ABAP Select data from SAP table TTESDT_USITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTESDT_USITEM
*  INTO TABLE @DATA(IT_TTESDT_USITEM2).
*--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_TTESDT_USITEM INDEX 1 INTO DATA(WA_TTESDT_USITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTESDT_USITEM>-CLIENT = 1.
<TTESDT_USITEM>-TTEDOCUMENTID = 1.
<TTESDT_USITEM>-ITEMID = 1.
<TTESDT_USITEM>-COMP_CODE = 1.
<TTESDT_USITEM>-DIVISION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTESDT_USITEM-COUNTRY, sy-vline,
  WA_TTESDT_USITEM-DOC_NUMBER, sy-vline,
  WA_TTESDT_USITEM-POS_NO, sy-vline,
  WA_TTESDT_USITEM-ACCNT_NO, sy-vline,
  WA_TTESDT_USITEM-ACCNT_CLS, sy-vline,
  WA_TTESDT_USITEM-TAX_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTESDT_USITEM 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_TTESDT_USITEM 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_TTESDT_USITEM INTO WA_TTESDT_USITEM.


*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_TTESDT_USITEM_STR, 
CLIENT TYPE STRING,
TTEDOCUMENTID TYPE STRING,
ITEMID TYPE STRING,
COMP_CODE TYPE STRING,
DIVISION TYPE STRING,
COUNTRY TYPE STRING,
DOC_NUMBER TYPE STRING,
POS_NO TYPE STRING,
ACCNT_NO TYPE STRING,
ACCNT_CLS TYPE STRING,
TAX_DATE TYPE STRING,
REP_DATE TYPE STRING,
TXJCD_ST TYPE STRING,
TXJCD_SF TYPE STRING,
TXJCD_POA TYPE STRING,
TXJCD_POO TYPE STRING,
TXJCD_IND TYPE STRING,
PTP_IND TYPE STRING,
APAR_IND TYPE STRING,
TXJCD_L1 TYPE STRING,
TXJCD_L2 TYPE STRING,
TXJCD_L3 TYPE STRING,
TXJCD_L4 TYPE STRING,
TAX_TYPE TYPE STRING,
MATNR TYPE STRING,
PROD_CODE TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
CURR_DEC TYPE STRING,
FREIGHT_AM TYPE STRING,
EXEMPT_AMT TYPE STRING,
EXEMPT_IND TYPE STRING,
CREDIT_IND TYPE STRING,
UPDATE_IND TYPE STRING,
OVWRT_IND TYPE STRING,
TAXPCT0 TYPE STRING,
TAXPCT1 TYPE STRING,
TAXPCT2 TYPE STRING,
TAXPCT3 TYPE STRING,
TAXPCT4 TYPE STRING,
TAXPCT5 TYPE STRING,
TAXPCT6 TYPE STRING,
TAXPCT7 TYPE STRING,
TAXPCT8 TYPE STRING,
TAXPCT9 TYPE STRING,
TAXPCOV TYPE STRING,
TAXAMT0 TYPE STRING,
TAXAMT1 TYPE STRING,
TAXAMT2 TYPE STRING,
TAXAMT3 TYPE STRING,
TAXAMT4 TYPE STRING,
TAXAMT5 TYPE STRING,
TAXAMT6 TYPE STRING,
TAXAMT7 TYPE STRING,
TAXAMT8 TYPE STRING,
TAXAMT9 TYPE STRING,
TAXAMOV TYPE STRING,
TAXBAS0 TYPE STRING,
TAXBAS1 TYPE STRING,
TAXBAS2 TYPE STRING,
TAXBAS3 TYPE STRING,
TAXBAS4 TYPE STRING,
TAXBAS5 TYPE STRING,
TAXBAS6 TYPE STRING,
TAXBAS7 TYPE STRING,
TAXBAS8 TYPE STRING,
TAXBAS9 TYPE STRING,
EXMATFLG TYPE STRING,
EXCUSFLG TYPE STRING,
EXAMT0 TYPE STRING,
EXAMT1 TYPE STRING,
EXAMT2 TYPE STRING,
EXAMT3 TYPE STRING,
EXAMT4 TYPE STRING,
EXAMT5 TYPE STRING,
EXAMT6 TYPE STRING,
EXAMT7 TYPE STRING,
EXAMT8 TYPE STRING,
EXAMT9 TYPE STRING,
EXCODE0 TYPE STRING,
EXCODE1 TYPE STRING,
EXCODE2 TYPE STRING,
EXCODE3 TYPE STRING,
EXCODE4 TYPE STRING,
EXCODE5 TYPE STRING,
EXCODE6 TYPE STRING,
EXCODE7 TYPE STRING,
EXCODE8 TYPE STRING,
EXCODE9 TYPE STRING,
EXCERTIF TYPE STRING,
EXREASON TYPE STRING,
USER_DATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTESDT_USITEM_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_TTESDT_USITEM_STR-CLIENT sy-vline 
WA_TTESDT_USITEM_STR-TTEDOCUMENTID sy-vline 
WA_TTESDT_USITEM_STR-ITEMID sy-vline 
WA_TTESDT_USITEM_STR-COMP_CODE sy-vline 
WA_TTESDT_USITEM_STR-DIVISION sy-vline 
WA_TTESDT_USITEM_STR-COUNTRY sy-vline 
WA_TTESDT_USITEM_STR-DOC_NUMBER sy-vline 
WA_TTESDT_USITEM_STR-POS_NO sy-vline 
WA_TTESDT_USITEM_STR-ACCNT_NO sy-vline 
WA_TTESDT_USITEM_STR-ACCNT_CLS sy-vline 
WA_TTESDT_USITEM_STR-TAX_DATE sy-vline 
WA_TTESDT_USITEM_STR-REP_DATE sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_ST sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_SF sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_POA sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_POO sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_IND sy-vline 
WA_TTESDT_USITEM_STR-PTP_IND sy-vline 
