ABAP Select data from SAP table VALS_CUST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VALS_CUST
*  INTO TABLE @DATA(IT_VALS_CUST2).
*--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_VALS_CUST INDEX 1 INTO DATA(WA_VALS_CUST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VALS_CUST>-POS_MAN_PROC = 1.
<VALS_CUST>-POS_MAN_CAT = 1.
<VALS_CUST>-STEP_CAT = 1.
<VALS_CUST>-STEP_PROC = 1.
<VALS_CUST>-PRICE_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VALS_CUST-CV_TYPE, sy-vline,
  WA_VALS_CUST-RATE_CATEGORY, sy-vline,
  WA_VALS_CUST-FLG_CLEAR_VAL, sy-vline,
  WA_VALS_CUST-FLG_FX_IMP, sy-vline,
  WA_VALS_CUST-FLG_ALLOW_AMORT, sy-vline,
  WA_VALS_CUST-CONV_RATE_IMP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VALS_CUST 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_VALS_CUST 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_VALS_CUST INTO WA_VALS_CUST.


*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_VALS_CUST_STR, 
POS_MAN_PROC TYPE STRING,
POS_MAN_CAT TYPE STRING,
STEP_CAT TYPE STRING,
STEP_PROC TYPE STRING,
PRICE_TYPE TYPE STRING,
CV_TYPE TYPE STRING,
RATE_CATEGORY TYPE STRING,
FLG_CLEAR_VAL TYPE STRING,
FLG_FX_IMP TYPE STRING,
FLG_ALLOW_AMORT TYPE STRING,
CONV_RATE_IMP TYPE STRING,
RULE_UP TYPE STRING,
RULE_DOWN TYPE STRING,
FLG_COSTS TYPE STRING,
RESOLVE_TI TYPE STRING,
RESOLVE_FE TYPE STRING,
GAIN_LOSS_HANDL TYPE STRING,
RESET_TITLE_VAL TYPE STRING,
COMPUTATION_CAT TYPE STRING,
BRUTTO_NETTO TYPE STRING,
RATE_CALC_METHOD TYPE STRING,
PURCHASE_GAAP TYPE STRING,
ACCRUE_COMP 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,
SP_VAL_SEC TYPE STRING,
NPV_CATEGORY TYPE STRING,
INCL_INTEREST TYPE STRING,
EFF_INT_SAC TYPE STRING,
IMP_PROC TYPE STRING,
SULTVON TYPE STRING,
SULTBIS TYPE STRING,
AMORT_CUT TYPE STRING,
ALLOW_CALC_AMORT TYPE STRING,
VAD_AMORT TYPE STRING,
POS_PASSIV TYPE STRING,
COMP_VAL TYPE STRING,
POSTING_SPEC_VAL TYPE STRING,
FX_NETTING_DEAL TYPE STRING,
INTEREST_RISK TYPE STRING,
CREDIT_RISK TYPE STRING,
FXRATE_RISK TYPE STRING,
PRICE_RISK TYPE STRING,
FLG_TITLE_IMP TYPE STRING,
CONV_RATE_AMORT TYPE STRING,
ROUND_PROC TYPE STRING,
FLG_CLR_REAL_TIL TYPE STRING,
FLG_CLR_REAL_FX TYPE STRING,
FLG_ONE_STEP TYPE STRING,
FLG_VAL_CURR_DEC 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,
FLG_HREL_LIMITED TYPE STRING,
FLG_CLR_INDEX TYPE STRING,
FLG_IMP_VC TYPE STRING,
FLG_OFFSET_LOSS_ALLOWANCE TYPE STRING,
AMORT_LOG_SAVE TYPE STRING,
INCL_COMP_INT TYPE STRING,
FLG_VAL_IN_VAL_CURR TYPE STRING,
CUT_AMORT_CAP_INT TYPE STRING,
FLG_RESET_NOT_POSSIBLE TYPE STRING,
FLG_NO_EXEC_HAC 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_VALS_CUST_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_VALS_CUST_STR-POS_MAN_PROC sy-vline 
WA_VALS_CUST_STR-POS_MAN_CAT sy-vline 
WA_VALS_CUST_STR-STEP_CAT sy-vline 
WA_VALS_CUST_STR-STEP_PROC sy-vline 
WA_VALS_CUST_STR-PRICE_TYPE sy-vline 
