ABAP Select data from SAP table T77PAYKZBT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T77PAYKZBT 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 T77PAYKZBT. 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 T77PAYKZBT 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_T77PAYKZBT TYPE STANDARD TABLE OF T77PAYKZBT,
      WA_T77PAYKZBT TYPE T77PAYKZBT,
      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: <T77PAYKZBT> TYPE T77PAYKZBT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T77PAYKZBT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T77PAYKZBT
  INTO TABLE IT_T77PAYKZBT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T77PAYKZBT
*  INTO TABLE @DATA(IT_T77PAYKZBT2).
*--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_T77PAYKZBT INDEX 1 INTO DATA(WA_T77PAYKZBT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T77PAYKZBT ASSIGNING <T77PAYKZBT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T77PAYKZBT>-MANDT = 1.
<T77PAYKZBT>-PERNR = 1.
<T77PAYKZBT>-SEQNR = 1.
<T77PAYKZBT>-BTQNR = 1.
<T77PAYKZBT>-GPVAL = 1.

ENDLOOP.

LOOP AT IT_T77PAYKZBT INTO WA_T77PAYKZBT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T77PAYKZBT-SRTZA, sy-vline,
  WA_T77PAYKZBT-IPERM, sy-vline,
  WA_T77PAYKZBT-INPER, sy-vline,
  WA_T77PAYKZBT-FPPER, sy-vline,
  WA_T77PAYKZBT-JUPER, sy-vline,
  WA_T77PAYKZBT-ABKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T77PAYKZBT 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_T77PAYKZBT 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_T77PAYKZBT INTO WA_T77PAYKZBT.


*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 ESRRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T77PAYKZBT-ESRRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T77PAYKZBT-ESRRE.
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_T77PAYKZBT_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
SEQNR TYPE STRING,
BTQNR TYPE STRING,
GPVAL TYPE STRING,
SRTZA TYPE STRING,
IPERM TYPE STRING,
INPER TYPE STRING,
FPPER TYPE STRING,
JUPER TYPE STRING,
ABKRS TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
BONDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
FPBEG TYPE STRING,
IPEND TYPE STRING,
ENDDA TYPE STRING,
PAYDT TYPE STRING,
AUSFD TYPE STRING,
BTZNR TYPE STRING,
LGART TYPE STRING,
BETRG TYPE STRING,
ZLSCH TYPE STRING,
EMFTX TYPE STRING,
BKPLZ TYPE STRING,
BKORT TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
EMFSL TYPE STRING,
ZWECK TYPE STRING,
VBAFM TYPE STRING,
DTADT TYPE STRING,
DTATI TYPE STRING,
DTAID TYPE STRING,
BTTYP TYPE STRING,
PSKTO TYPE STRING,
WAERS TYPE STRING,
STRAS TYPE STRING,
BKONT TYPE STRING,
FBETR TYPE STRING,
STATE TYPE STRING,
ESRNR TYPE STRING,
ESRRE TYPE STRING,
ESRPZ TYPE STRING,
BKREF TYPE STRING,
CTRNS TYPE STRING,
IBAN TYPE STRING,
CRDID TYPE STRING,
MNDID TYPE STRING,
DD_DUEDATE_SEPA TYPE STRING,
ADRS_BANKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T77PAYKZBT_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_T77PAYKZBT_STR-MANDT sy-vline 
WA_T77PAYKZBT_STR-PERNR sy-vline 
WA_T77PAYKZBT_STR-SEQNR sy-vline 
WA_T77PAYKZBT_STR-BTQNR sy-vline 
WA_T77PAYKZBT_STR-GPVAL sy-vline 
WA_T77PAYKZBT_STR-SRTZA sy-vline 
WA_T77PAYKZBT_STR-IPERM sy-vline 
WA_T77PAYKZBT_STR-INPER sy-vline 
WA_T77PAYKZBT_STR-FPPER sy-vline 
WA_T77PAYKZBT_STR-JUPER sy-vline 
WA_T77PAYKZBT_STR-ABKRS sy-vline 
WA_T77PAYKZBT_STR-PAYTY sy-vline 
WA_T77PAYKZBT_STR-PAYID sy-vline 
WA_T77PAYKZBT_STR-BONDT sy-vline 
WA_T77PAYKZBT_STR-LAUFD sy-vline 
WA_T77PAYKZBT_STR-LAUFI sy-vline 
WA_T77PAYKZBT_STR-FPBEG sy-vline 
WA_T77PAYKZBT_STR-IPEND sy-vline 
WA_T77PAYKZBT_STR-ENDDA sy-vline 
WA_T77PAYKZBT_STR-PAYDT sy-vline 
WA_T77PAYKZBT_STR-AUSFD sy-vline 
WA_T77PAYKZBT_STR-BTZNR sy-vline 
WA_T77PAYKZBT_STR-LGART sy-vline 
WA_T77PAYKZBT_STR-BETRG sy-vline 
WA_T77PAYKZBT_STR-ZLSCH sy-vline 
WA_T77PAYKZBT_STR-EMFTX sy-vline 
WA_T77PAYKZBT_STR-BKPLZ sy-vline 
WA_T77PAYKZBT_STR-BKORT sy-vline 
WA_T77PAYKZBT_STR-BANKS sy-vline 
WA_T77PAYKZBT_STR-BANKL sy-vline 
WA_T77PAYKZBT_STR-BANKN sy-vline 
WA_T77PAYKZBT_STR-EMFSL sy-vline 
WA_T77PAYKZBT_STR-ZWECK sy-vline 
WA_T77PAYKZBT_STR-VBAFM sy-vline 
WA_T77PAYKZBT_STR-DTADT sy-vline 
WA_T77PAYKZBT_STR-DTATI sy-vline 
WA_T77PAYKZBT_STR-DTAID sy-vline 
WA_T77PAYKZBT_STR-BTTYP sy-vline 
WA_T77PAYKZBT_STR-PSKTO sy-vline 
WA_T77PAYKZBT_STR-WAERS sy-vline 
WA_T77PAYKZBT_STR-STRAS sy-vline 
WA_T77PAYKZBT_STR-BKONT sy-vline 
WA_T77PAYKZBT_STR-FBETR sy-vline 
WA_T77PAYKZBT_STR-STATE sy-vline 
WA_T77PAYKZBT_STR-ESRNR sy-vline 
WA_T77PAYKZBT_STR-ESRRE sy-vline 
WA_T77PAYKZBT_STR-ESRPZ sy-vline 
WA_T77PAYKZBT_STR-BKREF sy-vline 
WA_T77PAYKZBT_STR-CTRNS sy-vline 
WA_T77PAYKZBT_STR-IBAN sy-vline 
WA_T77PAYKZBT_STR-CRDID sy-vline 
WA_T77PAYKZBT_STR-MNDID sy-vline 
WA_T77PAYKZBT_STR-DD_DUEDATE_SEPA sy-vline 
WA_T77PAYKZBT_STR-ADRS_BANKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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