ABAP Select data from SAP table TRGV_STEP_PROC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRGV_STEP_PROC
*  INTO TABLE @DATA(IT_TRGV_STEP_PROC2).
*--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_TRGV_STEP_PROC INDEX 1 INTO DATA(WA_TRGV_STEP_PROC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRGV_STEP_PROC>-MANDT = 1.
<TRGV_STEP_PROC>-STEP_CAT = 1.
<TRGV_STEP_PROC>-STEP_PROC = 1.
<TRGV_STEP_PROC>-PRICE_TYPE = 1.
<TRGV_STEP_PROC>-CV_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRGV_STEP_PROC-RATE_CATEGORY, sy-vline,
  WA_TRGV_STEP_PROC-RULE_UP, sy-vline,
  WA_TRGV_STEP_PROC-RULE_DOWN, sy-vline,
  WA_TRGV_STEP_PROC-FLG_COSTS, sy-vline,
  WA_TRGV_STEP_PROC-RESOLVE_TI, sy-vline,
  WA_TRGV_STEP_PROC-RESOLVE_FE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRGV_STEP_PROC 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_TRGV_STEP_PROC 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_TRGV_STEP_PROC INTO WA_TRGV_STEP_PROC.


*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_TRGV_STEP_PROC_STR, 
MANDT TYPE STRING,
STEP_CAT TYPE STRING,
STEP_PROC TYPE STRING,
PRICE_TYPE TYPE STRING,
CV_TYPE TYPE STRING,
RATE_CATEGORY TYPE STRING,
RULE_UP TYPE STRING,
RULE_DOWN TYPE STRING,
FLG_COSTS TYPE STRING,
RESOLVE_TI TYPE STRING,
RESOLVE_FE TYPE STRING,
COMPUTATION_CAT TYPE STRING,
BRUTTO_NETTO TYPE STRING,
RATE_CALC_METHOD TYPE STRING,
PURCHASE_GAAP TYPE STRING,
DISSOLVE TYPE STRING,
AMORT_END TYPE STRING,
RATE_CAT_SPOTP TYPE STRING,
RATE_CAT_SPOTS TYPE STRING,
RATE_CAT_SWAPP TYPE STRING,
RATE_CAT_SWAPS TYPE STRING,
FORWARD_CAT TYPE STRING,
CROSS_VAL TYPE STRING,
STEP_PROC_TEXT TYPE STRING,
GAIN_LOSS_HANDL TYPE STRING,
RESET_TITLE_VAL TYPE STRING,
ACCRUE_COMP TYPE STRING,
SP_VAL_SEC TYPE STRING,
NPV_CATEGORY TYPE STRING,
INCL_INTEREST TYPE STRING,
EFF_INT_SAC TYPE STRING,
SULTVON TYPE STRING,
SULTBIS TYPE STRING,
AMORT_CUT TYPE STRING,
ALLOW_CALC_AMORT TYPE STRING,
VAD_AMORT TYPE STRING,
COMP_VAL TYPE STRING,
POSTING_SPEC_VAL TYPE STRING,
FX_NETTING_DEAL TYPE STRING,
CV_TYPE_START TYPE STRING,
INTEREST_RISK TYPE STRING,
CREDIT_RISK TYPE STRING,
FXRATE_RISK TYPE STRING,
PRICE_RISK TYPE STRING,
EVAL_TYP TYPE STRING,
CONV_RATE_AMORT TYPE STRING,
FLG_DIRTY_PRICE TYPE STRING,
ACCRUAL_INCL TYPE STRING,
ACCRUAL_ULTIMO TYPE STRING,
FLG_CLR_VAL_CURR TYPE STRING,
FLG_AMORT_END_EX TYPE STRING,
FLG_EXCL_TB TYPE STRING,
CUSTOM_ATTRIB TYPE STRING,
ACCRUAL_FUNCTION TYPE STRING,
FLG_HREL_LIMITED TYPE STRING,
FLG_ADJ_TRANSL4A TYPE STRING,
AFFECT_DERIV_COMP TYPE STRING,
INCL_COMP_INT TYPE STRING,
FLG_OFFSET_LOSS_ALLOWANCE TYPE STRING,
AMORT_LOG_SAVE TYPE STRING,
CUT_AMORT_CAP_INT TYPE STRING,
FLG_VAL_IN_VAL_CURR TYPE STRING,
FLG_RESET_NOT_POSSIBLE TYPE STRING,
FLG_NO_EXEC_HAC TYPE STRING,
FLG_LA_UPDATE_AT_PURCHASE TYPE STRING,
FLG_LA_INIT_AT_VCL_TRANS TYPE STRING,
FLG_FX_RESET_NOT_POSSIBLE TYPE STRING,
AMORT_KEYDATE_INCL TYPE STRING,
CPT_PERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRGV_STEP_PROC_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_TRGV_STEP_PROC_STR-MANDT sy-vline 
WA_TRGV_STEP_PROC_STR-STEP_CAT sy-vline 
WA_TRGV_STEP_PROC_STR-STEP_PROC sy-vline 
WA_TRGV_STEP_PROC_STR-PRICE_TYPE sy-vline 
WA_TRGV_STEP_PROC_STR-CV_TYPE sy-vline 
WA_TRGV_STEP_PROC_STR-RATE_CATEGORY sy-vline 
