ABAP Select data from SAP table T8JTPM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T8JTPM 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 T8JTPM. 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 T8JTPM 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_T8JTPM TYPE STANDARD TABLE OF T8JTPM,
      WA_T8JTPM TYPE T8JTPM,
      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: <T8JTPM> TYPE T8JTPM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T8JTPM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T8JTPM
  INTO TABLE IT_T8JTPM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T8JTPM
*  INTO TABLE @DATA(IT_T8JTPM2).
*--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_T8JTPM INDEX 1 INTO DATA(WA_T8JTPM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T8JTPM ASSIGNING <T8JTPM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T8JTPM>-RCLNT = 1.
<T8JTPM>-RRCTY = 1.
<T8JTPM>-RVERS = 1.
<T8JTPM>-RYEAR = 1.
<T8JTPM>-ROBJNR = 1.

ENDLOOP.

LOOP AT IT_T8JTPM INTO WA_T8JTPM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T8JTPM-COBJNR, sy-vline,
  WA_T8JTPM-SOBJNR, sy-vline,
  WA_T8JTPM-RTCUR, sy-vline,
  WA_T8JTPM-RUNIT, sy-vline,
  WA_T8JTPM-DRCRK, sy-vline,
  WA_T8JTPM-POPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T8JTPM 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_T8JTPM 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_T8JTPM INTO WA_T8JTPM.


*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 RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JTPM-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JTPM-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_T8JTPM-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JTPM-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_T8JTPM-RUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JTPM-RUNIT.
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_T8JTPM_STR, 
RCLNT TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
RYEAR TYPE STRING,
ROBJNR TYPE STRING,
COBJNR TYPE STRING,
SOBJNR TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
DRCRK TYPE STRING,
POPER TYPE STRING,
PRODPER TYPE STRING,
RBUKRS TYPE STRING,
TSLA TYPE STRING,
HSLA TYPE STRING,
KSLA TYPE STRING,
HSLC TYPE STRING,
KSLC TYPE STRING,
MSLA TYPE STRING,
C_TSLA TYPE STRING,
C_HSLA TYPE STRING,
C_KSLA TYPE STRING,
C_HSLC TYPE STRING,
C_KSLC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T8JTPM_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_T8JTPM_STR-RCLNT sy-vline 
WA_T8JTPM_STR-RRCTY sy-vline 
WA_T8JTPM_STR-RVERS sy-vline 
WA_T8JTPM_STR-RYEAR sy-vline 
WA_T8JTPM_STR-ROBJNR sy-vline 
WA_T8JTPM_STR-COBJNR sy-vline 
WA_T8JTPM_STR-SOBJNR sy-vline 
WA_T8JTPM_STR-RTCUR sy-vline 
WA_T8JTPM_STR-RUNIT sy-vline 
WA_T8JTPM_STR-DRCRK sy-vline 
WA_T8JTPM_STR-POPER sy-vline 
WA_T8JTPM_STR-PRODPER sy-vline 
WA_T8JTPM_STR-RBUKRS sy-vline 
WA_T8JTPM_STR-TSLA sy-vline 
WA_T8JTPM_STR-HSLA sy-vline 
WA_T8JTPM_STR-KSLA sy-vline 
WA_T8JTPM_STR-HSLC sy-vline 
WA_T8JTPM_STR-KSLC sy-vline 
WA_T8JTPM_STR-MSLA sy-vline 
WA_T8JTPM_STR-C_TSLA sy-vline 
WA_T8JTPM_STR-C_HSLA sy-vline 
WA_T8JTPM_STR-C_KSLA sy-vline 
WA_T8JTPM_STR-C_HSLC sy-vline 
WA_T8JTPM_STR-C_KSLC sy-vline      INTO ld_text SEPARATED BY SPACE.

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