ABAP Select data from SAP table PES1900002 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PES1900002 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 PES1900002. 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 PES1900002 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_PES1900002 TYPE STANDARD TABLE OF PES1900002,
      WA_PES1900002 TYPE PES1900002,
      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: <PES1900002> TYPE PES1900002.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PES1900002.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PES1900002
  INTO TABLE IT_PES1900002.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PES1900002
*  INTO TABLE @DATA(IT_PES19000022).
*--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_PES1900002 INDEX 1 INTO DATA(WA_PES19000022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PES1900002 ASSIGNING <PES1900002>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PES1900002>-TIPO = 1.
<PES1900002>-MODEL = 1.
<PES1900002>-EJER = 1.
<PES1900002>-NIF_RET = 1.
<PES1900002>-NIF_PER = 1.

ENDLOOP.

LOOP AT IT_PES1900002 INTO WA_PES1900002.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PES1900002-NIF_REPR, sy-vline,
  WA_PES1900002-NAME, sy-vline,
  WA_PES1900002-CPROV, sy-vline,
  WA_PES1900002-CPER1, sy-vline,
  WA_PES1900002-CPER2, sy-vline,
  WA_PES1900002-SIGN1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PES1900002 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_PES1900002 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_PES1900002 INTO WA_PES1900002.


*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_PES1900002_STR, 
TIPO TYPE STRING,
MODEL TYPE STRING,
EJER TYPE STRING,
NIF_RET TYPE STRING,
NIF_PER TYPE STRING,
NIF_REPR TYPE STRING,
NAME TYPE STRING,
CPROV TYPE STRING,
CPER1 TYPE STRING,
CPER2 TYPE STRING,
SIGN1 TYPE STRING,
PER_INT TYPE STRING,
D_PER_INT TYPE STRING,
RET_PRAC TYPE STRING,
D_RET_PRAC TYPE STRING,
SIGN2 TYPE STRING,
VALOR TYPE STRING,
D_VALOR TYPE STRING,
ING_EFEC TYPE STRING,
D_ING_EFEC TYPE STRING,
ING_REPER TYPE STRING,
D_REPER TYPE STRING,
EJDEV TYPE STRING,
CEUME TYPE STRING,
TIREL TYPE STRING,
A_NAC TYPE STRING,
DISCA TYPE STRING,
SIT_FAM TYPE STRING,
NIF_CONY TYPE STRING,
DESC_3 TYPE STRING,
DESC_16 TYPE STRING,
DESC_25 TYPE STRING,
DIS_65 TYPE STRING,
DIS_100 TYPE STRING,
TOT_DESC TYPE STRING,
REDUC TYPE STRING,
D_REDUC TYPE STRING,
COTIZ TYPE STRING,
D_COTIZ TYPE STRING,
PECOM TYPE STRING,
D_PECOM TYPE STRING,
ALIME TYPE STRING,
D_ALIME TYPE STRING,
BLAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PES1900002_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_PES1900002_STR-TIPO sy-vline 
WA_PES1900002_STR-MODEL sy-vline 
WA_PES1900002_STR-EJER sy-vline 
WA_PES1900002_STR-NIF_RET sy-vline 
WA_PES1900002_STR-NIF_PER sy-vline 
WA_PES1900002_STR-NIF_REPR sy-vline 
WA_PES1900002_STR-NAME sy-vline 
WA_PES1900002_STR-CPROV sy-vline 
WA_PES1900002_STR-CPER1 sy-vline 
WA_PES1900002_STR-CPER2 sy-vline 
WA_PES1900002_STR-SIGN1 sy-vline 
WA_PES1900002_STR-PER_INT sy-vline 
WA_PES1900002_STR-D_PER_INT sy-vline 
WA_PES1900002_STR-RET_PRAC sy-vline 
WA_PES1900002_STR-D_RET_PRAC sy-vline 
WA_PES1900002_STR-SIGN2 sy-vline 
WA_PES1900002_STR-VALOR sy-vline 
WA_PES1900002_STR-D_VALOR sy-vline 
WA_PES1900002_STR-ING_EFEC sy-vline 
WA_PES1900002_STR-D_ING_EFEC sy-vline 
WA_PES1900002_STR-ING_REPER sy-vline 
WA_PES1900002_STR-D_REPER sy-vline 
WA_PES1900002_STR-EJDEV sy-vline 
WA_PES1900002_STR-CEUME sy-vline 
WA_PES1900002_STR-TIREL sy-vline 
WA_PES1900002_STR-A_NAC sy-vline 
WA_PES1900002_STR-DISCA sy-vline 
WA_PES1900002_STR-SIT_FAM sy-vline 
WA_PES1900002_STR-NIF_CONY sy-vline 
WA_PES1900002_STR-DESC_3 sy-vline 
WA_PES1900002_STR-DESC_16 sy-vline 
WA_PES1900002_STR-DESC_25 sy-vline 
WA_PES1900002_STR-DIS_65 sy-vline 
WA_PES1900002_STR-DIS_100 sy-vline 
WA_PES1900002_STR-TOT_DESC sy-vline 
WA_PES1900002_STR-REDUC sy-vline 
WA_PES1900002_STR-D_REDUC sy-vline 
WA_PES1900002_STR-COTIZ sy-vline 
WA_PES1900002_STR-D_COTIZ sy-vline 
WA_PES1900002_STR-PECOM sy-vline 
WA_PES1900002_STR-D_PECOM sy-vline 
WA_PES1900002_STR-ALIME sy-vline 
WA_PES1900002_STR-D_ALIME sy-vline 
WA_PES1900002_STR-BLAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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