ABAP Select data from SAP table TJHTINT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TJHTINT
*  INTO TABLE @DATA(IT_TJHTINT2).
*--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_TJHTINT INDEX 1 INTO DATA(WA_TJHTINT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TJHTINT>-MANDT = 1.
<TJHTINT>-XADDESIGN = 1.
<TJHTINT>-XPOS = 1.
<TJHTINT>-XPOSDIALOG = 1.
<TJHTINT>-XORDSAVE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TJHTINT-XORDCANCEL, sy-vline,
  WA_TJHTINT-XTSSTART, sy-vline,
  WA_TJHTINT-XPRODFINIS, sy-vline,
  WA_TJHTINT-XSTAGET, sy-vline,
  WA_TJHTINT-XSTAGETALL, sy-vline,
  WA_TJHTINT-XSTAUPDTS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TJHTINT 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_TJHTINT 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_TJHTINT INTO WA_TJHTINT.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_TJHTINT_STR, 
MANDT TYPE STRING,
XADDESIGN TYPE STRING,
XPOS TYPE STRING,
XPOSDIALOG TYPE STRING,
XORDSAVE TYPE STRING,
XORDCANCEL TYPE STRING,
XTSSTART TYPE STRING,
XPRODFINIS TYPE STRING,
XSTAGET TYPE STRING,
XSTAGETALL TYPE STRING,
XSTAUPDTS TYPE STRING,
XSTAUPDPAM TYPE STRING,
XGPDATAGET TYPE STRING,
XORDUPDPAM TYPE STRING,
XTSORDSAVE TYPE STRING,
XEXCHERROR TYPE STRING,
XORDUPDMAM_OL TYPE STRING,
XPOS_OL TYPE STRING,
XPOSDIALOG_OL TYPE STRING,
XORDCANCEL_OL TYPE STRING,
XUSE_QRFC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TJHTINT_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_TJHTINT_STR-MANDT sy-vline 
WA_TJHTINT_STR-XADDESIGN sy-vline 
WA_TJHTINT_STR-XPOS sy-vline 
WA_TJHTINT_STR-XPOSDIALOG sy-vline 
WA_TJHTINT_STR-XORDSAVE sy-vline 
WA_TJHTINT_STR-XORDCANCEL sy-vline 
WA_TJHTINT_STR-XTSSTART sy-vline 
WA_TJHTINT_STR-XPRODFINIS sy-vline 
WA_TJHTINT_STR-XSTAGET sy-vline 
WA_TJHTINT_STR-XSTAGETALL sy-vline 
WA_TJHTINT_STR-XSTAUPDTS sy-vline 
WA_TJHTINT_STR-XSTAUPDPAM sy-vline 
WA_TJHTINT_STR-XGPDATAGET sy-vline 
WA_TJHTINT_STR-XORDUPDPAM sy-vline 
WA_TJHTINT_STR-XTSORDSAVE sy-vline 
WA_TJHTINT_STR-XEXCHERROR sy-vline 
WA_TJHTINT_STR-XORDUPDMAM_OL sy-vline 
WA_TJHTINT_STR-XPOS_OL sy-vline 
WA_TJHTINT_STR-XPOSDIALOG_OL sy-vline 
WA_TJHTINT_STR-XORDCANCEL_OL sy-vline 
WA_TJHTINT_STR-XUSE_QRFC sy-vline      INTO ld_text SEPARATED BY SPACE.

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