ABAP Select data from SAP table V_T7QA90 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T7QA90 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 V_T7QA90. 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 V_T7QA90 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_V_T7QA90 TYPE STANDARD TABLE OF V_T7QA90,
      WA_V_T7QA90 TYPE V_T7QA90,
      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: <V_T7QA90> TYPE V_T7QA90.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T7QA90.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T7QA90
  INTO TABLE IT_V_T7QA90.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T7QA90
*  INTO TABLE @DATA(IT_V_T7QA902).
*--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_V_T7QA90 INDEX 1 INTO DATA(WA_V_T7QA902).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T7QA90 ASSIGNING <V_T7QA90>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T7QA90>-MANDT = 1.
<V_T7QA90>-CRIID = 1.
<V_T7QA90>-SEQNO = 1.
<V_T7QA90>-INFTY = 1.
<V_T7QA90>-SUBTY = 1.

ENDLOOP.

LOOP AT IT_V_T7QA90 INTO WA_V_T7QA90.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T7QA90-OBJPS, sy-vline,
  WA_V_T7QA90-FIELD, sy-vline,
  WA_V_T7QA90-MINVAL, sy-vline,
  WA_V_T7QA90-MAXVAL, sy-vline,
  WA_V_T7QA90-ELITXT, sy-vline,
  WA_V_T7QA90-BADI_IMPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T7QA90 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_V_T7QA90 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_V_T7QA90 INTO WA_V_T7QA90.


*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_V_T7QA90_STR, 
MANDT TYPE STRING,
CRIID TYPE STRING,
SEQNO TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
FIELD TYPE STRING,
MINVAL TYPE STRING,
MAXVAL TYPE STRING,
ELITXT TYPE STRING,
BADI_IMPL TYPE STRING,
BADI_PAR1 TYPE STRING,
BADI_PAR2 TYPE STRING,
BADI_PAR3 TYPE STRING,
BADI_PAR4 TYPE STRING,
BADI_PAR5 TYPE STRING,
BADI_PAR6 TYPE STRING,
BADI_PAR7 TYPE STRING,
BADI_PAR8 TYPE STRING,
CFGTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T7QA90_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_V_T7QA90_STR-MANDT sy-vline 
WA_V_T7QA90_STR-CRIID sy-vline 
WA_V_T7QA90_STR-SEQNO sy-vline 
WA_V_T7QA90_STR-INFTY sy-vline 
WA_V_T7QA90_STR-SUBTY sy-vline 
WA_V_T7QA90_STR-OBJPS sy-vline 
WA_V_T7QA90_STR-FIELD sy-vline 
WA_V_T7QA90_STR-MINVAL sy-vline 
WA_V_T7QA90_STR-MAXVAL sy-vline 
WA_V_T7QA90_STR-ELITXT sy-vline 
WA_V_T7QA90_STR-BADI_IMPL sy-vline 
WA_V_T7QA90_STR-BADI_PAR1 sy-vline 
WA_V_T7QA90_STR-BADI_PAR2 sy-vline 
WA_V_T7QA90_STR-BADI_PAR3 sy-vline 
WA_V_T7QA90_STR-BADI_PAR4 sy-vline 
WA_V_T7QA90_STR-BADI_PAR5 sy-vline 
WA_V_T7QA90_STR-BADI_PAR6 sy-vline 
WA_V_T7QA90_STR-BADI_PAR7 sy-vline 
WA_V_T7QA90_STR-BADI_PAR8 sy-vline 
WA_V_T7QA90_STR-CFGTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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