ABAP Select data from SAP table TDS_SW_SELCRIT_E1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_SW_SELCRIT_E1 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 TDS_SW_SELCRIT_E1. 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 TDS_SW_SELCRIT_E1 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_TDS_SW_SELCRIT_E1 TYPE STANDARD TABLE OF TDS_SW_SELCRIT_E1,
      WA_TDS_SW_SELCRIT_E1 TYPE TDS_SW_SELCRIT_E1,
      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: <TDS_SW_SELCRIT_E1> TYPE TDS_SW_SELCRIT_E1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TDS_SW_SELCRIT_E1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TDS_SW_SELCRIT_E1
  INTO TABLE IT_TDS_SW_SELCRIT_E1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_SW_SELCRIT_E1
*  INTO TABLE @DATA(IT_TDS_SW_SELCRIT_E12).
*--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_TDS_SW_SELCRIT_E1 INDEX 1 INTO DATA(WA_TDS_SW_SELCRIT_E12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TDS_SW_SELCRIT_E1 ASSIGNING <TDS_SW_SELCRIT_E1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_SW_SELCRIT_E1>-IT_RG_VBELN = 1.
<TDS_SW_SELCRIT_E1>-IT_RG_AUART = 1.
<TDS_SW_SELCRIT_E1>-IT_RG_KUNAG = 1.
<TDS_SW_SELCRIT_E1>-IT_RG_BSTKD = 1.
<TDS_SW_SELCRIT_E1>-IT_RG_BSARK = 1.

ENDLOOP.

LOOP AT IT_TDS_SW_SELCRIT_E1 INTO WA_TDS_SW_SELCRIT_E1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_SW_SELCRIT_E1-IT_RG_MATNR, sy-vline,
  WA_TDS_SW_SELCRIT_E1-IT_RG_EAN11, sy-vline,
  WA_TDS_SW_SELCRIT_E1-IT_RG_ERDAT, sy-vline,
  WA_TDS_SW_SELCRIT_E1-IT_RG_AUDAT, sy-vline,
  WA_TDS_SW_SELCRIT_E1-IT_RG_ERNAM, sy-vline,
  WA_TDS_SW_SELCRIT_E1-IV_ZPAVW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_SW_SELCRIT_E1 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_TDS_SW_SELCRIT_E1 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_TDS_SW_SELCRIT_E1 INTO WA_TDS_SW_SELCRIT_E1.


*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 PARVW, internal->external for field IV_ZPAVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_TDS_SW_SELCRIT_E1-IV_ZPAVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_SW_SELCRIT_E1-IV_ZPAVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field IV_PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_TDS_SW_SELCRIT_E1-IV_PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_SW_SELCRIT_E1-IV_PARVW.
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_TDS_SW_SELCRIT_E1_STR, 
IT_RG_VBELN TYPE STRING,
IT_RG_AUART TYPE STRING,
IT_RG_KUNAG TYPE STRING,
IT_RG_BSTKD TYPE STRING,
IT_RG_BSARK TYPE STRING,
IT_RG_MATNR TYPE STRING,
IT_RG_EAN11 TYPE STRING,
IT_RG_ERDAT TYPE STRING,
IT_RG_AUDAT TYPE STRING,
IT_RG_ERNAM TYPE STRING,
IV_ZPAVW TYPE STRING,
IT_RG_PERNR TYPE STRING,
IV_PARVW TYPE STRING,
IT_RG_KUNNR TYPE STRING,
IT_RG_VKORG TYPE STRING,
IT_RG_VTWEG TYPE STRING,
IT_RG_SPART TYPE STRING,
IT_RG_VKBUR TYPE STRING,
IT_RG_VKGRP TYPE STRING,
IV_DATAB TYPE STRING,
IV_DATBI TYPE STRING,
IT_RG_DATAB TYPE STRING,
IT_RG_DATBI TYPE STRING,
IT_RG_VDATU TYPE STRING,
IV_STSMA TYPE STRING,
IV_STSMA_ITEM TYPE STRING,
IT_RG_ESTAT TYPE STRING,
IT_RG_ESTAT_ITEM TYPE STRING,
IT_RG_LPRIO TYPE STRING,
IT_RG_WERKS TYPE STRING,
IT_RG_LGORT TYPE STRING,
IT_RG_VSTEL TYPE STRING,
IV_DLVBLOCKED TYPE STRING,
IV_BILLBLOCKED TYPE STRING,
IV_CREDBLOCKED TYPE STRING,
IV_OPEN TYPE STRING,
IV_INCOMPLETE TYPE STRING,
IV_REJECTED TYPE STRING,
IV_INSUFFICIENTLY_CONFIRMED TYPE STRING,
IV_CHECK_AUTH_AUART TYPE STRING,
IV_CHECK_AUTH_ORGDATA TYPE STRING,
IT_RG_SPART_H TYPE STRING,
IT_RG_SPART_I TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_SW_SELCRIT_E1_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_TDS_SW_SELCRIT_E1_STR-IT_RG_VBELN sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_AUART sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_KUNAG sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_BSTKD sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_BSARK sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_MATNR sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_EAN11 sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_ERDAT sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_AUDAT sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_ERNAM sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_ZPAVW sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_PERNR sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_PARVW sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_KUNNR sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_VKORG sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_VTWEG sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_SPART sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_VKBUR sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_VKGRP sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_DATAB sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_DATBI sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_DATAB sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_DATBI sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_VDATU sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_STSMA sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_STSMA_ITEM sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_ESTAT sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_ESTAT_ITEM sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_LPRIO sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_WERKS sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_LGORT sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_VSTEL sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_DLVBLOCKED sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_BILLBLOCKED sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_CREDBLOCKED sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_OPEN sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_INCOMPLETE sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_REJECTED sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_INSUFFICIENTLY_CONFIRMED sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_CHECK_AUTH_AUART sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IV_CHECK_AUTH_ORGDATA sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_SPART_H sy-vline 
WA_TDS_SW_SELCRIT_E1_STR-IT_RG_SPART_I sy-vline      INTO ld_text SEPARATED BY SPACE.

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