ABAP Select data from SAP table TJHPRINT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TJHPRINT
*  INTO TABLE @DATA(IT_TJHPRINT2).
*--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_TJHPRINT INDEX 1 INTO DATA(WA_TJHPRINT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TJHPRINT>-MANDT = 1.
<TJHPRINT>-PRN_EVENT = 1.
<TJHPRINT>-BNAME = 1.
<TJHPRINT>-VKGRP = 1.
<TJHPRINT>-VKBUR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TJHPRINT-CALL_TYPE, sy-vline,
  WA_TJHPRINT-PGNAM, sy-vline,
  WA_TJHPRINT-RONAM, sy-vline,
  WA_TJHPRINT-FONAM, sy-vline,
  WA_TJHPRINT-XDIALOG, sy-vline,
  WA_TJHPRINT-DEVICE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TJHPRINT 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_TJHPRINT 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_TJHPRINT INTO WA_TJHPRINT.


*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 SPDEV, internal->external for field TDDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_TJHPRINT-TDDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TJHPRINT-TDDEST.
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_TJHPRINT_STR, 
MANDT TYPE STRING,
PRN_EVENT TYPE STRING,
BNAME TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
CALL_TYPE TYPE STRING,
PGNAM TYPE STRING,
RONAM TYPE STRING,
FONAM TYPE STRING,
XDIALOG TYPE STRING,
DEVICE TYPE STRING,
TDPAGESLCT TYPE STRING,
TDCOPIES TYPE STRING,
TDDEST TYPE STRING,
TDPREVIEW TYPE STRING,
TDNOPREV TYPE STRING,
TDNOPRINT TYPE STRING,
TDNEWID TYPE STRING,
TDDATASET TYPE STRING,
TDSUFFIX1 TYPE STRING,
TDSUFFIX2 TYPE STRING,
TDIMMED TYPE STRING,
TDDELETE TYPE STRING,
TDLIFETIME TYPE STRING,
TDTELELAND TYPE STRING,
TDTELENUM TYPE STRING,
TDTITLE TYPE STRING,
TDCOVER TYPE STRING,
TDCOVTITLE TYPE STRING,
TDRECEIVER TYPE STRING,
TDDIVISION TYPE STRING,
TDAUTORITY TYPE STRING,
SFORM TYPE STRING,
FORMTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TJHPRINT_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_TJHPRINT_STR-MANDT sy-vline 
WA_TJHPRINT_STR-PRN_EVENT sy-vline 
WA_TJHPRINT_STR-BNAME sy-vline 
WA_TJHPRINT_STR-VKGRP sy-vline 
WA_TJHPRINT_STR-VKBUR sy-vline 
WA_TJHPRINT_STR-CALL_TYPE sy-vline 
WA_TJHPRINT_STR-PGNAM sy-vline 
WA_TJHPRINT_STR-RONAM sy-vline 
WA_TJHPRINT_STR-FONAM sy-vline 
WA_TJHPRINT_STR-XDIALOG sy-vline 
WA_TJHPRINT_STR-DEVICE sy-vline 
WA_TJHPRINT_STR-TDPAGESLCT sy-vline 
WA_TJHPRINT_STR-TDCOPIES sy-vline 
WA_TJHPRINT_STR-TDDEST sy-vline 
WA_TJHPRINT_STR-TDPREVIEW sy-vline 
WA_TJHPRINT_STR-TDNOPREV sy-vline 
WA_TJHPRINT_STR-TDNOPRINT sy-vline 
WA_TJHPRINT_STR-TDNEWID sy-vline 
WA_TJHPRINT_STR-TDDATASET sy-vline 
WA_TJHPRINT_STR-TDSUFFIX1 sy-vline 
WA_TJHPRINT_STR-TDSUFFIX2 sy-vline 
WA_TJHPRINT_STR-TDIMMED sy-vline 
WA_TJHPRINT_STR-TDDELETE sy-vline 
WA_TJHPRINT_STR-TDLIFETIME sy-vline 
WA_TJHPRINT_STR-TDTELELAND sy-vline 
WA_TJHPRINT_STR-TDTELENUM sy-vline 
WA_TJHPRINT_STR-TDTITLE sy-vline 
WA_TJHPRINT_STR-TDCOVER sy-vline 
WA_TJHPRINT_STR-TDCOVTITLE sy-vline 
WA_TJHPRINT_STR-TDRECEIVER sy-vline 
WA_TJHPRINT_STR-TDDIVISION sy-vline 
WA_TJHPRINT_STR-TDAUTORITY sy-vline 
WA_TJHPRINT_STR-SFORM sy-vline 
WA_TJHPRINT_STR-FORMTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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