ABAP Select data from SAP table T7INPEW1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7INPEW1 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 T7INPEW1. 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 T7INPEW1 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_T7INPEW1 TYPE STANDARD TABLE OF T7INPEW1,
      WA_T7INPEW1 TYPE T7INPEW1,
      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: <T7INPEW1> TYPE T7INPEW1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7INPEW1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7INPEW1
  INTO TABLE IT_T7INPEW1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7INPEW1
*  INTO TABLE @DATA(IT_T7INPEW12).
*--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_T7INPEW1 INDEX 1 INTO DATA(WA_T7INPEW12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7INPEW1 ASSIGNING <T7INPEW1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7INPEW1>-MANDT = 1.
<T7INPEW1>-POGUI = 1.
<T7INPEW1>-VERSN = 1.
<T7INPEW1>-STPID = 1.
<T7INPEW1>-APSEQ = 1.

ENDLOOP.

LOOP AT IT_T7INPEW1 INTO WA_T7INPEW1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7INPEW1-WFLEV, sy-vline,
  WA_T7INPEW1-ENDDA, sy-vline,
  WA_T7INPEW1-BEGDA, sy-vline,
  WA_T7INPEW1-POLID, sy-vline,
  WA_T7INPEW1-WFFIN, sy-vline,
  WA_T7INPEW1-AGCOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7INPEW1 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_T7INPEW1 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_T7INPEW1 INTO WA_T7INPEW1.


*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_T7INPEW1_STR, 
MANDT TYPE STRING,
POGUI TYPE STRING,
VERSN TYPE STRING,
STPID TYPE STRING,
APSEQ TYPE STRING,
WFLEV TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
POLID TYPE STRING,
WFFIN TYPE STRING,
AGCOD TYPE STRING,
AGENT TYPE STRING,
CONPA TYPE STRING,
WFTSK TYPE STRING,
DANX1 TYPE STRING,
NXTA1 TYPE STRING,
AGCD1 TYPE STRING,
AGNT1 TYPE STRING,
DNXT2 TYPE STRING,
NXAC2 TYPE STRING,
AGCD2 TYPE STRING,
AGNT2 TYPE STRING,
DNXT3 TYPE STRING,
NXAC3 TYPE STRING,
AGCD3 TYPE STRING,
AGNT3 TYPE STRING,
DNXT4 TYPE STRING,
NXAC4 TYPE STRING,
TXGUI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7INPEW1_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_T7INPEW1_STR-MANDT sy-vline 
WA_T7INPEW1_STR-POGUI sy-vline 
WA_T7INPEW1_STR-VERSN sy-vline 
WA_T7INPEW1_STR-STPID sy-vline 
WA_T7INPEW1_STR-APSEQ sy-vline 
WA_T7INPEW1_STR-WFLEV sy-vline 
WA_T7INPEW1_STR-ENDDA sy-vline 
WA_T7INPEW1_STR-BEGDA sy-vline 
WA_T7INPEW1_STR-POLID sy-vline 
WA_T7INPEW1_STR-WFFIN sy-vline 
WA_T7INPEW1_STR-AGCOD sy-vline 
WA_T7INPEW1_STR-AGENT sy-vline 
WA_T7INPEW1_STR-CONPA sy-vline 
WA_T7INPEW1_STR-WFTSK sy-vline 
WA_T7INPEW1_STR-DANX1 sy-vline 
WA_T7INPEW1_STR-NXTA1 sy-vline 
WA_T7INPEW1_STR-AGCD1 sy-vline 
WA_T7INPEW1_STR-AGNT1 sy-vline 
WA_T7INPEW1_STR-DNXT2 sy-vline 
WA_T7INPEW1_STR-NXAC2 sy-vline 
WA_T7INPEW1_STR-AGCD2 sy-vline 
WA_T7INPEW1_STR-AGNT2 sy-vline 
WA_T7INPEW1_STR-DNXT3 sy-vline 
WA_T7INPEW1_STR-NXAC3 sy-vline 
WA_T7INPEW1_STR-AGCD3 sy-vline 
WA_T7INPEW1_STR-AGNT3 sy-vline 
WA_T7INPEW1_STR-DNXT4 sy-vline 
WA_T7INPEW1_STR-NXAC4 sy-vline 
WA_T7INPEW1_STR-TXGUI sy-vline      INTO ld_text SEPARATED BY SPACE.

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