ABAP Select data from SAP table P18_NEMPRI_2020_PAYMENT_METHOD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P18_NEMPRI_2020_PAYMENT_METHOD 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 P18_NEMPRI_2020_PAYMENT_METHOD. 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 P18_NEMPRI_2020_PAYMENT_METHOD 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_P18_NEMPRI_2020_PAYMENT_METHOD TYPE STANDARD TABLE OF P18_NEMPRI_2020_PAYMENT_METHOD,
      WA_P18_NEMPRI_2020_PAYMENT_METHOD TYPE P18_NEMPRI_2020_PAYMENT_METHOD,
      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: <P18_NEMPRI_2020_PAYMENT_METHOD> TYPE P18_NEMPRI_2020_PAYMENT_METHOD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P18_NEMPRI_2020_PAYMENT_METHOD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P18_NEMPRI_2020_PAYMENT_METHOD
  INTO TABLE IT_P18_NEMPRI_2020_PAYMENT_METHOD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P18_NEMPRI_2020_PAYMENT_METHOD
*  INTO TABLE @DATA(IT_P18_NEMPRI_2020_PAYMENT_METHOD2).
*--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_P18_NEMPRI_2020_PAYMENT_METHOD INDEX 1 INTO DATA(WA_P18_NEMPRI_2020_PAYMENT_METHOD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P18_NEMPRI_2020_PAYMENT_METHOD ASSIGNING <P18_NEMPRI_2020_PAYMENT_METHOD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P18_NEMPRI_2020_PAYMENT_METHOD>-VYPLATITUCETCR = 1.
<P18_NEMPRI_2020_PAYMENT_METHOD>-VYPLATITUCETCIZINA = 1.
<P18_NEMPRI_2020_PAYMENT_METHOD>-VYPLATITADRESA = 1.
<P18_NEMPRI_2020_PAYMENT_METHOD>-VYPLATITHOTOVOST = 1.
<P18_NEMPRI_2020_PAYMENT_METHOD>-ADRESA = 1.

ENDLOOP.

LOOP AT IT_P18_NEMPRI_2020_PAYMENT_METHOD INTO WA_P18_NEMPRI_2020_PAYMENT_METHOD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P18_NEMPRI_2020_PAYMENT_METHOD-OBEC, sy-vline,
  WA_P18_NEMPRI_2020_PAYMENT_METHOD-ULICE, sy-vline,
  WA_P18_NEMPRI_2020_PAYMENT_METHOD-CISLOPOPIS, sy-vline,
  WA_P18_NEMPRI_2020_PAYMENT_METHOD-CISLOORIENT, sy-vline,
  WA_P18_NEMPRI_2020_PAYMENT_METHOD-PSC, sy-vline,
  WA_P18_NEMPRI_2020_PAYMENT_METHOD-UCETCZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P18_NEMPRI_2020_PAYMENT_METHOD 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_P18_NEMPRI_2020_PAYMENT_METHOD 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_P18_NEMPRI_2020_PAYMENT_METHOD INTO WA_P18_NEMPRI_2020_PAYMENT_METHOD.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_P18_NEMPRI_2020_PAYMENT_METHOD_STR, 
VYPLATITUCETCR TYPE STRING,
VYPLATITUCETCIZINA TYPE STRING,
VYPLATITADRESA TYPE STRING,
VYPLATITHOTOVOST TYPE STRING,
ADRESA TYPE STRING,
OBEC TYPE STRING,
ULICE TYPE STRING,
CISLOPOPIS TYPE STRING,
CISLOORIENT TYPE STRING,
PSC TYPE STRING,
UCETCZ TYPE STRING,
PREDCISLI TYPE STRING,
UCETCISLO TYPE STRING,
SPECSYMBOL TYPE STRING,
BANKAKOD TYPE STRING,
UCETZAHRANICNI TYPE STRING,
STAT TYPE STRING,
IBAN TYPE STRING,
UCETCISLO TYPE STRING,
UCETNAZEV TYPE STRING,
BANKANAZEV TYPE STRING,
BANKATYPID TYPE STRING,
BANKAKOD TYPE STRING,
OBEC TYPE STRING,
ULICE TYPE STRING,
CISLOPOPIS TYPE STRING,
CISLOORIENT TYPE STRING,
PSC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P18_NEMPRI_2020_PAYMENT_METHOD_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_P18_NEMPRI_2020_PAYMENT_METHOD_STR-VYPLATITUCETCR sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-VYPLATITUCETCIZINA sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-VYPLATITADRESA sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-VYPLATITHOTOVOST sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-ADRESA sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-OBEC sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-ULICE sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-CISLOPOPIS sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-CISLOORIENT sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-PSC sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-UCETCZ sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-PREDCISLI sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-UCETCISLO sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-SPECSYMBOL sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-BANKAKOD sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-UCETZAHRANICNI sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-STAT sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-IBAN sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-UCETCISLO sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-UCETNAZEV sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-BANKANAZEV sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-BANKATYPID sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-BANKAKOD sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-OBEC sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-ULICE sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-CISLOPOPIS sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-CISLOORIENT sy-vline 
WA_P18_NEMPRI_2020_PAYMENT_METHOD_STR-PSC sy-vline      INTO ld_text SEPARATED BY SPACE.

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