ABAP Select data from SAP table AJVA_ACCIT_EXTENSION into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AJVA_ACCIT_EXTENSION
*  INTO TABLE @DATA(IT_AJVA_ACCIT_EXTENSION2).
*--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_AJVA_ACCIT_EXTENSION INDEX 1 INTO DATA(WA_AJVA_ACCIT_EXTENSION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AJVA_ACCIT_EXTENSION>-ORECID = 1.
<AJVA_ACCIT_EXTENSION>-BILLM = 1.
<AJVA_ACCIT_EXTENSION>-POM = 1.
<AJVA_ACCIT_EXTENSION>-CBRUNID = 1.
<AJVA_ACCIT_EXTENSION>-CBRACCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AJVA_ACCIT_EXTENSION-CBOBJNR, sy-vline,
  WA_AJVA_ACCIT_EXTENSION-PVNAME, sy-vline,
  WA_AJVA_ACCIT_EXTENSION-PEGRUP, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_AJVA_ACCIT_EXTENSION 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_AJVA_ACCIT_EXTENSION 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_AJVA_ACCIT_EXTENSION INTO WA_AJVA_ACCIT_EXTENSION.


*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.

*Conversion exit ALPHA, internal->external for field ORECID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AJVA_ACCIT_EXTENSION-ORECID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AJVA_ACCIT_EXTENSION-ORECID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CBRACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AJVA_ACCIT_EXTENSION-CBRACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AJVA_ACCIT_EXTENSION-CBRACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AJVA_ACCIT_EXTENSION-PVNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AJVA_ACCIT_EXTENSION-PVNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PEGRUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AJVA_ACCIT_EXTENSION-PEGRUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AJVA_ACCIT_EXTENSION-PEGRUP.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_AJVA_ACCIT_EXTENSION_STR, 
ORECID TYPE STRING,
BILLM TYPE STRING,
POM TYPE STRING,
CBRUNID TYPE STRING,
CBRACCT TYPE STRING,
CBOBJNR TYPE STRING,
PVNAME TYPE STRING,
PEGRUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AJVA_ACCIT_EXTENSION_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_AJVA_ACCIT_EXTENSION_STR-ORECID sy-vline 
WA_AJVA_ACCIT_EXTENSION_STR-BILLM sy-vline 
WA_AJVA_ACCIT_EXTENSION_STR-POM sy-vline 
WA_AJVA_ACCIT_EXTENSION_STR-CBRUNID sy-vline 
WA_AJVA_ACCIT_EXTENSION_STR-CBRACCT sy-vline 
WA_AJVA_ACCIT_EXTENSION_STR-CBOBJNR sy-vline 
WA_AJVA_ACCIT_EXTENSION_STR-PVNAME sy-vline 
WA_AJVA_ACCIT_EXTENSION_STR-PEGRUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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