ABAP Select data from SAP table VCCIHT_ERH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VCCIHT_ERH 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_ERH. 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_ERH 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_ERH TYPE STANDARD TABLE OF VCCIHT_ERH,
      WA_VCCIHT_ERH TYPE VCCIHT_ERH,
      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_ERH> TYPE VCCIHT_ERH.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCCIHT_ERH
*  INTO TABLE @DATA(IT_VCCIHT_ERH2).
*--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_ERH INDEX 1 INTO DATA(WA_VCCIHT_ERH2).


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

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

ENDLOOP.

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

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


*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_ERH-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERH-RECN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field RECNTWAH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCCIHT_ERH-RECNTWAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCCIHT_ERH-RECNTWAH.
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_ERH_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,
OBJNR TYPE STRING,
RECNTWAH TYPE STRING,
EPTYPE TYPE STRING,
EPID TYPE STRING,
ERSTATUS TYPE STRING,
ERINITSTATUS TYPE STRING,
REM TYPE STRING,
RISKASSETNUM TYPE STRING,
OPCOND TYPE STRING,
RATINGCAT TYPE STRING,
MAINRATING TYPE STRING,
RAINVRESULT TYPE STRING,
LTXTFLG TYPE STRING,
ASSCONTRVAL TYPE STRING,
ASSCONTRDAT TYPE STRING,
ASSCTRPER TYPE STRING,
ASSCTRPEREXFLG TYPE STRING,
ASSCTRPERGRP TYPE STRING,
RAR TYPE STRING,
NEXTRADAT TYPE STRING,
SEVERE TYPE STRING,
PROBLTY TYPE STRING,
SOID TYPE STRING,
SOTYPE TYPE STRING,
SOPART TYPE STRING,
SOTXT TYPE STRING,
PLANBEGDAT TYPE STRING,
PLANENDDAT TYPE STRING,
ACTBEGDAT TYPE STRING,
ACTENDDAT TYPE STRING,
QUALPROTECT TYPE STRING,
CHKRATING TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VCCIHT_ERH_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_ERH_STR-MANDT sy-vline 
WA_VCCIHT_ERH_STR-RECN sy-vline 
WA_VCCIHT_ERH_STR-ACTN sy-vline 
WA_VCCIHT_ERH_STR-VALFR sy-vline 
WA_VCCIHT_ERH_STR-VALTO sy-vline 
WA_VCCIHT_ERH_STR-AENNR sy-vline 
WA_VCCIHT_ERH_STR-DELFLG sy-vline 
WA_VCCIHT_ERH_STR-PARKFLG sy-vline 
WA_VCCIHT_ERH_STR-CRDAT sy-vline 
WA_VCCIHT_ERH_STR-CRNAM sy-vline 
WA_VCCIHT_ERH_STR-UPDDAT sy-vline 
WA_VCCIHT_ERH_STR-UPDNAM sy-vline 
WA_VCCIHT_ERH_STR-SRSID sy-vline 
WA_VCCIHT_ERH_STR-OWNID sy-vline 
WA_VCCIHT_ERH_STR-RECNROOT sy-vline 
WA_VCCIHT_ERH_STR-OBJNR sy-vline 
WA_VCCIHT_ERH_STR-RECNTWAH sy-vline 
WA_VCCIHT_ERH_STR-EPTYPE sy-vline 
WA_VCCIHT_ERH_STR-EPID sy-vline 
WA_VCCIHT_ERH_STR-ERSTATUS sy-vline 
WA_VCCIHT_ERH_STR-ERINITSTATUS sy-vline 
WA_VCCIHT_ERH_STR-REM sy-vline 
WA_VCCIHT_ERH_STR-RISKASSETNUM sy-vline 
WA_VCCIHT_ERH_STR-OPCOND sy-vline 
WA_VCCIHT_ERH_STR-RATINGCAT sy-vline 
WA_VCCIHT_ERH_STR-MAINRATING sy-vline 
WA_VCCIHT_ERH_STR-RAINVRESULT sy-vline 
WA_VCCIHT_ERH_STR-LTXTFLG sy-vline 
WA_VCCIHT_ERH_STR-ASSCONTRVAL sy-vline 
WA_VCCIHT_ERH_STR-ASSCONTRDAT sy-vline 
WA_VCCIHT_ERH_STR-ASSCTRPER sy-vline 
WA_VCCIHT_ERH_STR-ASSCTRPEREXFLG sy-vline 
WA_VCCIHT_ERH_STR-ASSCTRPERGRP sy-vline 
WA_VCCIHT_ERH_STR-RAR sy-vline 
WA_VCCIHT_ERH_STR-NEXTRADAT sy-vline 
WA_VCCIHT_ERH_STR-SEVERE sy-vline 
WA_VCCIHT_ERH_STR-PROBLTY sy-vline 
WA_VCCIHT_ERH_STR-SOID sy-vline 
WA_VCCIHT_ERH_STR-SOTYPE sy-vline 
WA_VCCIHT_ERH_STR-SOPART sy-vline 
WA_VCCIHT_ERH_STR-SOTXT sy-vline 
WA_VCCIHT_ERH_STR-PLANBEGDAT sy-vline 
WA_VCCIHT_ERH_STR-PLANENDDAT sy-vline 
WA_VCCIHT_ERH_STR-ACTBEGDAT sy-vline 
WA_VCCIHT_ERH_STR-ACTENDDAT sy-vline 
WA_VCCIHT_ERH_STR-QUALPROTECT sy-vline 
WA_VCCIHT_ERH_STR-CHKRATING sy-vline 
WA_VCCIHT_ERH_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.