ABAP Select data from SAP table TTEPDT_DOCUMENT_LIST_DATA1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TTEPDT_DOCUMENT_LIST_DATA1 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 TTEPDT_DOCUMENT_LIST_DATA1. 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 TTEPDT_DOCUMENT_LIST_DATA1 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_TTEPDT_DOCUMENT_LIST_DATA1 TYPE STANDARD TABLE OF TTEPDT_DOCUMENT_LIST_DATA1,
      WA_TTEPDT_DOCUMENT_LIST_DATA1 TYPE TTEPDT_DOCUMENT_LIST_DATA1,
      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: <TTEPDT_DOCUMENT_LIST_DATA1> TYPE TTEPDT_DOCUMENT_LIST_DATA1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TTEPDT_DOCUMENT_LIST_DATA1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TTEPDT_DOCUMENT_LIST_DATA1
  INTO TABLE IT_TTEPDT_DOCUMENT_LIST_DATA1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTEPDT_DOCUMENT_LIST_DATA1
*  INTO TABLE @DATA(IT_TTEPDT_DOCUMENT_LIST_DATA12).
*--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_TTEPDT_DOCUMENT_LIST_DATA1 INDEX 1 INTO DATA(WA_TTEPDT_DOCUMENT_LIST_DATA12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TTEPDT_DOCUMENT_LIST_DATA1 ASSIGNING <TTEPDT_DOCUMENT_LIST_DATA1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTEPDT_DOCUMENT_LIST_DATA1>-TAXPROCEDURE = 1.
<TTEPDT_DOCUMENT_LIST_DATA1>-TAXFROMROLE = 1.
<TTEPDT_DOCUMENT_LIST_DATA1>-TAXTOROLE = 1.
<TTEPDT_DOCUMENT_LIST_DATA1>-FISCALCODE = 1.
<TTEPDT_DOCUMENT_LIST_DATA1>-IVTOLERANCE = 1.

ENDLOOP.

LOOP AT IT_TTEPDT_DOCUMENT_LIST_DATA1 INTO WA_TTEPDT_DOCUMENT_LIST_DATA1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTEPDT_DOCUMENT_LIST_DATA1-DISTRIBUTIONRULE, sy-vline,
  WA_TTEPDT_DOCUMENT_LIST_DATA1-EDI5153, sy-vline,
  WA_TTEPDT_DOCUMENT_LIST_DATA1-TAXINCIDENCE, sy-vline,
  WA_TTEPDT_DOCUMENT_LIST_DATA1-TAXCATEGORY, sy-vline,
  WA_TTEPDT_DOCUMENT_LIST_DATA1-TAXDATETYPE, sy-vline,
  WA_TTEPDT_DOCUMENT_LIST_DATA1-ACCORDINGTODATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTEPDT_DOCUMENT_LIST_DATA1 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_TTEPDT_DOCUMENT_LIST_DATA1 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_TTEPDT_DOCUMENT_LIST_DATA1 INTO WA_TTEPDT_DOCUMENT_LIST_DATA1.


*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_TTEPDT_DOCUMENT_LIST_DATA1_STR, 
TAXPROCEDURE TYPE STRING,
TAXFROMROLE TYPE STRING,
TAXTOROLE TYPE STRING,
FISCALCODE TYPE STRING,
IVTOLERANCE TYPE STRING,
DISTRIBUTIONRULE TYPE STRING,
EDI5153 TYPE STRING,
TAXINCIDENCE TYPE STRING,
TAXCATEGORY TYPE STRING,
TAXDATETYPE TYPE STRING,
ACCORDINGTODATE TYPE STRING,
EXEMPTIONID TYPE STRING,
DEDUCTIONREASON TYPE STRING,
NONDEDUCTIBLE TYPE STRING,
LOWESTJURISDICT TYPE STRING,
SOURCEINDICATOR TYPE STRING,
LEGALTEXTID TYPE STRING,
TAXTYPELABEL TYPE STRING,
TAXRATEIDLABEL TYPE STRING,
LEGALTEXTIDLABEL TYPE STRING,
PRICINGUNIT TYPE STRING,
UNIT TYPE STRING,
STATISTICAL TYPE STRING,
CALCULATIONTYPE TYPE STRING,
NOTTAXABLE TYPE STRING,
EXPORTINDICATOR TYPE STRING,
POSTINGINDICATOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTEPDT_DOCUMENT_LIST_DATA1_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_TTEPDT_DOCUMENT_LIST_DATA1_STR-TAXPROCEDURE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-TAXFROMROLE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-TAXTOROLE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-FISCALCODE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-IVTOLERANCE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-DISTRIBUTIONRULE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-EDI5153 sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-TAXINCIDENCE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-TAXCATEGORY sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-TAXDATETYPE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-ACCORDINGTODATE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-EXEMPTIONID sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-DEDUCTIONREASON sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-NONDEDUCTIBLE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-LOWESTJURISDICT sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-SOURCEINDICATOR sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-LEGALTEXTID sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-TAXTYPELABEL sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-TAXRATEIDLABEL sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-LEGALTEXTIDLABEL sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-PRICINGUNIT sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-UNIT sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-STATISTICAL sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-CALCULATIONTYPE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-NOTTAXABLE sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-EXPORTINDICATOR sy-vline 
WA_TTEPDT_DOCUMENT_LIST_DATA1_STR-POSTINGINDICATOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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