WA_TTESDT_USITEM_STR-APAR_IND sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_L1 sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_L2 sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_L3 sy-vline 
WA_TTESDT_USITEM_STR-TXJCD_L4 sy-vline 
WA_TTESDT_USITEM_STR-TAX_TYPE sy-vline 
WA_TTESDT_USITEM_STR-MATNR sy-vline 
WA_TTESDT_USITEM_STR-PROD_CODE sy-vline 
WA_TTESDT_USITEM_STR-QUANTITY sy-vline 
WA_TTESDT_USITEM_STR-UNIT sy-vline 
WA_TTESDT_USITEM_STR-AMOUNT sy-vline 
WA_TTESDT_USITEM_STR-CURRENCY sy-vline 
WA_TTESDT_USITEM_STR-CURR_DEC sy-vline 
WA_TTESDT_USITEM_STR-FREIGHT_AM sy-vline 
WA_TTESDT_USITEM_STR-EXEMPT_AMT sy-vline 
WA_TTESDT_USITEM_STR-EXEMPT_IND sy-vline 
WA_TTESDT_USITEM_STR-CREDIT_IND sy-vline 
WA_TTESDT_USITEM_STR-UPDATE_IND sy-vline 
WA_TTESDT_USITEM_STR-OVWRT_IND sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT0 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT1 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT2 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT3 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT4 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT5 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT6 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT7 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT8 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCT9 sy-vline 
WA_TTESDT_USITEM_STR-TAXPCOV sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT0 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT1 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT2 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT3 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT4 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT5 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT6 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT7 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT8 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMT9 sy-vline 
WA_TTESDT_USITEM_STR-TAXAMOV sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS0 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS1 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS2 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS3 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS4 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS5 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS6 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS7 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS8 sy-vline 
WA_TTESDT_USITEM_STR-TAXBAS9 sy-vline 
WA_TTESDT_USITEM_STR-EXMATFLG sy-vline 
WA_TTESDT_USITEM_STR-EXCUSFLG sy-vline 
WA_TTESDT_USITEM_STR-EXAMT0 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT1 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT2 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT3 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT4 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT5 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT6 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT7 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT8 sy-vline 
WA_TTESDT_USITEM_STR-EXAMT9 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE0 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE1 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE2 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE3 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE4 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE5 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE6 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE7 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE8 sy-vline 
WA_TTESDT_USITEM_STR-EXCODE9 sy-vline 
WA_TTESDT_USITEM_STR-EXCERTIF sy-vline 
WA_TTESDT_USITEM_STR-EXREASON sy-vline 
WA_TTESDT_USITEM_STR-USER_DATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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