYPE STRING,
QSTSEQ TYPE STRING,
QSTVADAT TYPE STRING,
QSTBUNR TYPE STRING,
QSTVAL TYPE STRING,
QSTAM TYPE STRING,
ITKAS TYPE STRING,
ITAQST TYPE STRING,
ITQST TYPE STRING,
ITSTA TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P02F_SET_EMZ_TO_DTA_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_P02F_SET_EMZ_TO_DTA_STR-PERNR sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-KONNR sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-EMZBUDAT sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-EMZSEQ sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-EMZVADAT sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-EMZBUNR sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-EMZVAL sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-EMZAM sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-EMZST sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-DTABUDAT sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-DTASEQ sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-DTAVADAT sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-DTABUNR sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-DTAVAL sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-DTAAM sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-DTAST sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-QSTBUDAT sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-QSTSEQ sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-QSTVADAT sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-QSTBUNR sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-QSTVAL sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-QSTAM sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-ITKAS sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-ITAQST sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-ITQST sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-ITSTA sy-vline 
WA_P02F_SET_EMZ_TO_DTA_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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