ABAP Select data from SAP table VHRT1894 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VHRT1894 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 VHRT1894. 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 VHRT1894 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_VHRT1894 TYPE STANDARD TABLE OF VHRT1894,
      WA_VHRT1894 TYPE VHRT1894,
      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: <VHRT1894> TYPE VHRT1894.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VHRT1894.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VHRT1894
  INTO TABLE IT_VHRT1894.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VHRT1894
*  INTO TABLE @DATA(IT_VHRT18942).
*--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_VHRT1894 INDEX 1 INTO DATA(WA_VHRT18942).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VHRT1894 ASSIGNING <VHRT1894>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VHRT1894>-MANDT = 1.
<VHRT1894>-TABNR = 1.
<VHRT1894>-TABSEQNR = 1.
<VHRT1894>-PAID_INBRIN = 1.
<VHRT1894>-BRIN_SEQ = 1.

ENDLOOP.

LOOP AT IT_VHRT1894 INTO WA_VHRT1894.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VHRT1894-INITAMT, sy-vline,
  WA_VHRT1894-VALUTA_INIT, sy-vline,
  WA_VHRT1894-INSTAMT, sy-vline,
  WA_VHRT1894-VALUTA_INST, sy-vline,
  WA_VHRT1894-PRF_INSTATUS, sy-vline,
  WA_VHRT1894-RECEIV_BY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VHRT1894 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_VHRT1894 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_VHRT1894 INTO WA_VHRT1894.


*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_VHRT1894_STR, 
MANDT TYPE STRING,
TABNR TYPE STRING,
TABSEQNR TYPE STRING,
PAID_INBRIN TYPE STRING,
BRIN_SEQ TYPE STRING,
INITAMT TYPE STRING,
VALUTA_INIT TYPE STRING,
INSTAMT TYPE STRING,
VALUTA_INST TYPE STRING,
PRF_INSTATUS TYPE STRING,
RECEIV_BY TYPE STRING,
RECEIPT_DATE TYPE STRING,
INCANCEL_BY TYPE STRING,
INCANCEL_ON TYPE STRING,
TOTAL_AMT TYPE STRING,
VALUTA_TOT TYPE STRING,
INST_BRIN TYPE STRING,
PRF_OUTSTATUS TYPE STRING,
REG_BY TYPE STRING,
REG_DATE TYPE STRING,
OUTCANCEL_BY TYPE STRING,
OUTCANCEL_ON TYPE STRING,
LEGAL_TUTFEE TYPE STRING,
VALUTA_LEGLFEE TYPE STRING,
INST_TUTFEE TYPE STRING,
VALUTA_INSTFEE TYPE STRING,
PRF_SOURCE TYPE STRING,
IN_LGLFEE_BEGDA TYPE STRING,
IN_LGLFEE_ENDA TYPE STRING,
IN_INSTFEE_BEGDA TYPE STRING,
IN_INSTFEE_ENDA TYPE STRING,
AMOUNT_EXEMPT TYPE STRING,
AMT_EXEMPT_CKY TYPE STRING,
DECISION TYPE STRING,
AMT_EMPT_BEGDA TYPE STRING,
AMT_EMPT_ENDA TYPE STRING,
APPR_REJ_REASON TYPE STRING,
MSG_REC_DATE TYPE STRING,
MSG_REC_TIME TYPE STRING,
MSG_SENT_STAT TYPE STRING,
MSG_SENT_BY TYPE STRING,
MSG_SENT_DATE TYPE STRING,
MSG_SENT_TIME TYPE STRING,
MSG_LOG TYPE STRING,
UPDATE_REASON TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VHRT1894_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_VHRT1894_STR-MANDT sy-vline 
WA_VHRT1894_STR-TABNR sy-vline 
WA_VHRT1894_STR-TABSEQNR sy-vline 
WA_VHRT1894_STR-PAID_INBRIN sy-vline 
WA_VHRT1894_STR-BRIN_SEQ sy-vline 
WA_VHRT1894_STR-INITAMT sy-vline 
WA_VHRT1894_STR-VALUTA_INIT sy-vline 
WA_VHRT1894_STR-INSTAMT sy-vline 
WA_VHRT1894_STR-VALUTA_INST sy-vline 
WA_VHRT1894_STR-PRF_INSTATUS sy-vline 
WA_VHRT1894_STR-RECEIV_BY sy-vline 
WA_VHRT1894_STR-RECEIPT_DATE sy-vline 
WA_VHRT1894_STR-INCANCEL_BY sy-vline 
WA_VHRT1894_STR-INCANCEL_ON sy-vline 
WA_VHRT1894_STR-TOTAL_AMT sy-vline 
WA_VHRT1894_STR-VALUTA_TOT sy-vline 
WA_VHRT1894_STR-INST_BRIN sy-vline 
WA_VHRT1894_STR-PRF_OUTSTATUS sy-vline 
WA_VHRT1894_STR-REG_BY sy-vline 
WA_VHRT1894_STR-REG_DATE sy-vline 
WA_VHRT1894_STR-OUTCANCEL_BY sy-vline 
WA_VHRT1894_STR-OUTCANCEL_ON sy-vline 
WA_VHRT1894_STR-LEGAL_TUTFEE sy-vline 
WA_VHRT1894_STR-VALUTA_LEGLFEE sy-vline 
WA_VHRT1894_STR-INST_TUTFEE sy-vline 
WA_VHRT1894_STR-VALUTA_INSTFEE sy-vline 
WA_VHRT1894_STR-PRF_SOURCE sy-vline 
WA_VHRT1894_STR-IN_LGLFEE_BEGDA sy-vline 
WA_VHRT1894_STR-IN_LGLFEE_ENDA sy-vline 
WA_VHRT1894_STR-IN_INSTFEE_BEGDA sy-vline 
WA_VHRT1894_STR-IN_INSTFEE_ENDA sy-vline 
WA_VHRT1894_STR-AMOUNT_EXEMPT sy-vline 
WA_VHRT1894_STR-AMT_EXEMPT_CKY sy-vline 
WA_VHRT1894_STR-DECISION sy-vline 
WA_VHRT1894_STR-AMT_EMPT_BEGDA sy-vline 
WA_VHRT1894_STR-AMT_EMPT_ENDA sy-vline 
WA_VHRT1894_STR-APPR_REJ_REASON sy-vline 
WA_VHRT1894_STR-MSG_REC_DATE sy-vline 
WA_VHRT1894_STR-MSG_REC_TIME sy-vline 
WA_VHRT1894_STR-MSG_SENT_STAT sy-vline 
WA_VHRT1894_STR-MSG_SENT_BY sy-vline 
WA_VHRT1894_STR-MSG_SENT_DATE sy-vline 
WA_VHRT1894_STR-MSG_SENT_TIME sy-vline 
WA_VHRT1894_STR-MSG_LOG sy-vline 
WA_VHRT1894_STR-UPDATE_REASON sy-vline 
WA_VHRT1894_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.