ABAP Select data from SAP table PES_SUFORM_I190_CERET_CABECERA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PES_SUFORM_I190_CERET_CABECERA 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 PES_SUFORM_I190_CERET_CABECERA. 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 PES_SUFORM_I190_CERET_CABECERA 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_PES_SUFORM_I190_CERET_CABECERA TYPE STANDARD TABLE OF PES_SUFORM_I190_CERET_CABECERA,
      WA_PES_SUFORM_I190_CERET_CABECERA TYPE PES_SUFORM_I190_CERET_CABECERA,
      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: <PES_SUFORM_I190_CERET_CABECERA> TYPE PES_SUFORM_I190_CERET_CABECERA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PES_SUFORM_I190_CERET_CABECERA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PES_SUFORM_I190_CERET_CABECERA
  INTO TABLE IT_PES_SUFORM_I190_CERET_CABECERA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PES_SUFORM_I190_CERET_CABECERA
*  INTO TABLE @DATA(IT_PES_SUFORM_I190_CERET_CABECERA2).
*--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_PES_SUFORM_I190_CERET_CABECERA INDEX 1 INTO DATA(WA_PES_SUFORM_I190_CERET_CABECERA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PES_SUFORM_I190_CERET_CABECERA ASSIGNING <PES_SUFORM_I190_CERET_CABECERA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PES_SUFORM_I190_CERET_CABECERA>-EJER = 1.
<PES_SUFORM_I190_CERET_CABECERA>-NIF_PER = 1.
<PES_SUFORM_I190_CERET_CABECERA>-NAME = 1.
<PES_SUFORM_I190_CERET_CABECERA>-NAME_EMPR = 1.
<PES_SUFORM_I190_CERET_CABECERA>-NIF_PRES = 1.

ENDLOOP.

LOOP AT IT_PES_SUFORM_I190_CERET_CABECERA INTO WA_PES_SUFORM_I190_CERET_CABECERA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PES_SUFORM_I190_CERET_CABECERA-SG, sy-vline,
  WA_PES_SUFORM_I190_CERET_CABECERA-VIA, sy-vline,
  WA_PES_SUFORM_I190_CERET_CABECERA-NUMO, sy-vline,
  WA_PES_SUFORM_I190_CERET_CABECERA-ESCALERA, sy-vline,
  WA_PES_SUFORM_I190_CERET_CABECERA-PISO, sy-vline,
  WA_PES_SUFORM_I190_CERET_CABECERA-PUERTA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PES_SUFORM_I190_CERET_CABECERA 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_PES_SUFORM_I190_CERET_CABECERA 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_PES_SUFORM_I190_CERET_CABECERA INTO WA_PES_SUFORM_I190_CERET_CABECERA.


*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_PES_SUFORM_I190_CERET_CABECERA_STR, 
EJER TYPE STRING,
NIF_PER TYPE STRING,
NAME TYPE STRING,
NAME_EMPR TYPE STRING,
NIF_PRES TYPE STRING,
SG TYPE STRING,
VIA TYPE STRING,
NUMO TYPE STRING,
ESCALERA TYPE STRING,
PISO TYPE STRING,
PUERTA TYPE STRING,
CPOS TYPE STRING,
MUNIC TYPE STRING,
PROVINCIA TYPE STRING,
TELN TYPE STRING,
PROV_TRA TYPE STRING,
PROV_EMP TYPE STRING,
REPRESENT TYPE STRING,
NIF TYPE STRING,
NOMBRE TYPE STRING,
TITULO TYPE STRING,
ACTIV_ECONOM TYPE STRING,
ACTIV_ECONOM_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PES_SUFORM_I190_CERET_CABECERA_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_PES_SUFORM_I190_CERET_CABECERA_STR-EJER sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-NIF_PER sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-NAME sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-NAME_EMPR sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-NIF_PRES sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-SG sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-VIA sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-NUMO sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-ESCALERA sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-PISO sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-PUERTA sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-CPOS sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-MUNIC sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-PROVINCIA sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-TELN sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-PROV_TRA sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-PROV_EMP sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-REPRESENT sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-NIF sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-NOMBRE sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-TITULO sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-ACTIV_ECONOM sy-vline 
WA_PES_SUFORM_I190_CERET_CABECERA_STR-ACTIV_ECONOM_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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