ABAP Select data from SAP table T8JFRM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T8JFRM 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 T8JFRM. 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 T8JFRM 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_T8JFRM TYPE STANDARD TABLE OF T8JFRM,
      WA_T8JFRM TYPE T8JFRM,
      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: <T8JFRM> TYPE T8JFRM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T8JFRM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T8JFRM
  INTO TABLE IT_T8JFRM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T8JFRM
*  INTO TABLE @DATA(IT_T8JFRM2).
*--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_T8JFRM INDEX 1 INTO DATA(WA_T8JFRM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T8JFRM ASSIGNING <T8JFRM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T8JFRM>-MANDT = 1.
<T8JFRM>-BUKRS = 1.
<T8JFRM>-FRM_NAME = 1.
<T8JFRM>-VNAME = 1.
<T8JFRM>-EG_NEW = 1.

ENDLOOP.

LOOP AT IT_T8JFRM INTO WA_T8JFRM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T8JFRM-PER_FROM, sy-vline,
  WA_T8JFRM-YEAR_FROM, sy-vline,
  WA_T8JFRM-ITD, sy-vline,
  WA_T8JFRM-PER_TO, sy-vline,
  WA_T8JFRM-YEAR_TO, sy-vline,
  WA_T8JFRM-POST_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T8JFRM 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_T8JFRM 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_T8JFRM INTO WA_T8JFRM.


*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 VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JFRM-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JFRM-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EG_NEW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JFRM-EG_NEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JFRM-EG_NEW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field YEAR_FROM
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_T8JFRM-YEAR_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JFRM-YEAR_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field YEAR_TO
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_T8JFRM-YEAR_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JFRM-YEAR_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field POST_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_T8JFRM-POST_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JFRM-POST_YEAR.
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_T8JFRM_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
FRM_NAME TYPE STRING,
VNAME TYPE STRING,
EG_NEW TYPE STRING,
PER_FROM TYPE STRING,
YEAR_FROM TYPE STRING,
ITD TYPE STRING,
PER_TO TYPE STRING,
YEAR_TO TYPE STRING,
POST_DATE TYPE STRING,
DOC_DATE TYPE STRING,
POST_YEAR TYPE STRING,
POST_PER TYPE STRING,
POST_TEXT TYPE STRING,
RECID_TYPE TYPE STRING,
OLD_EG_BLOCKED TYPE STRING,
PROCESS_COMPL TYPE STRING,
CPUTIME TYPE STRING,
CPUDT TYPE STRING,
LST_USER TYPE STRING,
PROC_TYPE TYPE STRING,
CTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T8JFRM_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_T8JFRM_STR-MANDT sy-vline 
WA_T8JFRM_STR-BUKRS sy-vline 
WA_T8JFRM_STR-FRM_NAME sy-vline 
WA_T8JFRM_STR-VNAME sy-vline 
WA_T8JFRM_STR-EG_NEW sy-vline 
WA_T8JFRM_STR-PER_FROM sy-vline 
WA_T8JFRM_STR-YEAR_FROM sy-vline 
WA_T8JFRM_STR-ITD sy-vline 
WA_T8JFRM_STR-PER_TO sy-vline 
WA_T8JFRM_STR-YEAR_TO sy-vline 
WA_T8JFRM_STR-POST_DATE sy-vline 
WA_T8JFRM_STR-DOC_DATE sy-vline 
WA_T8JFRM_STR-POST_YEAR sy-vline 
WA_T8JFRM_STR-POST_PER sy-vline 
WA_T8JFRM_STR-POST_TEXT sy-vline 
WA_T8JFRM_STR-RECID_TYPE sy-vline 
WA_T8JFRM_STR-OLD_EG_BLOCKED sy-vline 
WA_T8JFRM_STR-PROCESS_COMPL sy-vline 
WA_T8JFRM_STR-CPUTIME sy-vline 
WA_T8JFRM_STR-CPUDT sy-vline 
WA_T8JFRM_STR-LST_USER sy-vline 
WA_T8JFRM_STR-PROC_TYPE sy-vline 
WA_T8JFRM_STR-CTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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