ABAP Select data from SAP table Q2010 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q2010 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 Q2010. 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 Q2010 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_Q2010 TYPE STANDARD TABLE OF Q2010,
      WA_Q2010 TYPE Q2010,
      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: <Q2010> TYPE Q2010.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q2010.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q2010
  INTO TABLE IT_Q2010.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q2010
*  INTO TABLE @DATA(IT_Q20102).
*--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_Q2010 INDEX 1 INTO DATA(WA_Q20102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q2010 ASSIGNING <Q2010>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q2010>-EITXT = 1.
<Q2010>-DAYNR = 1.
<Q2010>-WEEKN = 1.
<Q2010>-KTART = 1.
<Q2010>-KONTG = 1.

ENDLOOP.

LOOP AT IT_Q2010 INTO WA_Q2010.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q2010-HRTOT, sy-vline,
  WA_Q2010-BEGWK, sy-vline,
  WA_Q2010-ENDWK, sy-vline,
  WA_Q2010-NUM01, sy-vline,
  WA_Q2010-DAY01, sy-vline,
  WA_Q2010-HRS01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q2010 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_Q2010 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_Q2010 INTO WA_Q2010.


*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_Q2010_STR, 
EITXT TYPE STRING,
DAYNR TYPE STRING,
WEEKN TYPE STRING,
KTART TYPE STRING,
KONTG TYPE STRING,
HRTOT TYPE STRING,
BEGWK TYPE STRING,
ENDWK TYPE STRING,
NUM01 TYPE STRING,
DAY01 TYPE STRING,
HRS01 TYPE STRING,
WEK01 TYPE STRING,
DAT01 TYPE STRING,
NUM02 TYPE STRING,
DAY02 TYPE STRING,
HRS02 TYPE STRING,
WEK02 TYPE STRING,
DAT02 TYPE STRING,
NUM03 TYPE STRING,
DAY03 TYPE STRING,
HRS03 TYPE STRING,
WEK03 TYPE STRING,
DAT03 TYPE STRING,
NUM04 TYPE STRING,
DAY04 TYPE STRING,
HRS04 TYPE STRING,
WEK04 TYPE STRING,
DAT04 TYPE STRING,
NUM05 TYPE STRING,
DAY05 TYPE STRING,
HRS05 TYPE STRING,
WEK05 TYPE STRING,
DAT05 TYPE STRING,
NUM06 TYPE STRING,
DAY06 TYPE STRING,
HRS06 TYPE STRING,
WEK06 TYPE STRING,
DAT06 TYPE STRING,
NUM07 TYPE STRING,
DAY07 TYPE STRING,
HRS07 TYPE STRING,
WEK07 TYPE STRING,
DAT07 TYPE STRING,
MOLGA TYPE STRING,
LGMUS TYPE STRING,
SLASH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q2010_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_Q2010_STR-EITXT sy-vline 
WA_Q2010_STR-DAYNR sy-vline 
WA_Q2010_STR-WEEKN sy-vline 
WA_Q2010_STR-KTART sy-vline 
WA_Q2010_STR-KONTG sy-vline 
WA_Q2010_STR-HRTOT sy-vline 
WA_Q2010_STR-BEGWK sy-vline 
WA_Q2010_STR-ENDWK sy-vline 
WA_Q2010_STR-NUM01 sy-vline 
WA_Q2010_STR-DAY01 sy-vline 
WA_Q2010_STR-HRS01 sy-vline 
WA_Q2010_STR-WEK01 sy-vline 
WA_Q2010_STR-DAT01 sy-vline 
WA_Q2010_STR-NUM02 sy-vline 
WA_Q2010_STR-DAY02 sy-vline 
WA_Q2010_STR-HRS02 sy-vline 
WA_Q2010_STR-WEK02 sy-vline 
WA_Q2010_STR-DAT02 sy-vline 
WA_Q2010_STR-NUM03 sy-vline 
WA_Q2010_STR-DAY03 sy-vline 
WA_Q2010_STR-HRS03 sy-vline 
WA_Q2010_STR-WEK03 sy-vline 
WA_Q2010_STR-DAT03 sy-vline 
WA_Q2010_STR-NUM04 sy-vline 
WA_Q2010_STR-DAY04 sy-vline 
WA_Q2010_STR-HRS04 sy-vline 
WA_Q2010_STR-WEK04 sy-vline 
WA_Q2010_STR-DAT04 sy-vline 
WA_Q2010_STR-NUM05 sy-vline 
WA_Q2010_STR-DAY05 sy-vline 
WA_Q2010_STR-HRS05 sy-vline 
WA_Q2010_STR-WEK05 sy-vline 
WA_Q2010_STR-DAT05 sy-vline 
WA_Q2010_STR-NUM06 sy-vline 
WA_Q2010_STR-DAY06 sy-vline 
WA_Q2010_STR-HRS06 sy-vline 
WA_Q2010_STR-WEK06 sy-vline 
WA_Q2010_STR-DAT06 sy-vline 
WA_Q2010_STR-NUM07 sy-vline 
WA_Q2010_STR-DAY07 sy-vline 
WA_Q2010_STR-HRS07 sy-vline 
WA_Q2010_STR-WEK07 sy-vline 
WA_Q2010_STR-DAT07 sy-vline 
WA_Q2010_STR-MOLGA sy-vline 
WA_Q2010_STR-LGMUS sy-vline 
WA_Q2010_STR-SLASH sy-vline      INTO ld_text SEPARATED BY SPACE.

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