ABAP Select data from SAP table DISPLAY_TE422 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DISPLAY_TE422 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 DISPLAY_TE422. 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 DISPLAY_TE422 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_DISPLAY_TE422 TYPE STANDARD TABLE OF DISPLAY_TE422,
      WA_DISPLAY_TE422 TYPE DISPLAY_TE422,
      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: <DISPLAY_TE422> TYPE DISPLAY_TE422.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DISPLAY_TE422.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DISPLAY_TE422
  INTO TABLE IT_DISPLAY_TE422.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DISPLAY_TE422
*  INTO TABLE @DATA(IT_DISPLAY_TE4222).
*--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_DISPLAY_TE422 INDEX 1 INTO DATA(WA_DISPLAY_TE4222).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DISPLAY_TE422 ASSIGNING <DISPLAY_TE422>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DISPLAY_TE422>-MANDT = 1.
<DISPLAY_TE422>-TERMSCHL = 1.
<DISPLAY_TE422>-TERMTEXT = 1.
<DISPLAY_TE422>-PERIODEW = 1.
<DISPLAY_TE422>-PERIODET = 1.

ENDLOOP.

LOOP AT IT_DISPLAY_TE422 INTO WA_DISPLAY_TE422.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DISPLAY_TE422-EPER_ABL, sy-vline,
  WA_DISPLAY_TE422-AUF_ABL, sy-vline,
  WA_DISPLAY_TE422-DOWNL_ABL, sy-vline,
  WA_DISPLAY_TE422-DRUCK_ABL, sy-vline,
  WA_DISPLAY_TE422-ANSCH_AUF, sy-vline,
  WA_DISPLAY_TE422-AUKSA_AUF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DISPLAY_TE422 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_DISPLAY_TE422 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_DISPLAY_TE422 INTO WA_DISPLAY_TE422.


