ABAP Select data from SAP table BSB_CENTPX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BSB_CENTPX
*  INTO TABLE @DATA(IT_BSB_CENTPX2).
*--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_BSB_CENTPX INDEX 1 INTO DATA(WA_BSB_CENTPX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BSB_CENTPX>-FIRSTNAME = 1.
<BSB_CENTPX>-LASTNAME = 1.
<BSB_CENTPX>-BIRTHNAME = 1.
<BSB_CENTPX>-MIDDLENAME = 1.
<BSB_CENTPX>-SECONDNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BSB_CENTPX-TITLE_ACA1, sy-vline,
  WA_BSB_CENTPX-TITLE_ACA2, sy-vline,
  WA_BSB_CENTPX-TITLE_SPPL, sy-vline,
  WA_BSB_CENTPX-PREFIX1, sy-vline,
  WA_BSB_CENTPX-PREFIX2, sy-vline,
  WA_BSB_CENTPX-NICKNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BSB_CENTPX 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_BSB_CENTPX 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_BSB_CENTPX INTO WA_BSB_CENTPX.


*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_BSB_CENTPX_STR, 
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
BIRTHNAME TYPE STRING,
MIDDLENAME TYPE STRING,
SECONDNAME TYPE STRING,
TITLE_ACA1 TYPE STRING,
TITLE_ACA2 TYPE STRING,
TITLE_SPPL TYPE STRING,
PREFIX1 TYPE STRING,
PREFIX2 TYPE STRING,
NICKNAME TYPE STRING,
INITIALS TYPE STRING,
NAMEFORMAT TYPE STRING,
NAMCOUNTRY TYPE STRING,
NAMCOUNISO TYPE STRING,
SEX TYPE STRING,
BIRTHPLACE TYPE STRING,
BIRTHDATE TYPE STRING,
DEATHDATE TYPE STRING,
MARITALSTA TYPE STRING,
CORRLAN TYPE STRING,
CORRLANISO TYPE STRING,
FULLNAME TYPE STRING,
EMPLOYER TYPE STRING,
OCCUPATION TYPE STRING,
NATIO TYPE STRING,
NATIOISO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BSB_CENTPX_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_BSB_CENTPX_STR-FIRSTNAME sy-vline 
WA_BSB_CENTPX_STR-LASTNAME sy-vline 
WA_BSB_CENTPX_STR-BIRTHNAME sy-vline 
WA_BSB_CENTPX_STR-MIDDLENAME sy-vline 
WA_BSB_CENTPX_STR-SECONDNAME sy-vline 
WA_BSB_CENTPX_STR-TITLE_ACA1 sy-vline 
WA_BSB_CENTPX_STR-TITLE_ACA2 sy-vline 
WA_BSB_CENTPX_STR-TITLE_SPPL sy-vline 
WA_BSB_CENTPX_STR-PREFIX1 sy-vline 
WA_BSB_CENTPX_STR-PREFIX2 sy-vline 
WA_BSB_CENTPX_STR-NICKNAME sy-vline 
WA_BSB_CENTPX_STR-INITIALS sy-vline 
WA_BSB_CENTPX_STR-NAMEFORMAT sy-vline 
WA_BSB_CENTPX_STR-NAMCOUNTRY sy-vline 
WA_BSB_CENTPX_STR-NAMCOUNISO sy-vline 
WA_BSB_CENTPX_STR-SEX sy-vline 
WA_BSB_CENTPX_STR-BIRTHPLACE sy-vline 
WA_BSB_CENTPX_STR-BIRTHDATE sy-vline 
WA_BSB_CENTPX_STR-DEATHDATE sy-vline 
WA_BSB_CENTPX_STR-MARITALSTA sy-vline 
WA_BSB_CENTPX_STR-CORRLAN sy-vline 
WA_BSB_CENTPX_STR-CORRLANISO sy-vline 
WA_BSB_CENTPX_STR-FULLNAME sy-vline 
WA_BSB_CENTPX_STR-EMPLOYER sy-vline 
WA_BSB_CENTPX_STR-OCCUPATION sy-vline 
WA_BSB_CENTPX_STR-NATIO sy-vline 
WA_BSB_CENTPX_STR-NATIOISO sy-vline      INTO ld_text SEPARATED BY SPACE.

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