ABAP Select data from SAP table VCCIHT_ERQT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCCIHT_ERQT
*  INTO TABLE @DATA(IT_VCCIHT_ERQT2).
*--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_VCCIHT_ERQT INDEX 1 INTO DATA(WA_VCCIHT_ERQT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VCCIHT_ERQT>-MANDT = 1.
<VCCIHT_ERQT>-RECN = 1.
<VCCIHT_ERQT>-ACTN = 1.
<VCCIHT_ERQT>-VALFR = 1.
<VCCIHT_ERQT>-VALTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VCCIHT_ERQT-AENNR, sy-vline,
  WA_VCCIHT_ERQT-DELFLG, sy-vline,
  WA_VCCIHT_ERQT-PARKFLG, sy-vline,
  WA_VCCIHT_ERQT-CRDAT, sy-vline,
  WA_VCCIHT_ERQT-CRNAM, sy-vline,
  WA_VCCIHT_ERQT-UPDDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VCCIHT_ERQT 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_VCCIHT_ERQT 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_VCCIHT_ERQT INTO WA_VCCIHT_ERQT.


*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 ALPHA, internal->external for field RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERQT-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERQT-RECN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERQT-ACTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERQT-ACTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERQT-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERQT-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OWNID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERQT-OWNID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERQT-OWNID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNROOT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERQT-RECNROOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERQT-RECNROOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EPQUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERQT-EPQUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERQT-EPQUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNTMJ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERQT-RECNTMJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERQT-RECNTMJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNTMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERQT-RECNTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERQT-RECNTMP.
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_VCCIHT_ERQT_STR, 
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
EPQUANTTYPE TYPE STRING,
LTTYPE TYPE STRING,
EPQUANTSET TYPE STRING,
EPQUANTVAL TYPE STRING,
HQVALFLOAT TYPE STRING,
HQVALDECIMALS TYPE STRING,
EPQUNIT TYPE STRING,
MSRBGNDATE TYPE STRING,
MSRBGNTIME TYPE STRING,
MSRENDDATE TYPE STRING,
MSRENDTIME TYPE STRING,
MSRNAM TYPE STRING,
MSRNAMFLG TYPE STRING,
MSRORDNR TYPE STRING,
MSRDESC TYPE STRING,
MSRDESCFLG TYPE STRING,
MSRPROCEDURE TYPE STRING,
MSRSTAT TYPE STRING,
MSRINITSTAT TYPE STRING,
OBJNR TYPE STRING,
MSRNAMGRP TYPE STRING,
RECNTMJ TYPE STRING,
RECNTMP TYPE STRING,
PROBANDGRP TYPE STRING,
PROBAND TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VCCIHT_ERQT_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_VCCIHT_ERQT_STR-MANDT sy-vline 
WA_VCCIHT_ERQT_STR-RECN sy-vline 
WA_VCCIHT_ERQT_STR-ACTN sy-vline 
WA_VCCIHT_ERQT_STR-VALFR sy-vline 
WA_VCCIHT_ERQT_STR-VALTO sy-vline 
WA_VCCIHT_ERQT_STR-AENNR sy-vline 
WA_VCCIHT_ERQT_STR-DELFLG sy-vline 
WA_VCCIHT_ERQT_STR-PARKFLG sy-vline 
WA_VCCIHT_ERQT_STR-CRDAT sy-vline 
WA_VCCIHT_ERQT_STR-CRNAM sy-vline 
WA_VCCIHT_ERQT_STR-UPDDAT sy-vline 
WA_VCCIHT_ERQT_STR-UPDNAM sy-vline 
WA_VCCIHT_ERQT_STR-SRSID sy-vline 
WA_VCCIHT_ERQT_STR-OWNID sy-vline 
WA_VCCIHT_ERQT_STR-RECNROOT sy-vline 
WA_VCCIHT_ERQT_STR-EPQUANTTYPE sy-vline 
WA_VCCIHT_ERQT_STR-LTTYPE sy-vline 
WA_VCCIHT_ERQT_STR-EPQUANTSET sy-vline 
WA_VCCIHT_ERQT_STR-EPQUANTVAL sy-vline 
WA_VCCIHT_ERQT_STR-HQVALFLOAT sy-vline 
WA_VCCIHT_ERQT_STR-HQVALDECIMALS sy-vline 
WA_VCCIHT_ERQT_STR-EPQUNIT sy-vline 
WA_VCCIHT_ERQT_STR-MSRBGNDATE sy-vline 
WA_VCCIHT_ERQT_STR-MSRBGNTIME sy-vline 
WA_VCCIHT_ERQT_STR-MSRENDDATE sy-vline 
WA_VCCIHT_ERQT_STR-MSRENDTIME sy-vline 
WA_VCCIHT_ERQT_STR-MSRNAM sy-vline 
WA_VCCIHT_ERQT_STR-MSRNAMFLG sy-vline 
WA_VCCIHT_ERQT_STR-MSRORDNR sy-vline 
WA_VCCIHT_ERQT_STR-MSRDESC sy-vline 
WA_VCCIHT_ERQT_STR-MSRDESCFLG sy-vline 
WA_VCCIHT_ERQT_STR-MSRPROCEDURE sy-vline 
WA_VCCIHT_ERQT_STR-MSRSTAT sy-vline 
WA_VCCIHT_ERQT_STR-MSRINITSTAT sy-vline 
WA_VCCIHT_ERQT_STR-OBJNR sy-vline 
WA_VCCIHT_ERQT_STR-MSRNAMGRP sy-vline 
WA_VCCIHT_ERQT_STR-RECNTMJ sy-vline 
WA_VCCIHT_ERQT_STR-RECNTMP sy-vline 
WA_VCCIHT_ERQT_STR-PROBANDGRP sy-vline 
WA_VCCIHT_ERQT_STR-PROBAND sy-vline 
WA_VCCIHT_ERQT_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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