ABAP Select data from SAP table QMDYNTXT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QMDYNTXT
*  INTO TABLE @DATA(IT_QMDYNTXT2).
*--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_QMDYNTXT INDEX 1 INTO DATA(WA_QMDYNTXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QMDYNTXT>-US3_TEXT = 1.
<QMDYNTXT>-US4_TEXT = 1.
<QMDYNTXT>-US5_TEXT = 1.
<QMDYNTXT>-US6_TEXT = 1.
<QMDYNTXT>-U01_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QMDYNTXT-U02_TEXT, sy-vline,
  WA_QMDYNTXT-U03_TEXT, sy-vline,
  WA_QMDYNTXT-U10_TEXT, sy-vline,
  WA_QMDYNTXT-U11_TEXT, sy-vline,
  WA_QMDYNTXT-U12_TEXT, sy-vline,
  WA_QMDYNTXT-U13_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QMDYNTXT 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_QMDYNTXT 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_QMDYNTXT INTO WA_QMDYNTXT.


*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_QMDYNTXT_STR, 
US3_TEXT TYPE STRING,
US4_TEXT TYPE STRING,
US5_TEXT TYPE STRING,
US6_TEXT TYPE STRING,
U01_TEXT TYPE STRING,
U02_TEXT TYPE STRING,
U03_TEXT TYPE STRING,
U10_TEXT TYPE STRING,
U11_TEXT TYPE STRING,
U12_TEXT TYPE STRING,
U13_TEXT TYPE STRING,
U14_TEXT TYPE STRING,
U15_TEXT TYPE STRING,
U16_TEXT TYPE STRING,
U17_TEXT TYPE STRING,
U18_TEXT TYPE STRING,
U19_TEXT TYPE STRING,
U20_TEXT TYPE STRING,
U21_TEXT TYPE STRING,
U22_TEXT TYPE STRING,
U23_TEXT TYPE STRING,
FCODE_INACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QMDYNTXT_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_QMDYNTXT_STR-US3_TEXT sy-vline 
WA_QMDYNTXT_STR-US4_TEXT sy-vline 
WA_QMDYNTXT_STR-US5_TEXT sy-vline 
WA_QMDYNTXT_STR-US6_TEXT sy-vline 
WA_QMDYNTXT_STR-U01_TEXT sy-vline 
WA_QMDYNTXT_STR-U02_TEXT sy-vline 
WA_QMDYNTXT_STR-U03_TEXT sy-vline 
WA_QMDYNTXT_STR-U10_TEXT sy-vline 
WA_QMDYNTXT_STR-U11_TEXT sy-vline 
WA_QMDYNTXT_STR-U12_TEXT sy-vline 
WA_QMDYNTXT_STR-U13_TEXT sy-vline 
WA_QMDYNTXT_STR-U14_TEXT sy-vline 
WA_QMDYNTXT_STR-U15_TEXT sy-vline 
WA_QMDYNTXT_STR-U16_TEXT sy-vline 
WA_QMDYNTXT_STR-U17_TEXT sy-vline 
WA_QMDYNTXT_STR-U18_TEXT sy-vline 
WA_QMDYNTXT_STR-U19_TEXT sy-vline 
WA_QMDYNTXT_STR-U20_TEXT sy-vline 
WA_QMDYNTXT_STR-U21_TEXT sy-vline 
WA_QMDYNTXT_STR-U22_TEXT sy-vline 
WA_QMDYNTXT_STR-U23_TEXT sy-vline 
WA_QMDYNTXT_STR-FCODE_INACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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