WA_TRGV_STEP_PROC_STR-RULE_UP sy-vline 
WA_TRGV_STEP_PROC_STR-RULE_DOWN sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_COSTS sy-vline 
WA_TRGV_STEP_PROC_STR-RESOLVE_TI sy-vline 
WA_TRGV_STEP_PROC_STR-RESOLVE_FE sy-vline 
WA_TRGV_STEP_PROC_STR-COMPUTATION_CAT sy-vline 
WA_TRGV_STEP_PROC_STR-BRUTTO_NETTO sy-vline 
WA_TRGV_STEP_PROC_STR-RATE_CALC_METHOD sy-vline 
WA_TRGV_STEP_PROC_STR-PURCHASE_GAAP sy-vline 
WA_TRGV_STEP_PROC_STR-DISSOLVE sy-vline 
WA_TRGV_STEP_PROC_STR-AMORT_END sy-vline 
WA_TRGV_STEP_PROC_STR-RATE_CAT_SPOTP sy-vline 
WA_TRGV_STEP_PROC_STR-RATE_CAT_SPOTS sy-vline 
WA_TRGV_STEP_PROC_STR-RATE_CAT_SWAPP sy-vline 
WA_TRGV_STEP_PROC_STR-RATE_CAT_SWAPS sy-vline 
WA_TRGV_STEP_PROC_STR-FORWARD_CAT sy-vline 
WA_TRGV_STEP_PROC_STR-CROSS_VAL sy-vline 
WA_TRGV_STEP_PROC_STR-STEP_PROC_TEXT sy-vline 
WA_TRGV_STEP_PROC_STR-GAIN_LOSS_HANDL sy-vline 
WA_TRGV_STEP_PROC_STR-RESET_TITLE_VAL sy-vline 
WA_TRGV_STEP_PROC_STR-ACCRUE_COMP sy-vline 
WA_TRGV_STEP_PROC_STR-SP_VAL_SEC sy-vline 
WA_TRGV_STEP_PROC_STR-NPV_CATEGORY sy-vline 
WA_TRGV_STEP_PROC_STR-INCL_INTEREST sy-vline 
WA_TRGV_STEP_PROC_STR-EFF_INT_SAC sy-vline 
WA_TRGV_STEP_PROC_STR-SULTVON sy-vline 
WA_TRGV_STEP_PROC_STR-SULTBIS sy-vline 
WA_TRGV_STEP_PROC_STR-AMORT_CUT sy-vline 
WA_TRGV_STEP_PROC_STR-ALLOW_CALC_AMORT sy-vline 
WA_TRGV_STEP_PROC_STR-VAD_AMORT sy-vline 
WA_TRGV_STEP_PROC_STR-COMP_VAL sy-vline 
WA_TRGV_STEP_PROC_STR-POSTING_SPEC_VAL sy-vline 
WA_TRGV_STEP_PROC_STR-FX_NETTING_DEAL sy-vline 
WA_TRGV_STEP_PROC_STR-CV_TYPE_START sy-vline 
WA_TRGV_STEP_PROC_STR-INTEREST_RISK sy-vline 
WA_TRGV_STEP_PROC_STR-CREDIT_RISK sy-vline 
WA_TRGV_STEP_PROC_STR-FXRATE_RISK sy-vline 
WA_TRGV_STEP_PROC_STR-PRICE_RISK sy-vline 
WA_TRGV_STEP_PROC_STR-EVAL_TYP sy-vline 
WA_TRGV_STEP_PROC_STR-CONV_RATE_AMORT sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_DIRTY_PRICE sy-vline 
WA_TRGV_STEP_PROC_STR-ACCRUAL_INCL sy-vline 
WA_TRGV_STEP_PROC_STR-ACCRUAL_ULTIMO sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_CLR_VAL_CURR sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_AMORT_END_EX sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_EXCL_TB sy-vline 
WA_TRGV_STEP_PROC_STR-CUSTOM_ATTRIB sy-vline 
WA_TRGV_STEP_PROC_STR-ACCRUAL_FUNCTION sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_HREL_LIMITED sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_ADJ_TRANSL4A sy-vline 
WA_TRGV_STEP_PROC_STR-AFFECT_DERIV_COMP sy-vline 
WA_TRGV_STEP_PROC_STR-INCL_COMP_INT sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_OFFSET_LOSS_ALLOWANCE sy-vline 
WA_TRGV_STEP_PROC_STR-AMORT_LOG_SAVE sy-vline 
WA_TRGV_STEP_PROC_STR-CUT_AMORT_CAP_INT sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_VAL_IN_VAL_CURR sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_RESET_NOT_POSSIBLE sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_NO_EXEC_HAC sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_LA_UPDATE_AT_PURCHASE sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_LA_INIT_AT_VCL_TRANS sy-vline 
WA_TRGV_STEP_PROC_STR-FLG_FX_RESET_NOT_POSSIBLE sy-vline 
WA_TRGV_STEP_PROC_STR-AMORT_KEYDATE_INCL sy-vline 
WA_TRGV_STEP_PROC_STR-CPT_PERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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