ABAP Select data from SAP table /PRA/S_VL_DA_GROUPS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PRA/S_VL_DA_GROUPS 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 /PRA/S_VL_DA_GROUPS. 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 /PRA/S_VL_DA_GROUPS 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_/PRA/S_VL_DA_GROUPS TYPE STANDARD TABLE OF /PRA/S_VL_DA_GROUPS,
      WA_/PRA/S_VL_DA_GROUPS TYPE /PRA/S_VL_DA_GROUPS,
      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: </PRA/S_VL_DA_GROUPS> TYPE /PRA/S_VL_DA_GROUPS.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PRA/S_VL_DA_GROUPS
  INTO TABLE IT_/PRA/S_VL_DA_GROUPS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PRA/S_VL_DA_GROUPS
*  INTO TABLE @DATA(IT_/PRA/S_VL_DA_GROUPS2).
*--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_/PRA/S_VL_DA_GROUPS INDEX 1 INTO DATA(WA_/PRA/S_VL_DA_GROUPS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PRA/S_VL_DA_GROUPS ASSIGNING </PRA/S_VL_DA_GROUPS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PRA/S_VL_DA_GROUPS>-DN_NO = 1.
</PRA/S_VL_DA_GROUPS>-WL_NO = 1.
</PRA/S_VL_DA_GROUPS>-WC_NO = 1.
</PRA/S_VL_DA_GROUPS>-MP_NO = 1.
</PRA/S_VL_DA_GROUPS>-BUKRS = 1.

ENDLOOP.

LOOP AT IT_/PRA/S_VL_DA_GROUPS INTO WA_/PRA/S_VL_DA_GROUPS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PRA/S_VL_DA_GROUPS-VNAME, sy-vline,
  WA_/PRA/S_VL_DA_GROUPS-DOI_NO, sy-vline,
  WA_/PRA/S_VL_DA_GROUPS-CT_NO, sy-vline,
  WA_/PRA/S_VL_DA_GROUPS-MAJPD_CD, sy-vline,
  WA_/PRA/S_VL_DA_GROUPS-SALE_DT, sy-vline,
  WA_/PRA/S_VL_DA_GROUPS-FREQ_CD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PRA/S_VL_DA_GROUPS 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_/PRA/S_VL_DA_GROUPS 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_/PRA/S_VL_DA_GROUPS INTO WA_/PRA/S_VL_DA_GROUPS.


*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.

*Conversion exit ALPHA, internal->external for field DN_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-DN_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-DN_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WL_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-WL_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-WL_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WC_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-WC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-WC_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MP_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-MP_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-MP_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOI_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-DOI_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-DOI_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CT_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-CT_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-CT_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOC_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-DOC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-DOC_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field DOC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-DOC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-DOC_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OWN_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-OWN_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-OWN_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OWN_ISQ_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-OWN_ISQ_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-OWN_ISQ_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GR_VL_U
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-GR_VL_U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-GR_VL_U.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VNAME_DUMMY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-VNAME_DUMMY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-VNAME_DUMMY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOI_NO_DUMMY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-DOI_NO_DUMMY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-DOI_NO_DUMMY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UNIT_VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-UNIT_VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-UNIT_VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ENERGY_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-ENERGY_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-ENERGY_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field HEAT_VALUE_FCT_U
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_VL_DA_GROUPS-HEAT_VALUE_FCT_U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_VL_DA_GROUPS-HEAT_VALUE_FCT_U.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/PRA/S_VL_DA_GROUPS_STR, 
DN_NO TYPE STRING,
WL_NO TYPE STRING,
WC_NO TYPE STRING,
MP_NO TYPE STRING,
BUKRS TYPE STRING,
VNAME TYPE STRING,
DOI_NO TYPE STRING,
CT_NO TYPE STRING,
MAJPD_CD TYPE STRING,
SALE_DT TYPE STRING,
FREQ_CD TYPE STRING,
MATNR TYPE STRING,
DOC_NO TYPE STRING,
DOC_YEAR TYPE STRING,
LINE_NO TYPE STRING,
OWN_NO TYPE STRING,
OWN_INT_TYPE_CD TYPE STRING,
OWN_ISQ_NO TYPE STRING,
FRML_NO TYPE STRING,
OIU_MMS_TYPE_CD TYPE STRING,
GR_VAL_AM TYPE STRING,
GR_VL_AM TYPE STRING,
GR_VL_U TYPE STRING,
PRES_BASE TYPE STRING,
GR_ENERGY TYPE STRING,
MKT_TYPE_01 TYPE STRING,
MKT_TYPE_02 TYPE STRING,
MKT_TYPE_03 TYPE STRING,
MKT_TYPE_04 TYPE STRING,
MKT_TYPE_05 TYPE STRING,
MKT_TYPE_06 TYPE STRING,
MKT_TYPE_07 TYPE STRING,
MKT_TYPE_08 TYPE STRING,
MKT_TYPE_09 TYPE STRING,
MKT_TYPE_10 TYPE STRING,
GR_MKT_COST TYPE STRING,
IS_UNIT TYPE STRING,
GUID TYPE STRING,
VNAME_DUMMY TYPE STRING,
DOI_NO_DUMMY TYPE STRING,
MMS_POP_COMP_FL TYPE STRING,
DUAL_ACCT_FL TYPE STRING,
ENTL_CD TYPE STRING,
UNIT_BUKRS TYPE STRING,
UNIT_VNAME TYPE STRING,
POS_NO TYPE STRING,
PCT_RET_LSE TYPE STRING,
ENERGY_UOM TYPE STRING,
HEAT_VALUE_FCT_U TYPE STRING,
TR_NO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PRA/S_VL_DA_GROUPS_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_/PRA/S_VL_DA_GROUPS_STR-DN_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-WL_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-WC_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MP_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-BUKRS sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-VNAME sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-DOI_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-CT_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MAJPD_CD sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-SALE_DT sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-FREQ_CD sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MATNR sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-DOC_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-DOC_YEAR sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-LINE_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-OWN_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-OWN_INT_TYPE_CD sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-OWN_ISQ_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-FRML_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-OIU_MMS_TYPE_CD sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-GR_VAL_AM sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-GR_VL_AM sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-GR_VL_U sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-PRES_BASE sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-GR_ENERGY sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_01 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_02 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_03 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_04 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_05 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_06 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_07 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_08 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_09 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MKT_TYPE_10 sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-GR_MKT_COST sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-IS_UNIT sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-GUID sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-VNAME_DUMMY sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-DOI_NO_DUMMY sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-MMS_POP_COMP_FL sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-DUAL_ACCT_FL sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-ENTL_CD sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-UNIT_BUKRS sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-UNIT_VNAME sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-POS_NO sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-PCT_RET_LSE sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-ENERGY_UOM sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-HEAT_VALUE_FCT_U sy-vline 
WA_/PRA/S_VL_DA_GROUPS_STR-TR_NO sy-vline      INTO ld_text SEPARATED BY SPACE.

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