ABAP Select data from SAP table SGT_DYNCAT_V_STO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SGT_DYNCAT_V_STO
*  INTO TABLE @DATA(IT_SGT_DYNCAT_V_STO2).
*--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_SGT_DYNCAT_V_STO INDEX 1 INTO DATA(WA_SGT_DYNCAT_V_STO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SGT_DYNCAT_V_STO>-MANDT = 1.
<SGT_DYNCAT_V_STO>-SGT_RNUM = 1.
<SGT_DYNCAT_V_STO>-SGT_COVS = 1.
<SGT_DYNCAT_V_STO>-SGT_APPL = 1.
<SGT_DYNCAT_V_STO>-BEGDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SGT_DYNCAT_V_STO-ENDDA, sy-vline,
  WA_SGT_DYNCAT_V_STO-BSART, sy-vline,
  WA_SGT_DYNCAT_V_STO-RESWK, sy-vline,
  WA_SGT_DYNCAT_V_STO-EKORG, sy-vline,
  WA_SGT_DYNCAT_V_STO-EKGRP, sy-vline,
  WA_SGT_DYNCAT_V_STO-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SGT_DYNCAT_V_STO 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_SGT_DYNCAT_V_STO 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_SGT_DYNCAT_V_STO INTO WA_SGT_DYNCAT_V_STO.


*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_SGT_DYNCAT_V_STO_STR, 
MANDT TYPE STRING,
SGT_RNUM TYPE STRING,
SGT_COVS TYPE STRING,
SGT_APPL TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
BSART TYPE STRING,
RESWK TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
WERKS TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
SGT_CATV TYPE STRING,
SGT_DYNSRC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SGT_DYNCAT_V_STO_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_SGT_DYNCAT_V_STO_STR-MANDT sy-vline 
WA_SGT_DYNCAT_V_STO_STR-SGT_RNUM sy-vline 
WA_SGT_DYNCAT_V_STO_STR-SGT_COVS sy-vline 
WA_SGT_DYNCAT_V_STO_STR-SGT_APPL sy-vline 
WA_SGT_DYNCAT_V_STO_STR-BEGDA sy-vline 
WA_SGT_DYNCAT_V_STO_STR-ENDDA sy-vline 
WA_SGT_DYNCAT_V_STO_STR-BSART sy-vline 
WA_SGT_DYNCAT_V_STO_STR-RESWK sy-vline 
WA_SGT_DYNCAT_V_STO_STR-EKORG sy-vline 
WA_SGT_DYNCAT_V_STO_STR-EKGRP sy-vline 
WA_SGT_DYNCAT_V_STO_STR-WERKS sy-vline 
WA_SGT_DYNCAT_V_STO_STR-VKORG sy-vline 
WA_SGT_DYNCAT_V_STO_STR-VTWEG sy-vline 
WA_SGT_DYNCAT_V_STO_STR-SPART sy-vline 
WA_SGT_DYNCAT_V_STO_STR-SGT_CATV sy-vline 
WA_SGT_DYNCAT_V_STO_STR-SGT_DYNSRC sy-vline      INTO ld_text SEPARATED BY SPACE.

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