*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_DISPLAY_TE422_STR, 
MANDT TYPE STRING,
TERMSCHL TYPE STRING,
TERMTEXT TYPE STRING,
PERIODEW TYPE STRING,
PERIODET TYPE STRING,
EPER_ABL TYPE STRING,
AUF_ABL TYPE STRING,
DOWNL_ABL TYPE STRING,
DRUCK_ABL TYPE STRING,
ANSCH_AUF TYPE STRING,
AUKSA_AUF TYPE STRING,
ZLEISTE TYPE STRING,
PORTION TYPE STRING,
ABLESER TYPE STRING,
ABLZEIT TYPE STRING,
BELGNABL TYPE STRING,
AZVORABL TYPE STRING,
FORMULAR TYPE STRING,
ZUSMIT TYPE STRING,
DECKBLAT TYPE STRING,
KSA_FORM TYPE STRING,
ANSCH_FORM TYPE STRING,
MDENR TYPE STRING,
ZUORDKZ TYPE STRING,
MUENZZ TYPE STRING,
ABLKAR TYPE STRING,
STANDKAR TYPE STRING,
ANSCHKAR TYPE STRING,
ABLART TYPE STRING,
EROEDAT TYPE STRING,
ERNAM TYPE STRING,
AENDDATE TYPE STRING,
AENDNAM TYPE STRING,
ABLFIRMA TYPE STRING,
VERTRKL1 TYPE STRING,
SPARTENTY1 TYPE STRING,
VERTRKL2 TYPE STRING,
SPARTENTY2 TYPE STRING,
VERTRKL3 TYPE STRING,
SPARTENTY3 TYPE STRING,
VERTRKL4 TYPE STRING,
SPARTENTY4 TYPE STRING,
VERTRKL5 TYPE STRING,
SPARTENTY5 TYPE STRING,
IDENT TYPE STRING,
SAPKAL TYPE STRING,
STICHTAG TYPE STRING,
DOWN_FORM TYPE STRING,
TS_DYN TYPE STRING,
ADV_BILL TYPE STRING,
TAGE TYPE STRING,
AUF_KAL TYPE STRING,
DRU_KAL TYPE STRING,
DOW_KAL TYPE STRING,
ANK_KAL TYPE STRING,
KND_KAL TYPE STRING,
ABL_Z TYPE STRING,
BEGRU TYPE STRING,
PS_USE TYPE STRING,
OSB_GROUP TYPE STRING,
VISIBILITY TYPE STRING,
BOX TYPE STRING,
DELETED TYPE STRING,
LINNO TYPE STRING,
PAGNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DISPLAY_TE422_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_DISPLAY_TE422_STR-MANDT sy-vline 
WA_DISPLAY_TE422_STR-TERMSCHL sy-vline 
WA_DISPLAY_TE422_STR-TERMTEXT sy-vline 
WA_DISPLAY_TE422_STR-PERIODEW sy-vline 
WA_DISPLAY_TE422_STR-PERIODET sy-vline 
WA_DISPLAY_TE422_STR-EPER_ABL sy-vline 
WA_DISPLAY_TE422_STR-AUF_ABL sy-vline 
WA_DISPLAY_TE422_STR-DOWNL_ABL sy-vline 
WA_DISPLAY_TE422_STR-DRUCK_ABL sy-vline 
WA_DISPLAY_TE422_STR-ANSCH_AUF sy-vline 
WA_DISPLAY_TE422_STR-AUKSA_AUF sy-vline 
WA_DISPLAY_TE422_STR-ZLEISTE sy-vline 
WA_DISPLAY_TE422_STR-PORTION sy-vline 
WA_DISPLAY_TE422_STR-ABLESER sy-vline 
WA_DISPLAY_TE422_STR-ABLZEIT sy-vline 
WA_DISPLAY_TE422_STR-BELGNABL sy-vline 
WA_DISPLAY_TE422_STR-AZVORABL sy-vline 
WA_DISPLAY_TE422_STR-FORMULAR sy-vline 
WA_DISPLAY_TE422_STR-ZUSMIT sy-vline 
WA_DISPLAY_TE422_STR-DECKBLAT sy-vline 
WA_DISPLAY_TE422_STR-KSA_FORM sy-vline 
WA_DISPLAY_TE422_STR-ANSCH_FORM sy-vline 
WA_DISPLAY_TE422_STR-MDENR sy-vline 
WA_DISPLAY_TE422_STR-ZUORDKZ sy-vline 
WA_DISPLAY_TE422_STR-MUENZZ sy-vline 
WA_DISPLAY_TE422_STR-ABLKAR sy-vline 
WA_DISPLAY_TE422_STR-STANDKAR sy-vline 
WA_DISPLAY_TE422_STR-ANSCHKAR sy-vline 
WA_DISPLAY_TE422_STR-ABLART sy-vline 
WA_DISPLAY_TE422_STR-EROEDAT sy-vline 
WA_DISPLAY_TE422_STR-ERNAM sy-vline 
WA_DISPLAY_TE422_STR-AENDDATE sy-vline 
WA_DISPLAY_TE422_STR-AENDNAM sy-vline 
WA_DISPLAY_TE422_STR-ABLFIRMA sy-vline 
WA_DISPLAY_TE422_STR-VERTRKL1 sy-vline 
WA_DISPLAY_TE422_STR-SPARTENTY1 sy-vline 
WA_DISPLAY_TE422_STR-VERTRKL2 sy-vline 
WA_DISPLAY_TE422_STR-SPARTENTY2 sy-vline 
WA_DISPLAY_TE422_STR-VERTRKL3 sy-vline 
WA_DISPLAY_TE422_STR-SPARTENTY3 sy-vline 
WA_DISPLAY_TE422_STR-VERTRKL4 sy-vline 
WA_DISPLAY_TE422_STR-SPARTENTY4 sy-vline 
WA_DISPLAY_TE422_STR-VERTRKL5 sy-vline 
WA_DISPLAY_TE422_STR-SPARTENTY5 sy-vline 
WA_DISPLAY_TE422_STR-IDENT sy-vline 
WA_DISPLAY_TE422_STR-SAPKAL sy-vline 
WA_DISPLAY_TE422_STR-STICHTAG sy-vline 
WA_DISPLAY_TE422_STR-DOWN_FORM sy-vline 
WA_DISPLAY_TE422_STR-TS_DYN sy-vline 
WA_DISPLAY_TE422_STR-ADV_BILL sy-vline 
WA_DISPLAY_TE422_STR-TAGE sy-vline 
WA_DISPLAY_TE422_STR-AUF_KAL sy-vline 
WA_DISPLAY_TE422_STR-DRU_KAL sy-vline 
WA_DISPLAY_TE422_STR-DOW_KAL sy-vline 
WA_DISPLAY_TE422_STR-ANK_KAL sy-vline 
WA_DISPLAY_TE422_STR-KND_KAL sy-vline 
WA_DISPLAY_TE422_STR-ABL_Z sy-vline 
WA_DISPLAY_TE422_STR-BEGRU sy-vline 
WA_DISPLAY_TE422_STR-PS_USE sy-vline 
WA_DISPLAY_TE422_STR-OSB_GROUP sy-vline 
WA_DISPLAY_TE422_STR-VISIBILITY sy-vline 
WA_DISPLAY_TE422_STR-BOX sy-vline 
WA_DISPLAY_TE422_STR-DELETED sy-vline 
WA_DISPLAY_TE422_STR-LINNO sy-vline 
WA_DISPLAY_TE422_STR-PAGNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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