ABAP Select data from SAP table RJFREVVA_ISSUE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJFREVVA_ISSUE
*  INTO TABLE @DATA(IT_RJFREVVA_ISSUE2).
*--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_RJFREVVA_ISSUE INDEX 1 INTO DATA(WA_RJFREVVA_ISSUE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJFREVVA_ISSUE>-MANDT = 1.
<RJFREVVA_ISSUE>-VKORG = 1.
<RJFREVVA_ISSUE>-SAKNR = 1.
<RJFREVVA_ISSUE>-SAKNR_REV = 1.
<RJFREVVA_ISSUE>-DRERZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJFREVVA_ISSUE-PVA, sy-vline,
  WA_RJFREVVA_ISSUE-VAUSGB, sy-vline,
  WA_RJFREVVA_ISSUE-COPAOBJNR, sy-vline,
  WA_RJFREVVA_ISSUE-GSBER, sy-vline,
  WA_RJFREVVA_ISSUE-WAERK, sy-vline,
  WA_RJFREVVA_ISSUE-KURST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJFREVVA_ISSUE 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_RJFREVVA_ISSUE 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_RJFREVVA_ISSUE INTO WA_RJFREVVA_ISSUE.


*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 SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJFREVVA_ISSUE-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJFREVVA_ISSUE-SAKNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit EXCRT, internal->external for field UKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RJFREVVA_ISSUE-UKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJFREVVA_ISSUE-UKURS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RJFREVVA_ISSUE-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJFREVVA_ISSUE-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJFREVVA_ISSUE-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJFREVVA_ISSUE-AWREF.
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_RJFREVVA_ISSUE_STR, 
MANDT TYPE STRING,
VKORG TYPE STRING,
SAKNR TYPE STRING,
SAKNR_REV TYPE STRING,
DRERZ TYPE STRING,
PVA TYPE STRING,
VAUSGB TYPE STRING,
COPAOBJNR TYPE STRING,
GSBER TYPE STRING,
WAERK TYPE STRING,
KURST TYPE STRING,
UKURS TYPE STRING,
UEBNR TYPE STRING,
ZUKRI TYPE STRING,
XFICA_ACTIVE TYPE STRING,
WRBTR TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
AWREF TYPE STRING,
ERSCHDAT TYPE STRING,
HEFTNUMMER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJFREVVA_ISSUE_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_RJFREVVA_ISSUE_STR-MANDT sy-vline 
WA_RJFREVVA_ISSUE_STR-VKORG sy-vline 
WA_RJFREVVA_ISSUE_STR-SAKNR sy-vline 
WA_RJFREVVA_ISSUE_STR-SAKNR_REV sy-vline 
WA_RJFREVVA_ISSUE_STR-DRERZ sy-vline 
WA_RJFREVVA_ISSUE_STR-PVA sy-vline 
WA_RJFREVVA_ISSUE_STR-VAUSGB sy-vline 
WA_RJFREVVA_ISSUE_STR-COPAOBJNR sy-vline 
WA_RJFREVVA_ISSUE_STR-GSBER sy-vline 
WA_RJFREVVA_ISSUE_STR-WAERK sy-vline 
WA_RJFREVVA_ISSUE_STR-KURST sy-vline 
WA_RJFREVVA_ISSUE_STR-UKURS sy-vline 
WA_RJFREVVA_ISSUE_STR-UEBNR sy-vline 
WA_RJFREVVA_ISSUE_STR-ZUKRI sy-vline 
WA_RJFREVVA_ISSUE_STR-XFICA_ACTIVE sy-vline 
WA_RJFREVVA_ISSUE_STR-WRBTR sy-vline 
WA_RJFREVVA_ISSUE_STR-BELNR sy-vline 
WA_RJFREVVA_ISSUE_STR-GJAHR sy-vline 
WA_RJFREVVA_ISSUE_STR-AWREF sy-vline 
WA_RJFREVVA_ISSUE_STR-ERSCHDAT sy-vline 
WA_RJFREVVA_ISSUE_STR-HEFTNUMMER sy-vline      INTO ld_text SEPARATED BY SPACE.

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