ABAP Select data from SAP table PAMTMULTCATY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAMTMULTCATY
*  INTO TABLE @DATA(IT_PAMTMULTCATY2).
*--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_PAMTMULTCATY INDEX 1 INTO DATA(WA_PAMTMULTCATY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAMTMULTCATY>-MANDT = 1.
<PAMTMULTCATY>-COMPANYCODE = 1.
<PAMTMULTCATY>-ACCOUNTINGPRINCIPLE = 1.
<PAMTMULTCATY>-REVENUEACCOUNTINGCONTRACT = 1.
<PAMTMULTCATY>-PERFORMANCEOBLIGATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAMTMULTCATY-FISCALYEAR, sy-vline,
  WA_PAMTMULTCATY-RACONTRBALISRVSDBYIMPRMTOFAST, sy-vline,
  WA_PAMTMULTCATY-SALESDOCUMENTCURRENCY, sy-vline,
  WA_PAMTMULTCATY-COMPANYCODECURRENCY, sy-vline,
  WA_PAMTMULTCATY-ADDITIONALCURRENCY1, sy-vline,
  WA_PAMTMULTCATY-ADDITIONALCURRENCY2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAMTMULTCATY 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_PAMTMULTCATY 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_PAMTMULTCATY INTO WA_PAMTMULTCATY.


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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PAMTMULTCATY-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAMTMULTCATY-FISCALYEAR.
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_PAMTMULTCATY_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGPRINCIPLE TYPE STRING,
REVENUEACCOUNTINGCONTRACT TYPE STRING,
PERFORMANCEOBLIGATION TYPE STRING,
FISCALYEAR TYPE STRING,
RACONTRBALISRVSDBYIMPRMTOFAST TYPE STRING,
SALESDOCUMENTCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
ADDITIONALCURRENCY1 TYPE STRING,
ADDITIONALCURRENCY2 TYPE STRING,
RACONTRASTPOSTDAMTINSLSDOCCRCY TYPE STRING,
RACONTRASTPOSTDAMTINCCCRCY TYPE STRING,
RACONTRASTPOSTDAMTINADDLCRCY1 TYPE STRING,
RACONTRASTPOSTDAMTINADDLCRCY2 TYPE STRING,
IMPRMTOFASTOFCONTRASTINSLSCRCY TYPE STRING,
IMPRMTOFASTOFCONTRASTINCOCRCY TYPE STRING,
CONTRASSETIMPRMTAMTINADDLCRCY1 TYPE STRING,
CONTRASSETIMPRMTAMTINADDLCRCY2 TYPE STRING,
CONTRLBLTYPOSTDAMTINSLSDOCCRCY TYPE STRING,
CONTRLBLTYPOSTDAMTINCOCRCY TYPE STRING,
CONTRLBLTYPOSTDAMTINADDLCRCY1 TYPE STRING,
CONTRLBLTYPOSTDAMTINADDLCRCY2 TYPE STRING,
IMPRMTOFCONTRLBLTYINSLSCRCY TYPE STRING,
IMPRMTOFCONTRLBLTYINCOCRCY TYPE STRING,
CONTRLBLTYIMPRMTAMTINADDLCRCY1 TYPE STRING,
CONTRLBLTYIMPRMTAMTINADDLCRCY2 TYPE STRING,
RARECOGNIZEDREVNINSLSDOCCRCY TYPE STRING,
RECOGNIZEDREVNAMTINCCCRCY TYPE STRING,
RECOGNIZEDREVNAMTINADDLCRCY1 TYPE STRING,
RECOGNIZEDREVNAMTINADDLCRCY2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAMTMULTCATY_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_PAMTMULTCATY_STR-MANDT sy-vline 
WA_PAMTMULTCATY_STR-COMPANYCODE sy-vline 
WA_PAMTMULTCATY_STR-ACCOUNTINGPRINCIPLE sy-vline 
WA_PAMTMULTCATY_STR-REVENUEACCOUNTINGCONTRACT sy-vline 
WA_PAMTMULTCATY_STR-PERFORMANCEOBLIGATION sy-vline 
WA_PAMTMULTCATY_STR-FISCALYEAR sy-vline 
WA_PAMTMULTCATY_STR-RACONTRBALISRVSDBYIMPRMTOFAST sy-vline 
WA_PAMTMULTCATY_STR-SALESDOCUMENTCURRENCY sy-vline 
WA_PAMTMULTCATY_STR-COMPANYCODECURRENCY sy-vline 
WA_PAMTMULTCATY_STR-ADDITIONALCURRENCY1 sy-vline 
WA_PAMTMULTCATY_STR-ADDITIONALCURRENCY2 sy-vline 
WA_PAMTMULTCATY_STR-RACONTRASTPOSTDAMTINSLSDOCCRCY sy-vline 
WA_PAMTMULTCATY_STR-RACONTRASTPOSTDAMTINCCCRCY sy-vline 
WA_PAMTMULTCATY_STR-RACONTRASTPOSTDAMTINADDLCRCY1 sy-vline 
WA_PAMTMULTCATY_STR-RACONTRASTPOSTDAMTINADDLCRCY2 sy-vline 
WA_PAMTMULTCATY_STR-IMPRMTOFASTOFCONTRASTINSLSCRCY sy-vline 
WA_PAMTMULTCATY_STR-IMPRMTOFASTOFCONTRASTINCOCRCY sy-vline 
WA_PAMTMULTCATY_STR-CONTRASSETIMPRMTAMTINADDLCRCY1 sy-vline 
WA_PAMTMULTCATY_STR-CONTRASSETIMPRMTAMTINADDLCRCY2 sy-vline 
WA_PAMTMULTCATY_STR-CONTRLBLTYPOSTDAMTINSLSDOCCRCY sy-vline 
WA_PAMTMULTCATY_STR-CONTRLBLTYPOSTDAMTINCOCRCY sy-vline 
WA_PAMTMULTCATY_STR-CONTRLBLTYPOSTDAMTINADDLCRCY1 sy-vline 
WA_PAMTMULTCATY_STR-CONTRLBLTYPOSTDAMTINADDLCRCY2 sy-vline 
WA_PAMTMULTCATY_STR-IMPRMTOFCONTRLBLTYINSLSCRCY sy-vline 
WA_PAMTMULTCATY_STR-IMPRMTOFCONTRLBLTYINCOCRCY sy-vline 
WA_PAMTMULTCATY_STR-CONTRLBLTYIMPRMTAMTINADDLCRCY1 sy-vline 
WA_PAMTMULTCATY_STR-CONTRLBLTYIMPRMTAMTINADDLCRCY2 sy-vline 
WA_PAMTMULTCATY_STR-RARECOGNIZEDREVNINSLSDOCCRCY sy-vline 
WA_PAMTMULTCATY_STR-RECOGNIZEDREVNAMTINCCCRCY sy-vline 
WA_PAMTMULTCATY_STR-RECOGNIZEDREVNAMTINADDLCRCY1 sy-vline 
WA_PAMTMULTCATY_STR-RECOGNIZEDREVNAMTINADDLCRCY2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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