ABAP Select data from SAP table UPR1_HEADER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UPR1_HEADER 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 UPR1_HEADER. 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 UPR1_HEADER 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_UPR1_HEADER TYPE STANDARD TABLE OF UPR1_HEADER,
      WA_UPR1_HEADER TYPE UPR1_HEADER,
      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: <UPR1_HEADER> TYPE UPR1_HEADER.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UPR1_HEADER.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UPR1_HEADER
  INTO TABLE IT_UPR1_HEADER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPR1_HEADER
*  INTO TABLE @DATA(IT_UPR1_HEADER2).
*--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_UPR1_HEADER INDEX 1 INTO DATA(WA_UPR1_HEADER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UPR1_HEADER ASSIGNING <UPR1_HEADER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPR1_HEADER>-DATASOURCE = 1.
<UPR1_HEADER>-DSTXT = 1.
<UPR1_HEADER>-LOGSYS = 1.
<UPR1_HEADER>-PSA = 1.
<UPR1_HEADER>-ISOURCE = 1.

ENDLOOP.

LOOP AT IT_UPR1_HEADER INTO WA_UPR1_HEADER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPR1_HEADER-ISTXT, sy-vline,
  WA_UPR1_HEADER-TARGET, sy-vline,
  WA_UPR1_HEADER-TTYPE, sy-vline,
  WA_UPR1_HEADER-TRAFO, sy-vline,
  WA_UPR1_HEADER-TRTXT, sy-vline,
  WA_UPR1_HEADER-RELEASE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPR1_HEADER 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_UPR1_HEADER 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_UPR1_HEADER INTO WA_UPR1_HEADER.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UPR1_HEADER-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UPR1_HEADER-LOGSYS.
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_UPR1_HEADER_STR, 
DATASOURCE TYPE STRING,
DSTXT TYPE STRING,
LOGSYS TYPE STRING,
PSA TYPE STRING,
ISOURCE TYPE STRING,
ISTXT TYPE STRING,
TARGET TYPE STRING,
TTYPE TYPE STRING,
TRAFO TYPE STRING,
TRTXT TYPE STRING,
RELEASE TYPE STRING,
DATAFLOW TYPE STRING,
INIT_REQ TYPE STRING,
IP_INIT TYPE STRING,
IP_INIT_TXT TYPE STRING,
SINGLE_INIT TYPE STRING,
SELDATE TYPE STRING,
LAST_REQ TYPE STRING,
IP_DELTA TYPE STRING,
IP_DELTA_TXT TYPE STRING,
LAST_DELTA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPR1_HEADER_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_UPR1_HEADER_STR-DATASOURCE sy-vline 
WA_UPR1_HEADER_STR-DSTXT sy-vline 
WA_UPR1_HEADER_STR-LOGSYS sy-vline 
WA_UPR1_HEADER_STR-PSA sy-vline 
WA_UPR1_HEADER_STR-ISOURCE sy-vline 
WA_UPR1_HEADER_STR-ISTXT sy-vline 
WA_UPR1_HEADER_STR-TARGET sy-vline 
WA_UPR1_HEADER_STR-TTYPE sy-vline 
WA_UPR1_HEADER_STR-TRAFO sy-vline 
WA_UPR1_HEADER_STR-TRTXT sy-vline 
WA_UPR1_HEADER_STR-RELEASE sy-vline 
WA_UPR1_HEADER_STR-DATAFLOW sy-vline 
WA_UPR1_HEADER_STR-INIT_REQ sy-vline 
WA_UPR1_HEADER_STR-IP_INIT sy-vline 
WA_UPR1_HEADER_STR-IP_INIT_TXT sy-vline 
WA_UPR1_HEADER_STR-SINGLE_INIT sy-vline 
WA_UPR1_HEADER_STR-SELDATE sy-vline 
WA_UPR1_HEADER_STR-LAST_REQ sy-vline 
WA_UPR1_HEADER_STR-IP_DELTA sy-vline 
WA_UPR1_HEADER_STR-IP_DELTA_TXT sy-vline 
WA_UPR1_HEADER_STR-LAST_DELTA sy-vline      INTO ld_text SEPARATED BY SPACE.

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