ABAP Select data from SAP table TOES_HA_MAINDATA_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TOES_HA_MAINDATA_ATTR
*  INTO TABLE @DATA(IT_TOES_HA_MAINDATA_ATTR2).
*--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_TOES_HA_MAINDATA_ATTR INDEX 1 INTO DATA(WA_TOES_HA_MAINDATA_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TOES_HA_MAINDATA_ATTR>-RISK_CAT = 1.
<TOES_HA_MAINDATA_ATTR>-RISKFREE_CURR_CAT = 1.
<TOES_HA_MAINDATA_ATTR>-RISKFREE_MAIN_CURR = 1.
<TOES_HA_MAINDATA_ATTR>-EXPOS_AGG_LEVEL = 1.
<TOES_HA_MAINDATA_ATTR>-TIME_PATTERN_CAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TOES_HA_MAINDATA_ATTR-PERIOD_TYPE, sy-vline,
  WA_TOES_HA_MAINDATA_ATTR-NUMBER_OF_PERIODS, sy-vline,
  WA_TOES_HA_MAINDATA_ATTR-FILL_UP_PERIOD, sy-vline,
  WA_TOES_HA_MAINDATA_ATTR-FISCAL_YEAR, sy-vline,
  WA_TOES_HA_MAINDATA_ATTR-PERIOD_LENGTH, sy-vline,
  WA_TOES_HA_MAINDATA_ATTR-TARGET_QUOTA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TOES_HA_MAINDATA_ATTR 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_TOES_HA_MAINDATA_ATTR 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_TOES_HA_MAINDATA_ATTR INTO WA_TOES_HA_MAINDATA_ATTR.


*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_TOES_HA_MAINDATA_ATTR_STR, 
RISK_CAT TYPE STRING,
RISKFREE_CURR_CAT TYPE STRING,
RISKFREE_MAIN_CURR TYPE STRING,
EXPOS_AGG_LEVEL TYPE STRING,
TIME_PATTERN_CAT TYPE STRING,
PERIOD_TYPE TYPE STRING,
NUMBER_OF_PERIODS TYPE STRING,
FILL_UP_PERIOD TYPE STRING,
FISCAL_YEAR TYPE STRING,
PERIOD_LENGTH TYPE STRING,
TARGET_QUOTA TYPE STRING,
ACC_FLAG TYPE STRING,
PRODUCT_TYPE TYPE STRING,
TRADING_PLATFORM TYPE STRING,
EXP_ITEM_DEF TYPE STRING,
RELEVANT_DATE_FX_OPTION TYPE STRING,
HEDGING_EFFECT_INSTR TYPE STRING,
RELEVANT_DATE_FOR_NONDELIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TOES_HA_MAINDATA_ATTR_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_TOES_HA_MAINDATA_ATTR_STR-RISK_CAT sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-RISKFREE_CURR_CAT sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-RISKFREE_MAIN_CURR sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-EXPOS_AGG_LEVEL sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-TIME_PATTERN_CAT sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-PERIOD_TYPE sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-NUMBER_OF_PERIODS sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-FILL_UP_PERIOD sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-FISCAL_YEAR sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-PERIOD_LENGTH sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-TARGET_QUOTA sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-ACC_FLAG sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-PRODUCT_TYPE sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-TRADING_PLATFORM sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-EXP_ITEM_DEF sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-RELEVANT_DATE_FX_OPTION sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-HEDGING_EFFECT_INSTR sy-vline 
WA_TOES_HA_MAINDATA_ATTR_STR-RELEVANT_DATE_FOR_NONDELIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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