ABAP Select data from SAP table EHS00S_VACCH_API into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EHS00S_VACCH_API 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 EHS00S_VACCH_API. 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 EHS00S_VACCH_API 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_EHS00S_VACCH_API TYPE STANDARD TABLE OF EHS00S_VACCH_API,
      WA_EHS00S_VACCH_API TYPE EHS00S_VACCH_API,
      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: <EHS00S_VACCH_API> TYPE EHS00S_VACCH_API.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EHS00S_VACCH_API.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EHS00S_VACCH_API
  INTO TABLE IT_EHS00S_VACCH_API.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHS00S_VACCH_API
*  INTO TABLE @DATA(IT_EHS00S_VACCH_API2).
*--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_EHS00S_VACCH_API INDEX 1 INTO DATA(WA_EHS00S_VACCH_API2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EHS00S_VACCH_API ASSIGNING <EHS00S_VACCH_API>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHS00S_VACCH_API>-ERRORMODE = 1.
<EHS00S_VACCH_API>-ERRORINFO = 1.
<EHS00S_VACCH_API>-ERRORCLASS = 1.
<EHS00S_VACCH_API>-ERRORPARAM = 1.
<EHS00S_VACCH_API>-LOGLOCKMOD = 1.

ENDLOOP.

LOOP AT IT_EHS00S_VACCH_API INTO WA_EHS00S_VACCH_API.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHS00S_VACCH_API-EXTINFO, sy-vline,
  WA_EHS00S_VACCH_API-LINEMOD, sy-vline,
  WA_EHS00S_VACCH_API-MANDT, sy-vline,
  WA_EHS00S_VACCH_API-RECN, sy-vline,
  WA_EHS00S_VACCH_API-ACTN, sy-vline,
  WA_EHS00S_VACCH_API-VALFR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHS00S_VACCH_API 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_EHS00S_VACCH_API 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_EHS00S_VACCH_API INTO WA_EHS00S_VACCH_API.


*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_EHS00S_VACCH_API-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHS00S_VACCH_API-RECN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHS00S_VACCH_API-ACTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHS00S_VACCH_API-ACTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHS00S_VACCH_API-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHS00S_VACCH_API-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OWNID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHS00S_VACCH_API-OWNID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHS00S_VACCH_API-OWNID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNROOT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHS00S_VACCH_API-RECNROOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHS00S_VACCH_API-RECNROOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CHRID, internal->external for field VACC_ID
CALL FUNCTION 'CONVERSION_EXIT_CHRID_OUTPUT'
  EXPORTING
    input =                      WA_EHS00S_VACCH_API-VACC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHS00S_VACCH_API-VACC_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VACC_PHYSICIAN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHS00S_VACCH_API-VACC_PHYSICIAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHS00S_VACCH_API-VACC_PHYSICIAN.
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_EHS00S_VACCH_API_STR, 
ERRORMODE TYPE STRING,
ERRORINFO TYPE STRING,
ERRORCLASS TYPE STRING,
ERRORPARAM TYPE STRING,
LOGLOCKMOD TYPE STRING,
EXTINFO TYPE STRING,
LINEMOD TYPE STRING,
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,
CRDTIMESTAMP TYPE STRING,
UPDTIMESTAMP TYPE STRING,
PERNR TYPE STRING,
SERVICENO TYPE STRING,
PGROUP TYPE STRING,
PNUMBER TYPE STRING,
SRV_PROTTYPE TYPE STRING,
VACC_ID TYPE STRING,
VACC_DATE TYPE STRING,
VACC_STATUS TYPE STRING,
BRAND_NAME TYPE STRING,
BATCHNO TYPE STRING,
VACC_COMMENT TYPE STRING,
VACC_PHYSICIAN TYPE STRING,
VACC_PHYSFLG TYPE STRING,
PRIVATFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHS00S_VACCH_API_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_EHS00S_VACCH_API_STR-ERRORMODE sy-vline 
WA_EHS00S_VACCH_API_STR-ERRORINFO sy-vline 
WA_EHS00S_VACCH_API_STR-ERRORCLASS sy-vline 
WA_EHS00S_VACCH_API_STR-ERRORPARAM sy-vline 
WA_EHS00S_VACCH_API_STR-LOGLOCKMOD sy-vline 
WA_EHS00S_VACCH_API_STR-EXTINFO sy-vline 
WA_EHS00S_VACCH_API_STR-LINEMOD sy-vline 
WA_EHS00S_VACCH_API_STR-MANDT sy-vline 
WA_EHS00S_VACCH_API_STR-RECN sy-vline 
WA_EHS00S_VACCH_API_STR-ACTN sy-vline 
WA_EHS00S_VACCH_API_STR-VALFR sy-vline 
WA_EHS00S_VACCH_API_STR-VALTO sy-vline 
WA_EHS00S_VACCH_API_STR-AENNR sy-vline 
WA_EHS00S_VACCH_API_STR-DELFLG sy-vline 
WA_EHS00S_VACCH_API_STR-PARKFLG sy-vline 
WA_EHS00S_VACCH_API_STR-CRDAT sy-vline 
WA_EHS00S_VACCH_API_STR-CRNAM sy-vline 
WA_EHS00S_VACCH_API_STR-UPDDAT sy-vline 
WA_EHS00S_VACCH_API_STR-UPDNAM sy-vline 
WA_EHS00S_VACCH_API_STR-SRSID sy-vline 
WA_EHS00S_VACCH_API_STR-OWNID sy-vline 
WA_EHS00S_VACCH_API_STR-RECNROOT sy-vline 
WA_EHS00S_VACCH_API_STR-CRDTIMESTAMP sy-vline 
WA_EHS00S_VACCH_API_STR-UPDTIMESTAMP sy-vline 
WA_EHS00S_VACCH_API_STR-PERNR sy-vline 
WA_EHS00S_VACCH_API_STR-SERVICENO sy-vline 
WA_EHS00S_VACCH_API_STR-PGROUP sy-vline 
WA_EHS00S_VACCH_API_STR-PNUMBER sy-vline 
WA_EHS00S_VACCH_API_STR-SRV_PROTTYPE sy-vline 
WA_EHS00S_VACCH_API_STR-VACC_ID sy-vline 
WA_EHS00S_VACCH_API_STR-VACC_DATE sy-vline 
WA_EHS00S_VACCH_API_STR-VACC_STATUS sy-vline 
WA_EHS00S_VACCH_API_STR-BRAND_NAME sy-vline 
WA_EHS00S_VACCH_API_STR-BATCHNO sy-vline 
WA_EHS00S_VACCH_API_STR-VACC_COMMENT sy-vline 
WA_EHS00S_VACCH_API_STR-VACC_PHYSICIAN sy-vline 
WA_EHS00S_VACCH_API_STR-VACC_PHYSFLG sy-vline 
WA_EHS00S_VACCH_API_STR-PRIVATFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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