ABAP Select data from SAP table DB2QVLSSEC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB2QVLSSEC 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 DB2QVLSSEC. 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 DB2QVLSSEC 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_DB2QVLSSEC TYPE STANDARD TABLE OF DB2QVLSSEC,
      WA_DB2QVLSSEC TYPE DB2QVLSSEC,
      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: <DB2QVLSSEC> TYPE DB2QVLSSEC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB2QVLSSEC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB2QVLSSEC
  INTO TABLE IT_DB2QVLSSEC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB2QVLSSEC
*  INTO TABLE @DATA(IT_DB2QVLSSEC2).
*--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_DB2QVLSSEC INDEX 1 INTO DATA(WA_DB2QVLSSEC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB2QVLSSEC ASSIGNING <DB2QVLSSEC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB2QVLSSEC>-QVLSLC01 = 1.
<DB2QVLSSEC>-QVLSLC02 = 1.
<DB2QVLSSEC>-QVLSLC03 = 1.
<DB2QVLSSEC>-QVLSLC04 = 1.
<DB2QVLSSEC>-QVLSLC05 = 1.

ENDLOOP.

LOOP AT IT_DB2QVLSSEC INTO WA_DB2QVLSSEC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB2QVLSSEC-QVLSLC06, sy-vline,
  WA_DB2QVLSSEC-QVLSLC07, sy-vline,
  WA_DB2QVLSSEC-QVLSLC08, sy-vline,
  WA_DB2QVLSSEC-QVLSLC09, sy-vline,
  WA_DB2QVLSSEC-QVLSLC10, sy-vline,
  WA_DB2QVLSSEC-QVLSLC11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB2QVLSSEC 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_DB2QVLSSEC 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_DB2QVLSSEC INTO WA_DB2QVLSSEC.


*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_DB2QVLSSEC_STR, 
QVLSLC01 TYPE STRING,
QVLSLC02 TYPE STRING,
QVLSLC03 TYPE STRING,
QVLSLC04 TYPE STRING,
QVLSLC05 TYPE STRING,
QVLSLC06 TYPE STRING,
QVLSLC07 TYPE STRING,
QVLSLC08 TYPE STRING,
QVLSLC09 TYPE STRING,
QVLSLC10 TYPE STRING,
QVLSLC11 TYPE STRING,
QVLSLC12 TYPE STRING,
QVLSLC13 TYPE STRING,
QVLSLC14 TYPE STRING,
QVLSLC15 TYPE STRING,
QVLSLC16 TYPE STRING,
QVLSLC17 TYPE STRING,
QVLSLC18 TYPE STRING,
QVLSLC19 TYPE STRING,
QVLSLC20 TYPE STRING,
QVLSLC21 TYPE STRING,
QVLSLC22 TYPE STRING,
QVLSLC23 TYPE STRING,
QVLSLC24 TYPE STRING,
QVLSLC25 TYPE STRING,
QVLSLC26 TYPE STRING,
QVLSLC27 TYPE STRING,
QVLSLC28 TYPE STRING,
QVLSLC29 TYPE STRING,
QVLSLC30 TYPE STRING,
QVLSLC31 TYPE STRING,
QVLSLC32 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB2QVLSSEC_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_DB2QVLSSEC_STR-QVLSLC01 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC02 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC03 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC04 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC05 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC06 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC07 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC08 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC09 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC10 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC11 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC12 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC13 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC14 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC15 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC16 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC17 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC18 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC19 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC20 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC21 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC22 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC23 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC24 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC25 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC26 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC27 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC28 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC29 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC30 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC31 sy-vline 
WA_DB2QVLSSEC_STR-QVLSLC32 sy-vline      INTO ld_text SEPARATED BY SPACE.

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