ABAP Select data from SAP table /PRA/S_CTR_MREP_VAL 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_CTR_MREP_VAL 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_CTR_MREP_VAL. 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_CTR_MREP_VAL 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_CTR_MREP_VAL TYPE STANDARD TABLE OF /PRA/S_CTR_MREP_VAL,
      WA_/PRA/S_CTR_MREP_VAL TYPE /PRA/S_CTR_MREP_VAL,
      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_CTR_MREP_VAL> TYPE /PRA/S_CTR_MREP_VAL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PRA/S_CTR_MREP_VAL
*  INTO TABLE @DATA(IT_/PRA/S_CTR_MREP_VAL2).
*--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_CTR_MREP_VAL INDEX 1 INTO DATA(WA_/PRA/S_CTR_MREP_VAL2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PRA/S_CTR_MREP_VAL-ORIG_MP_NO, sy-vline,
  WA_/PRA/S_CTR_MREP_VAL-TRNSP_NO, sy-vline,
  WA_/PRA/S_CTR_MREP_VAL-MATNR, sy-vline,
  WA_/PRA/S_CTR_MREP_VAL-FREQ_CD, sy-vline,
  WA_/PRA/S_CTR_MREP_VAL-CT_NO, sy-vline,
  WA_/PRA/S_CTR_MREP_VAL-VC_CD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PRA/S_CTR_MREP_VAL 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_CTR_MREP_VAL 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_CTR_MREP_VAL INTO WA_/PRA/S_CTR_MREP_VAL.


*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_CTR_MREP_VAL-DN_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_CTR_MREP_VAL-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_CTR_MREP_VAL-WL_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_CTR_MREP_VAL-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_CTR_MREP_VAL-WC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_CTR_MREP_VAL-WC_NO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field MK_REP_ISQ_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/S_CTR_MREP_VAL-MK_REP_ISQ_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_CTR_MREP_VAL-MK_REP_ISQ_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_CTR_MREP_VAL-MP_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/S_CTR_MREP_VAL-MP_NO.
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_CTR_MREP_VAL_STR, 
MANDT TYPE STRING,
DN_NO TYPE STRING,
SA_DT TYPE STRING,
WL_NO TYPE STRING,
WC_NO TYPE STRING,
ORIG_MP_NO TYPE STRING,
TRNSP_NO TYPE STRING,
MATNR TYPE STRING,
FREQ_CD TYPE STRING,
CT_NO TYPE STRING,
VC_CD TYPE STRING,
STD_VOL_U TYPE STRING,
STD_VOL TYPE STRING,
STD_HEAT_VAL_U TYPE STRING,
STD_HEAT_VAL TYPE STRING,
STD_ENERGY_U TYPE STRING,
STD_ENERGY TYPE STRING,
QY_U TYPE STRING,
ENTL_QY TYPE STRING,
ADJ_ENTL_QY TYPE STRING,
PHASE_1_QY TYPE STRING,
PHASE_2_QY TYPE STRING,
PHASE_3_QY TYPE STRING,
PHASE_4_QY TYPE STRING,
PHASE_5_QY TYPE STRING,
ME_DOCNR TYPE STRING,
ME_DOCYR TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,
MK_REP_NO TYPE STRING,
MK_REP_ISQ_NO TYPE STRING,
MP_NO TYPE STRING,
CT_TYPE_CD TYPE STRING,
APPR_FL TYPE STRING,
DEST_SALE_CD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PRA/S_CTR_MREP_VAL_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_CTR_MREP_VAL_STR-MANDT sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-DN_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-SA_DT sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-WL_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-WC_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-ORIG_MP_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-TRNSP_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-MATNR sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-FREQ_CD sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-CT_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-VC_CD sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-STD_VOL_U sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-STD_VOL sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-STD_HEAT_VAL_U sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-STD_HEAT_VAL sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-STD_ENERGY_U sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-STD_ENERGY sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-QY_U sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-ENTL_QY sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-ADJ_ENTL_QY sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-PHASE_1_QY sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-PHASE_2_QY sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-PHASE_3_QY sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-PHASE_4_QY sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-PHASE_5_QY sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-ME_DOCNR sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-ME_DOCYR sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-OIU_CRUSER sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-OIU_TIMESTAMP sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-MK_REP_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-MK_REP_ISQ_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-MP_NO sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-CT_TYPE_CD sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-APPR_FL sy-vline 
WA_/PRA/S_CTR_MREP_VAL_STR-DEST_SALE_CD sy-vline      INTO ld_text SEPARATED BY SPACE.

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