ABAP Select data from SAP table TJD57 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TJD57 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 TJD57. 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 TJD57 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_TJD57 TYPE STANDARD TABLE OF TJD57,
      WA_TJD57 TYPE TJD57,
      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: <TJD57> TYPE TJD57.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TJD57.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TJD57
  INTO TABLE IT_TJD57.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TJD57
*  INTO TABLE @DATA(IT_TJD572).
*--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_TJD57 INDEX 1 INTO DATA(WA_TJD572).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TJD57 ASSIGNING <TJD57>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TJD57>-MANDT = 1.
<TJD57>-AUFMELDART = 1.
<TJD57>-FM_CIRC_CAT = 1.
<TJD57>-UPD_PRG_CIRC = 1.
<TJD57>-UPD_FM_ORDR = 1.

ENDLOOP.

LOOP AT IT_TJD57 INTO WA_TJD57.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TJD57-UPD_FM_REMI, sy-vline,
  WA_TJD57-FM_REMI_DAT, sy-vline,
  WA_TJD57-UPD_PRG_STATMT, sy-vline,
  WA_TJD57-XBEZUGSTYP, sy-vline,
  WA_TJD57-XFKPER, sy-vline,
  WA_TJD57-XPRSPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TJD57 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_TJD57 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_TJD57 INTO WA_TJD57.


*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 AUFMELDART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TJD57-AUFMELDART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TJD57-AUFMELDART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PZVARCB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TJD57-PZVARCB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TJD57-PZVARCB.
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_TJD57_STR, 
MANDT TYPE STRING,
AUFMELDART TYPE STRING,
FM_CIRC_CAT TYPE STRING,
UPD_PRG_CIRC TYPE STRING,
UPD_FM_ORDR TYPE STRING,
UPD_FM_REMI TYPE STRING,
FM_REMI_DAT TYPE STRING,
UPD_PRG_STATMT TYPE STRING,
XBEZUGSTYP TYPE STRING,
XFKPER TYPE STRING,
XPRSPER TYPE STRING,
XKONDA TYPE STRING,
XRCODE TYPE STRING,
XKABEZPRS TYPE STRING,
XBEZPRS TYPE STRING,
XUMSKZ TYPE STRING,
XKDGRP TYPE STRING,
XVKORG TYPE STRING,
XVTWEG TYPE STRING,
XZLSCH TYPE STRING,
XAUART TYPE STRING,
XPOART TYPE STRING,
XLFARTAU TYPE STRING,
XLFARTLOG TYPE STRING,
XLANDAKT TYPE STRING,
XZIP TYPE STRING,
XZIPZONE TYPE STRING,
XWERK TYPE STRING,
XKGS TYPE STRING,
PZVARCB TYPE STRING,
XCFIELD1REL TYPE STRING,
XCFIELD2REL TYPE STRING,
XCFIELD3REL TYPE STRING,
XCFIELD4REL TYPE STRING,
XCFIELD5REL TYPE STRING,
XCFIELD6REL TYPE STRING,
FM_CFIELDS TYPE STRING,
FM_CFIELDS_SD TYPE STRING,
FM_CFIELDS_SO TYPE STRING,
FM_CIRC_CAT_SD TYPE STRING,
FM_CIRC_CAT_SO TYPE STRING,
XCOUNCREL TYPE STRING,
XPOSTEINORTREL TYPE STRING,
XNDM_ABC_ZONEREL TYPE STRING,
XTRAD_ABC_ZONERE TYPE STRING,
XBEZPERREL TYPE STRING,
XWEEKDAYREL TYPE STRING,
XWERBEAKTREL TYPE STRING,
XREGIOREL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TJD57_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_TJD57_STR-MANDT sy-vline 
WA_TJD57_STR-AUFMELDART sy-vline 
WA_TJD57_STR-FM_CIRC_CAT sy-vline 
WA_TJD57_STR-UPD_PRG_CIRC sy-vline 
WA_TJD57_STR-UPD_FM_ORDR sy-vline 
WA_TJD57_STR-UPD_FM_REMI sy-vline 
WA_TJD57_STR-FM_REMI_DAT sy-vline 
WA_TJD57_STR-UPD_PRG_STATMT sy-vline 
WA_TJD57_STR-XBEZUGSTYP sy-vline 
WA_TJD57_STR-XFKPER sy-vline 
WA_TJD57_STR-XPRSPER sy-vline 
WA_TJD57_STR-XKONDA sy-vline 
WA_TJD57_STR-XRCODE sy-vline 
WA_TJD57_STR-XKABEZPRS sy-vline 
WA_TJD57_STR-XBEZPRS sy-vline 
WA_TJD57_STR-XUMSKZ sy-vline 
WA_TJD57_STR-XKDGRP sy-vline 
WA_TJD57_STR-XVKORG sy-vline 
WA_TJD57_STR-XVTWEG sy-vline 
WA_TJD57_STR-XZLSCH sy-vline 
WA_TJD57_STR-XAUART sy-vline 
WA_TJD57_STR-XPOART sy-vline 
WA_TJD57_STR-XLFARTAU sy-vline 
WA_TJD57_STR-XLFARTLOG sy-vline 
WA_TJD57_STR-XLANDAKT sy-vline 
WA_TJD57_STR-XZIP sy-vline 
WA_TJD57_STR-XZIPZONE sy-vline 
WA_TJD57_STR-XWERK sy-vline 
WA_TJD57_STR-XKGS sy-vline 
WA_TJD57_STR-PZVARCB sy-vline 
WA_TJD57_STR-XCFIELD1REL sy-vline 
WA_TJD57_STR-XCFIELD2REL sy-vline 
WA_TJD57_STR-XCFIELD3REL sy-vline 
WA_TJD57_STR-XCFIELD4REL sy-vline 
WA_TJD57_STR-XCFIELD5REL sy-vline 
WA_TJD57_STR-XCFIELD6REL sy-vline 
WA_TJD57_STR-FM_CFIELDS sy-vline 
WA_TJD57_STR-FM_CFIELDS_SD sy-vline 
WA_TJD57_STR-FM_CFIELDS_SO sy-vline 
WA_TJD57_STR-FM_CIRC_CAT_SD sy-vline 
WA_TJD57_STR-FM_CIRC_CAT_SO sy-vline 
WA_TJD57_STR-XCOUNCREL sy-vline 
WA_TJD57_STR-XPOSTEINORTREL sy-vline 
WA_TJD57_STR-XNDM_ABC_ZONEREL sy-vline 
WA_TJD57_STR-XTRAD_ABC_ZONERE sy-vline 
WA_TJD57_STR-XBEZPERREL sy-vline 
WA_TJD57_STR-XWEEKDAYREL sy-vline 
WA_TJD57_STR-XWERBEAKTREL sy-vline 
WA_TJD57_STR-XREGIOREL sy-vline      INTO ld_text SEPARATED BY SPACE.

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