ABAP Select data from SAP table PC2BU into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2BU 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 PC2BU. 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 PC2BU 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_PC2BU TYPE STANDARD TABLE OF PC2BU,
      WA_PC2BU TYPE PC2BU,
      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: <PC2BU> TYPE PC2BU.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2BU.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2BU
  INTO TABLE IT_PC2BU.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2BU
*  INTO TABLE @DATA(IT_PC2BU2).
*--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_PC2BU INDEX 1 INTO DATA(WA_PC2BU2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2BU ASSIGNING <PC2BU>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2BU>-CNTR2 = 1.
<PC2BU>-BRIND = 1.
<PC2BU>-FAMSA = 1.
<PC2BU>-RELID = 1.
<PC2BU>-BDATE = 1.
ENDLOOP.

LOOP AT IT_PC2BU INTO WA_PC2BU.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2BU-BURPD, sy-vline,
WA_PC2BU-BURTX, sy-vline,
WA_PC2BU-BUNTX, sy-vline,
WA_PC2BU-HIEDU, sy-vline,
WA_PC2BU-DISAB, sy-vline,
ENDLOOP. *Add any further fields from structure WA_PC2BU 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_PC2BU 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_PC2BU INTO WA_PC2BU. *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_PC2BU_STR,
CNTR2 TYPE STRING,
BRIND TYPE STRING,
FAMSA TYPE STRING,
RELID TYPE STRING,
BDATE TYPE STRING,
BURPD TYPE STRING,
BURTX TYPE STRING,
BUNTX TYPE STRING,
HIEDU TYPE STRING,
DISAB TYPE STRING,END OF T_EKKO_STR. DATA: WA_PC2BU_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_PC2BU_STR-CNTR2 sy-vline
WA_PC2BU_STR-BRIND sy-vline
WA_PC2BU_STR-FAMSA sy-vline
WA_PC2BU_STR-RELID sy-vline
WA_PC2BU_STR-BDATE sy-vline
WA_PC2BU_STR-BURPD sy-vline
WA_PC2BU_STR-BURTX sy-vline
WA_PC2BU_STR-BUNTX sy-vline
WA_PC2BU_STR-HIEDU sy-vline
WA_PC2BU_STR-DISAB sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.