ABAP Select data from SAP table T77PAYUS_TXCMP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T77PAYUS_TXCMP 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 T77PAYUS_TXCMP. 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 T77PAYUS_TXCMP 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_T77PAYUS_TXCMP TYPE STANDARD TABLE OF T77PAYUS_TXCMP,
      WA_T77PAYUS_TXCMP TYPE T77PAYUS_TXCMP,
      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: <T77PAYUS_TXCMP> TYPE T77PAYUS_TXCMP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T77PAYUS_TXCMP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T77PAYUS_TXCMP
  INTO TABLE IT_T77PAYUS_TXCMP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T77PAYUS_TXCMP
*  INTO TABLE @DATA(IT_T77PAYUS_TXCMP2).
*--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_T77PAYUS_TXCMP INDEX 1 INTO DATA(WA_T77PAYUS_TXCMP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T77PAYUS_TXCMP ASSIGNING <T77PAYUS_TXCMP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T77PAYUS_TXCMP>-MANDT = 1.
<T77PAYUS_TXCMP>-TXCMP = 1.
<T77PAYUS_TXCMP>-ENDDA = 1.
<T77PAYUS_TXCMP>-BEGDA = 1.
<T77PAYUS_TXCMP>-ALEAK = 1.

ENDLOOP.

LOOP AT IT_T77PAYUS_TXCMP INTO WA_T77PAYUS_TXCMP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T77PAYUS_TXCMP-COELA, sy-vline,
  WA_T77PAYUS_TXCMP-COELB, sy-vline,
  WA_T77PAYUS_TXCMP-COELC, sy-vline,
  WA_T77PAYUS_TXCMP-COELD, sy-vline,
  WA_T77PAYUS_TXCMP-DGEAK, sy-vline,
  WA_T77PAYUS_TXCMP-MIECI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T77PAYUS_TXCMP 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_T77PAYUS_TXCMP 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_T77PAYUS_TXCMP INTO WA_T77PAYUS_TXCMP.


*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_T77PAYUS_TXCMP_STR, 
MANDT TYPE STRING,
TXCMP TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
ALEAK TYPE STRING,
COELA TYPE STRING,
COELB TYPE STRING,
COELC TYPE STRING,
COELD TYPE STRING,
DGEAK TYPE STRING,
MIECI TYPE STRING,
SHCID TYPE STRING,
EIDNO TYPE STRING,
OOPOL TYPE STRING,
TCCOD TYPE STRING,
ALE_GROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T77PAYUS_TXCMP_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_T77PAYUS_TXCMP_STR-MANDT sy-vline 
WA_T77PAYUS_TXCMP_STR-TXCMP sy-vline 
WA_T77PAYUS_TXCMP_STR-ENDDA sy-vline 
WA_T77PAYUS_TXCMP_STR-BEGDA sy-vline 
WA_T77PAYUS_TXCMP_STR-ALEAK sy-vline 
WA_T77PAYUS_TXCMP_STR-COELA sy-vline 
WA_T77PAYUS_TXCMP_STR-COELB sy-vline 
WA_T77PAYUS_TXCMP_STR-COELC sy-vline 
WA_T77PAYUS_TXCMP_STR-COELD sy-vline 
WA_T77PAYUS_TXCMP_STR-DGEAK sy-vline 
WA_T77PAYUS_TXCMP_STR-MIECI sy-vline 
WA_T77PAYUS_TXCMP_STR-SHCID sy-vline 
WA_T77PAYUS_TXCMP_STR-EIDNO sy-vline 
WA_T77PAYUS_TXCMP_STR-OOPOL sy-vline 
WA_T77PAYUS_TXCMP_STR-TCCOD sy-vline 
WA_T77PAYUS_TXCMP_STR-ALE_GROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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