ABAP Select data from SAP table /TMF/HDSNCAT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /TMF/HDSNCAT 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 /TMF/HDSNCAT. 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 /TMF/HDSNCAT 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_/TMF/HDSNCAT TYPE STANDARD TABLE OF /TMF/HDSNCAT,
      WA_/TMF/HDSNCAT TYPE /TMF/HDSNCAT,
      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: </TMF/HDSNCAT> TYPE /TMF/HDSNCAT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /TMF/HDSNCAT
  INTO TABLE IT_/TMF/HDSNCAT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /TMF/HDSNCAT
*  INTO TABLE @DATA(IT_/TMF/HDSNCAT2).
*--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_/TMF/HDSNCAT INDEX 1 INTO DATA(WA_/TMF/HDSNCAT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/TMF/HDSNCAT ASSIGNING </TMF/HDSNCAT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</TMF/HDSNCAT>-MANDT = 1.
</TMF/HDSNCAT>-ID_EVENTO = 1.
</TMF/HDSNCAT>-RECORD_ID = 1.
</TMF/HDSNCAT>-TP_REGISTRADOR = 1.
</TMF/HDSNCAT>-TP_INSC_REGISTRADOR = 1.

ENDLOOP.

LOOP AT IT_/TMF/HDSNCAT INTO WA_/TMF/HDSNCAT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/TMF/HDSNCAT-NR_INSC_REGISTRADOR, sy-vline,
  WA_/TMF/HDSNCAT-DT_ACID, sy-vline,
  WA_/TMF/HDSNCAT-TP_ACID, sy-vline,
  WA_/TMF/HDSNCAT-HR_ACID, sy-vline,
  WA_/TMF/HDSNCAT-HRS_TRAB_ANTES_ACID, sy-vline,
  WA_/TMF/HDSNCAT-TP_CAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/TMF/HDSNCAT 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_/TMF/HDSNCAT 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_/TMF/HDSNCAT INTO WA_/TMF/HDSNCAT.