WA_VALS_CUST_STR-CV_TYPE sy-vline 
WA_VALS_CUST_STR-RATE_CATEGORY sy-vline 
WA_VALS_CUST_STR-FLG_CLEAR_VAL sy-vline 
WA_VALS_CUST_STR-FLG_FX_IMP sy-vline 
WA_VALS_CUST_STR-FLG_ALLOW_AMORT sy-vline 
WA_VALS_CUST_STR-CONV_RATE_IMP sy-vline 
WA_VALS_CUST_STR-RULE_UP sy-vline 
WA_VALS_CUST_STR-RULE_DOWN sy-vline 
WA_VALS_CUST_STR-FLG_COSTS sy-vline 
WA_VALS_CUST_STR-RESOLVE_TI sy-vline 
WA_VALS_CUST_STR-RESOLVE_FE sy-vline 
WA_VALS_CUST_STR-GAIN_LOSS_HANDL sy-vline 
WA_VALS_CUST_STR-RESET_TITLE_VAL sy-vline 
WA_VALS_CUST_STR-COMPUTATION_CAT sy-vline 
WA_VALS_CUST_STR-BRUTTO_NETTO sy-vline 
WA_VALS_CUST_STR-RATE_CALC_METHOD sy-vline 
WA_VALS_CUST_STR-PURCHASE_GAAP sy-vline 
WA_VALS_CUST_STR-ACCRUE_COMP sy-vline 
WA_VALS_CUST_STR-DISSOLVE sy-vline 
WA_VALS_CUST_STR-AMORT_END sy-vline 
WA_VALS_CUST_STR-RATE_CAT_SPOTP sy-vline 
WA_VALS_CUST_STR-RATE_CAT_SPOTS sy-vline 
WA_VALS_CUST_STR-RATE_CAT_SWAPP sy-vline 
WA_VALS_CUST_STR-RATE_CAT_SWAPS sy-vline 
WA_VALS_CUST_STR-FORWARD_CAT sy-vline 
WA_VALS_CUST_STR-CROSS_VAL sy-vline 
WA_VALS_CUST_STR-SP_VAL_SEC sy-vline 
WA_VALS_CUST_STR-NPV_CATEGORY sy-vline 
WA_VALS_CUST_STR-INCL_INTEREST sy-vline 
WA_VALS_CUST_STR-EFF_INT_SAC sy-vline 
WA_VALS_CUST_STR-IMP_PROC sy-vline 
WA_VALS_CUST_STR-SULTVON sy-vline 
WA_VALS_CUST_STR-SULTBIS sy-vline 
WA_VALS_CUST_STR-AMORT_CUT sy-vline 
WA_VALS_CUST_STR-ALLOW_CALC_AMORT sy-vline 
WA_VALS_CUST_STR-VAD_AMORT sy-vline 
WA_VALS_CUST_STR-POS_PASSIV sy-vline 
WA_VALS_CUST_STR-COMP_VAL sy-vline 
WA_VALS_CUST_STR-POSTING_SPEC_VAL sy-vline 
WA_VALS_CUST_STR-FX_NETTING_DEAL sy-vline 
WA_VALS_CUST_STR-INTEREST_RISK sy-vline 
WA_VALS_CUST_STR-CREDIT_RISK sy-vline 
WA_VALS_CUST_STR-FXRATE_RISK sy-vline 
WA_VALS_CUST_STR-PRICE_RISK sy-vline 
WA_VALS_CUST_STR-FLG_TITLE_IMP sy-vline 
WA_VALS_CUST_STR-CONV_RATE_AMORT sy-vline 
WA_VALS_CUST_STR-ROUND_PROC sy-vline 
WA_VALS_CUST_STR-FLG_CLR_REAL_TIL sy-vline 
WA_VALS_CUST_STR-FLG_CLR_REAL_FX sy-vline 
WA_VALS_CUST_STR-FLG_ONE_STEP sy-vline 
WA_VALS_CUST_STR-FLG_VAL_CURR_DEC sy-vline 
WA_VALS_CUST_STR-FLG_DIRTY_PRICE sy-vline 
WA_VALS_CUST_STR-ACCRUAL_INCL sy-vline 
WA_VALS_CUST_STR-ACCRUAL_ULTIMO sy-vline 
WA_VALS_CUST_STR-FLG_CLR_VAL_CURR sy-vline 
WA_VALS_CUST_STR-FLG_AMORT_END_EX sy-vline 
WA_VALS_CUST_STR-FLG_EXCL_TB sy-vline 
WA_VALS_CUST_STR-FLG_HREL_LIMITED sy-vline 
WA_VALS_CUST_STR-FLG_CLR_INDEX sy-vline 
WA_VALS_CUST_STR-FLG_IMP_VC sy-vline 
WA_VALS_CUST_STR-FLG_OFFSET_LOSS_ALLOWANCE sy-vline 
WA_VALS_CUST_STR-AMORT_LOG_SAVE sy-vline 
WA_VALS_CUST_STR-INCL_COMP_INT sy-vline 
WA_VALS_CUST_STR-FLG_VAL_IN_VAL_CURR sy-vline 
WA_VALS_CUST_STR-CUT_AMORT_CAP_INT sy-vline 
WA_VALS_CUST_STR-FLG_RESET_NOT_POSSIBLE sy-vline 
WA_VALS_CUST_STR-FLG_NO_EXEC_HAC sy-vline 
WA_VALS_CUST_STR-FLG_FX_RESET_NOT_POSSIBLE sy-vline 
WA_VALS_CUST_STR-AMORT_KEYDATE_INCL sy-vline 
WA_VALS_CUST_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.