ABAP Select data from SAP table ISU_EPREI_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_EPREI_S
*  INTO TABLE @DATA(IT_ISU_EPREI_S2).
*--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_ISU_EPREI_S INDEX 1 INTO DATA(WA_ISU_EPREI_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_EPREI_S>-SAISON = 1.
<ISU_EPREI_S>-DATE_FROM = 1.
<ISU_EPREI_S>-DATE_TO = 1.
<ISU_EPREI_S>-MANDT = 1.
<ISU_EPREI_S>-PREIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_EPREI_S-PREISTYP, sy-vline,
  WA_ISU_EPREI_S-PREISTUF, sy-vline,
  WA_ISU_EPREI_S-SPARTE, sy-vline,
  WA_ISU_EPREI_S-MASS, sy-vline,
  WA_ISU_EPREI_S-AKLASSE, sy-vline,
  WA_ISU_EPREI_S-TIMBASIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_EPREI_S 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_ISU_EPREI_S 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_ISU_EPREI_S INTO WA_ISU_EPREI_S.


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

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

*Conversion exit ALPHA, internal->external for field ANLAGE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_EPREI_S-ANLAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_EPREI_S-ANLAGE.
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_ISU_EPREI_S_STR, 
SAISON TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
MANDT TYPE STRING,
PREIS TYPE STRING,
PREISTYP TYPE STRING,
PREISTUF TYPE STRING,
SPARTE TYPE STRING,
MASS TYPE STRING,
AKLASSE TYPE STRING,
TIMBASIS TYPE STRING,
TIMTYP TYPE STRING,
PREIGKL TYPE STRING,
MITTELPR TYPE STRING,
DPREIKZ TYPE STRING,
RUNDART TYPE STRING,
RUNDUNG TYPE STRING,
PREISART TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
INDEXP TYPE STRING,
NEXTINT TYPE STRING,
FRAN_TYPE TYPE STRING,
EXTPRICE TYPE STRING,
PRCZONAJ TYPE STRING,
PRCZOMIN TYPE STRING,
PRCZOMAX TYPE STRING,
KA_GRENZPREIS TYPE STRING,
GROSSPRICE TYPE STRING,
PRICEORIGIN TYPE STRING,
ANLAGE TYPE STRING,
RABART TYPE STRING,
RABTYP TYPE STRING,
PRICE_HISTORY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_EPREI_S_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_ISU_EPREI_S_STR-SAISON sy-vline 
WA_ISU_EPREI_S_STR-DATE_FROM sy-vline 
WA_ISU_EPREI_S_STR-DATE_TO sy-vline 
WA_ISU_EPREI_S_STR-MANDT sy-vline 
WA_ISU_EPREI_S_STR-PREIS sy-vline 
WA_ISU_EPREI_S_STR-PREISTYP sy-vline 
WA_ISU_EPREI_S_STR-PREISTUF sy-vline 
WA_ISU_EPREI_S_STR-SPARTE sy-vline 
WA_ISU_EPREI_S_STR-MASS sy-vline 
WA_ISU_EPREI_S_STR-AKLASSE sy-vline 
WA_ISU_EPREI_S_STR-TIMBASIS sy-vline 
WA_ISU_EPREI_S_STR-TIMTYP sy-vline 
WA_ISU_EPREI_S_STR-PREIGKL sy-vline 
WA_ISU_EPREI_S_STR-MITTELPR sy-vline 
WA_ISU_EPREI_S_STR-DPREIKZ sy-vline 
WA_ISU_EPREI_S_STR-RUNDART sy-vline 
WA_ISU_EPREI_S_STR-RUNDUNG sy-vline 
WA_ISU_EPREI_S_STR-PREISART sy-vline 
WA_ISU_EPREI_S_STR-ERDAT sy-vline 
WA_ISU_EPREI_S_STR-ERNAM sy-vline 
WA_ISU_EPREI_S_STR-AEDAT sy-vline 
WA_ISU_EPREI_S_STR-AENAM sy-vline 
WA_ISU_EPREI_S_STR-BEGRU sy-vline 
WA_ISU_EPREI_S_STR-LOEVM sy-vline 
WA_ISU_EPREI_S_STR-INDEXP sy-vline 
WA_ISU_EPREI_S_STR-NEXTINT sy-vline 
WA_ISU_EPREI_S_STR-FRAN_TYPE sy-vline 
WA_ISU_EPREI_S_STR-EXTPRICE sy-vline 
WA_ISU_EPREI_S_STR-PRCZONAJ sy-vline 
WA_ISU_EPREI_S_STR-PRCZOMIN sy-vline 
WA_ISU_EPREI_S_STR-PRCZOMAX sy-vline 
WA_ISU_EPREI_S_STR-KA_GRENZPREIS sy-vline 
WA_ISU_EPREI_S_STR-GROSSPRICE sy-vline 
WA_ISU_EPREI_S_STR-PRICEORIGIN sy-vline 
WA_ISU_EPREI_S_STR-ANLAGE sy-vline 
WA_ISU_EPREI_S_STR-RABART sy-vline 
WA_ISU_EPREI_S_STR-RABTYP sy-vline 
WA_ISU_EPREI_S_STR-PRICE_HISTORY sy-vline      INTO ld_text SEPARATED BY SPACE.

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