*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_/TMF/HDSNCAT_STR, 
MANDT TYPE STRING,
ID_EVENTO TYPE STRING,
RECORD_ID TYPE STRING,
TP_REGISTRADOR TYPE STRING,
TP_INSC_REGISTRADOR TYPE STRING,
NR_INSC_REGISTRADOR TYPE STRING,
DT_ACID TYPE STRING,
TP_ACID TYPE STRING,
HR_ACID TYPE STRING,
HRS_TRAB_ANTES_ACID TYPE STRING,
TP_CAT TYPE STRING,
IND_CAT_PARCIAL TYPE STRING,
IND_CAT_OBITO TYPE STRING,
DT_OBITO TYPE STRING,
IND_COMUN_POLICIA TYPE STRING,
COD_SIT_GERADORA TYPE STRING,
INICIAT_CAT TYPE STRING,
OBSERVACAO TYPE STRING,
TP_LOCAL TYPE STRING,
DSC_LOCAL TYPE STRING,
DSC_LOGRAD TYPE STRING,
NR_LOGRAD TYPE STRING,
COD_MUNIC TYPE STRING,
UF TYPE STRING,
CNPJ_LOCAL_ACID TYPE STRING,
PAIS TYPE STRING,
COD_POSTAL TYPE STRING,
COD_CNES TYPE STRING,
DT_ATENDIMENTO TYPE STRING,
HR_ATENDIMENTO TYPE STRING,
IND_INTERNACAO TYPE STRING,
DUR_TRAT TYPE STRING,
IND_AFAST TYPE STRING,
DSC_LESAO TYPE STRING,
DSC_COMP_LESAO TYPE STRING,
DIAG_PROVAVEL TYPE STRING,
COD_CID TYPE STRING,
OBS_ATESTADO TYPE STRING,
NM_EMIT TYPE STRING,
IDE_OC TYPE STRING,
NR_OC TYPE STRING,
UF_OC TYPE STRING,
DT_CAT_ORIG TYPE STRING,
NR_CAT_ORIG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/TMF/HDSNCAT_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_/TMF/HDSNCAT_STR-MANDT sy-vline 
WA_/TMF/HDSNCAT_STR-ID_EVENTO sy-vline 
WA_/TMF/HDSNCAT_STR-RECORD_ID sy-vline 
WA_/TMF/HDSNCAT_STR-TP_REGISTRADOR sy-vline 
WA_/TMF/HDSNCAT_STR-TP_INSC_REGISTRADOR sy-vline 
WA_/TMF/HDSNCAT_STR-NR_INSC_REGISTRADOR sy-vline 
WA_/TMF/HDSNCAT_STR-DT_ACID sy-vline 
WA_/TMF/HDSNCAT_STR-TP_ACID sy-vline 
WA_/TMF/HDSNCAT_STR-HR_ACID sy-vline 
WA_/TMF/HDSNCAT_STR-HRS_TRAB_ANTES_ACID sy-vline 
WA_/TMF/HDSNCAT_STR-TP_CAT sy-vline 
WA_/TMF/HDSNCAT_STR-IND_CAT_PARCIAL sy-vline 
WA_/TMF/HDSNCAT_STR-IND_CAT_OBITO sy-vline 
WA_/TMF/HDSNCAT_STR-DT_OBITO sy-vline 
WA_/TMF/HDSNCAT_STR-IND_COMUN_POLICIA sy-vline 
WA_/TMF/HDSNCAT_STR-COD_SIT_GERADORA sy-vline 
WA_/TMF/HDSNCAT_STR-INICIAT_CAT sy-vline 
WA_/TMF/HDSNCAT_STR-OBSERVACAO sy-vline 
WA_/TMF/HDSNCAT_STR-TP_LOCAL sy-vline 
WA_/TMF/HDSNCAT_STR-DSC_LOCAL sy-vline 
WA_/TMF/HDSNCAT_STR-DSC_LOGRAD sy-vline 
WA_/TMF/HDSNCAT_STR-NR_LOGRAD sy-vline 
WA_/TMF/HDSNCAT_STR-COD_MUNIC sy-vline 
WA_/TMF/HDSNCAT_STR-UF sy-vline 
WA_/TMF/HDSNCAT_STR-CNPJ_LOCAL_ACID sy-vline 
WA_/TMF/HDSNCAT_STR-PAIS sy-vline 
WA_/TMF/HDSNCAT_STR-COD_POSTAL sy-vline 
WA_/TMF/HDSNCAT_STR-COD_CNES sy-vline 
WA_/TMF/HDSNCAT_STR-DT_ATENDIMENTO sy-vline 
WA_/TMF/HDSNCAT_STR-HR_ATENDIMENTO sy-vline 
WA_/TMF/HDSNCAT_STR-IND_INTERNACAO sy-vline 
WA_/TMF/HDSNCAT_STR-DUR_TRAT sy-vline 
WA_/TMF/HDSNCAT_STR-IND_AFAST sy-vline 
WA_/TMF/HDSNCAT_STR-DSC_LESAO sy-vline 
WA_/TMF/HDSNCAT_STR-DSC_COMP_LESAO sy-vline 
WA_/TMF/HDSNCAT_STR-DIAG_PROVAVEL sy-vline 
WA_/TMF/HDSNCAT_STR-COD_CID sy-vline 
WA_/TMF/HDSNCAT_STR-OBS_ATESTADO sy-vline 
WA_/TMF/HDSNCAT_STR-NM_EMIT sy-vline 
WA_/TMF/HDSNCAT_STR-IDE_OC sy-vline 
WA_/TMF/HDSNCAT_STR-NR_OC sy-vline 
WA_/TMF/HDSNCAT_STR-UF_OC sy-vline 
WA_/TMF/HDSNCAT_STR-DT_CAT_ORIG sy-vline 
WA_/TMF/HDSNCAT_STR-NR_CAT_ORIG sy-vline      INTO ld_text SEPARATED BY SPACE.

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