ABAP Select data from SAP table T7PIQ_NL_INSTIT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7PIQ_NL_INSTIT 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 T7PIQ_NL_INSTIT. 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 T7PIQ_NL_INSTIT 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_T7PIQ_NL_INSTIT TYPE STANDARD TABLE OF T7PIQ_NL_INSTIT,
      WA_T7PIQ_NL_INSTIT TYPE T7PIQ_NL_INSTIT,
      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: <T7PIQ_NL_INSTIT> TYPE T7PIQ_NL_INSTIT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7PIQ_NL_INSTIT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7PIQ_NL_INSTIT
  INTO TABLE IT_T7PIQ_NL_INSTIT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7PIQ_NL_INSTIT
*  INTO TABLE @DATA(IT_T7PIQ_NL_INSTIT2).
*--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_T7PIQ_NL_INSTIT INDEX 1 INTO DATA(WA_T7PIQ_NL_INSTIT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7PIQ_NL_INSTIT ASSIGNING <T7PIQ_NL_INSTIT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7PIQ_NL_INSTIT>-MANDT = 1.
<T7PIQ_NL_INSTIT>-BRINNUMBER = 1.
<T7PIQ_NL_INSTIT>-TRAIT = 1.
<T7PIQ_NL_INSTIT>-BEGINDATE = 1.
<T7PIQ_NL_INSTIT>-CHANGEDATE = 1.

ENDLOOP.

LOOP AT IT_T7PIQ_NL_INSTIT INTO WA_T7PIQ_NL_INSTIT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7PIQ_NL_INSTIT-BRINSEQUENCE, sy-vline,
  WA_T7PIQ_NL_INSTIT-ENDDATE, sy-vline,
  WA_T7PIQ_NL_INSTIT-INSTNAMELONG, sy-vline,
  WA_T7PIQ_NL_INSTIT-INSTNAMESHORT, sy-vline,
  WA_T7PIQ_NL_INSTIT-DEFRAYMENTCODE, sy-vline,
  WA_T7PIQ_NL_INSTIT-STREET1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7PIQ_NL_INSTIT 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_T7PIQ_NL_INSTIT 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_T7PIQ_NL_INSTIT INTO WA_T7PIQ_NL_INSTIT.


*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 SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_T7PIQ_NL_INSTIT-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7PIQ_NL_INSTIT-EMAIL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field WEB
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_T7PIQ_NL_INSTIT-WEB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7PIQ_NL_INSTIT-WEB.
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_T7PIQ_NL_INSTIT_STR, 
MANDT TYPE STRING,
BRINNUMBER TYPE STRING,
TRAIT TYPE STRING,
BEGINDATE TYPE STRING,
CHANGEDATE TYPE STRING,
BRINSEQUENCE TYPE STRING,
ENDDATE TYPE STRING,
INSTNAMELONG TYPE STRING,
INSTNAMESHORT TYPE STRING,
DEFRAYMENTCODE TYPE STRING,
STREET1 TYPE STRING,
HOUSENUMBER1 TYPE STRING,
HOUSENUMREF1 TYPE STRING,
LOCATIONREF1 TYPE STRING,
POSTCODE1 TYPE STRING,
CITY1 TYPE STRING,
STREET2 TYPE STRING,
HOUSENUMBER2 TYPE STRING,
HOUSENUMREF2 TYPE STRING,
LOCATIONREF2 TYPE STRING,
POSTCODE2 TYPE STRING,
CITY2 TYPE STRING,
MUNICIPALITY TYPE STRING,
PHONE TYPE STRING,
FAX TYPE STRING,
EMAIL TYPE STRING,
WEB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7PIQ_NL_INSTIT_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_T7PIQ_NL_INSTIT_STR-MANDT sy-vline 
WA_T7PIQ_NL_INSTIT_STR-BRINNUMBER sy-vline 
WA_T7PIQ_NL_INSTIT_STR-TRAIT sy-vline 
WA_T7PIQ_NL_INSTIT_STR-BEGINDATE sy-vline 
WA_T7PIQ_NL_INSTIT_STR-CHANGEDATE sy-vline 
WA_T7PIQ_NL_INSTIT_STR-BRINSEQUENCE sy-vline 
WA_T7PIQ_NL_INSTIT_STR-ENDDATE sy-vline 
WA_T7PIQ_NL_INSTIT_STR-INSTNAMELONG sy-vline 
WA_T7PIQ_NL_INSTIT_STR-INSTNAMESHORT sy-vline 
WA_T7PIQ_NL_INSTIT_STR-DEFRAYMENTCODE sy-vline 
WA_T7PIQ_NL_INSTIT_STR-STREET1 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-HOUSENUMBER1 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-HOUSENUMREF1 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-LOCATIONREF1 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-POSTCODE1 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-CITY1 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-STREET2 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-HOUSENUMBER2 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-HOUSENUMREF2 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-LOCATIONREF2 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-POSTCODE2 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-CITY2 sy-vline 
WA_T7PIQ_NL_INSTIT_STR-MUNICIPALITY sy-vline 
WA_T7PIQ_NL_INSTIT_STR-PHONE sy-vline 
WA_T7PIQ_NL_INSTIT_STR-FAX sy-vline 
WA_T7PIQ_NL_INSTIT_STR-EMAIL sy-vline 
WA_T7PIQ_NL_INSTIT_STR-WEB sy-vline      INTO ld_text SEPARATED BY SPACE.

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