ABAP Select data from SAP table OIUVL_OILTKT_CUR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIUVL_OILTKT_CUR
*  INTO TABLE @DATA(IT_OIUVL_OILTKT_CUR2).
*--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_OIUVL_OILTKT_CUR INDEX 1 INTO DATA(WA_OIUVL_OILTKT_CUR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIUVL_OILTKT_CUR>-MANDT = 1.
<OIUVL_OILTKT_CUR>-OILSTMTH_NO = 1.
<OIUVL_OILTKT_CUR>-RUN_TKT_NO = 1.
<OIUVL_OILTKT_CUR>-SALE_DT = 1.
<OIUVL_OILTKT_CUR>-ORIG_MP_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIUVL_OILTKT_CUR-MATNR, sy-vline,
  WA_OIUVL_OILTKT_CUR-EFF_FROM_DT, sy-vline,
  WA_OIUVL_OILTKT_CUR-EFF_TO_DT, sy-vline,
  WA_OIUVL_OILTKT_CUR-DENSITY, sy-vline,
  WA_OIUVL_OILTKT_CUR-DENSITY_U, sy-vline,
  WA_OIUVL_OILTKT_CUR-VL_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIUVL_OILTKT_CUR 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_OIUVL_OILTKT_CUR 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_OIUVL_OILTKT_CUR INTO WA_OIUVL_OILTKT_CUR.


*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 ORIG_MP_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUVL_OILTKT_CUR-ORIG_MP_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUVL_OILTKT_CUR-ORIG_MP_NO.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PC_MP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUVL_OILTKT_CUR-PC_MP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUVL_OILTKT_CUR-PC_MP.
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_OIUVL_OILTKT_CUR_STR, 
MANDT TYPE STRING,
OILSTMTH_NO TYPE STRING,
RUN_TKT_NO TYPE STRING,
SALE_DT TYPE STRING,
ORIG_MP_NO TYPE STRING,
MATNR TYPE STRING,
EFF_FROM_DT TYPE STRING,
EFF_TO_DT TYPE STRING,
DENSITY TYPE STRING,
DENSITY_U TYPE STRING,
VL_TYPE TYPE STRING,
VL_CLS_CD TYPE STRING,
TRNSP_NO TYPE STRING,
TRNSP_REF_NO TYPE STRING,
VOLUME_AMT TYPE STRING,
VOLUME_UNIT TYPE STRING,
VALUE_AMT TYPE STRING,
VALUE_CURR TYPE STRING,
PC_AMT TYPE STRING,
PC_CURR TYPE STRING,
PC_CT_NO TYPE STRING,
PC_WL TYPE STRING,
PC_WC TYPE STRING,
PC_MP TYPE STRING,
KALSM TYPE STRING,
PC_CONDITION TYPE STRING,
RVSL_ONLY_FL TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIUVL_OILTKT_CUR_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_OIUVL_OILTKT_CUR_STR-MANDT sy-vline 
WA_OIUVL_OILTKT_CUR_STR-OILSTMTH_NO sy-vline 
WA_OIUVL_OILTKT_CUR_STR-RUN_TKT_NO sy-vline 
WA_OIUVL_OILTKT_CUR_STR-SALE_DT sy-vline 
WA_OIUVL_OILTKT_CUR_STR-ORIG_MP_NO sy-vline 
WA_OIUVL_OILTKT_CUR_STR-MATNR sy-vline 
WA_OIUVL_OILTKT_CUR_STR-EFF_FROM_DT sy-vline 
WA_OIUVL_OILTKT_CUR_STR-EFF_TO_DT sy-vline 
WA_OIUVL_OILTKT_CUR_STR-DENSITY sy-vline 
WA_OIUVL_OILTKT_CUR_STR-DENSITY_U sy-vline 
WA_OIUVL_OILTKT_CUR_STR-VL_TYPE sy-vline 
WA_OIUVL_OILTKT_CUR_STR-VL_CLS_CD sy-vline 
WA_OIUVL_OILTKT_CUR_STR-TRNSP_NO sy-vline 
WA_OIUVL_OILTKT_CUR_STR-TRNSP_REF_NO sy-vline 
WA_OIUVL_OILTKT_CUR_STR-VOLUME_AMT sy-vline 
WA_OIUVL_OILTKT_CUR_STR-VOLUME_UNIT sy-vline 
WA_OIUVL_OILTKT_CUR_STR-VALUE_AMT sy-vline 
WA_OIUVL_OILTKT_CUR_STR-VALUE_CURR sy-vline 
WA_OIUVL_OILTKT_CUR_STR-PC_AMT sy-vline 
WA_OIUVL_OILTKT_CUR_STR-PC_CURR sy-vline 
WA_OIUVL_OILTKT_CUR_STR-PC_CT_NO sy-vline 
WA_OIUVL_OILTKT_CUR_STR-PC_WL sy-vline 
WA_OIUVL_OILTKT_CUR_STR-PC_WC sy-vline 
WA_OIUVL_OILTKT_CUR_STR-PC_MP sy-vline 
WA_OIUVL_OILTKT_CUR_STR-KALSM sy-vline 
WA_OIUVL_OILTKT_CUR_STR-PC_CONDITION sy-vline 
WA_OIUVL_OILTKT_CUR_STR-RVSL_ONLY_FL sy-vline 
WA_OIUVL_OILTKT_CUR_STR-OIU_CRUSER sy-vline 
WA_OIUVL_OILTKT_CUR_STR-OIU_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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