ABAP Select data from SAP table E1P1045 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1P1045 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 E1P1045. 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 E1P1045 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_E1P1045 TYPE STANDARD TABLE OF E1P1045,
      WA_E1P1045 TYPE E1P1045,
      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: <E1P1045> TYPE E1P1045.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1P1045.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1P1045
  INTO TABLE IT_E1P1045.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1P1045
*  INTO TABLE @DATA(IT_E1P10452).
*--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_E1P1045 INDEX 1 INTO DATA(WA_E1P10452).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1P1045 ASSIGNING <E1P1045>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1P1045>-MANDT = 1.
<E1P1045>-PLVAR = 1.
<E1P1045>-OTYPE = 1.
<E1P1045>-OBJID = 1.
<E1P1045>-INFTY = 1.

ENDLOOP.

LOOP AT IT_E1P1045 INTO WA_E1P1045.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1P1045-SUBTY, sy-vline,
  WA_E1P1045-ISTAT, sy-vline,
  WA_E1P1045-PRIOX, sy-vline,
  WA_E1P1045-BEGDA, sy-vline,
  WA_E1P1045-ENDDA, sy-vline,
  WA_E1P1045-VARYF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1P1045 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_E1P1045 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_E1P1045 INTO WA_E1P1045.


*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_E1P1045_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
ADATE TYPE STRING,
WAGE_REL TYPE STRING,
ANONYM TYPE STRING,
CALCULATED TYPE STRING,
TABNR TYPE STRING,
TABSEQNR TYPE STRING,
RANK TYPE STRING,
SLEVL TYPE STRING,
APP_OTYPE TYPE STRING,
APP_OBJID TYPE STRING,
APP_STEXT TYPE STRING,
EVALUAT TYPE STRING,
RATING TYPE STRING,
RTEXT TYPE STRING,
NOT_RATED TYPE STRING,
PARENT TYPE STRING,
CHILD TYPE STRING,
BROTHER TYPE STRING,
RATING_OPTION TYPE STRING,
RATING_NO_INPUT TYPE STRING,
ABEGDA TYPE STRING,
AENDDA TYPE STRING,
ANONYMOUS TYPE STRING,
APPRAISER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1P1045_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_E1P1045_STR-MANDT sy-vline 
WA_E1P1045_STR-PLVAR sy-vline 
WA_E1P1045_STR-OTYPE sy-vline 
WA_E1P1045_STR-OBJID sy-vline 
WA_E1P1045_STR-INFTY sy-vline 
WA_E1P1045_STR-SUBTY sy-vline 
WA_E1P1045_STR-ISTAT sy-vline 
WA_E1P1045_STR-PRIOX sy-vline 
WA_E1P1045_STR-BEGDA sy-vline 
WA_E1P1045_STR-ENDDA sy-vline 
WA_E1P1045_STR-VARYF sy-vline 
WA_E1P1045_STR-SEQNR sy-vline 
WA_E1P1045_STR-AEDTM sy-vline 
WA_E1P1045_STR-UNAME sy-vline 
WA_E1P1045_STR-REASN sy-vline 
WA_E1P1045_STR-HISTO sy-vline 
WA_E1P1045_STR-ITXNR sy-vline 
WA_E1P1045_STR-ADATE sy-vline 
WA_E1P1045_STR-WAGE_REL sy-vline 
WA_E1P1045_STR-ANONYM sy-vline 
WA_E1P1045_STR-CALCULATED sy-vline 
WA_E1P1045_STR-TABNR sy-vline 
WA_E1P1045_STR-TABSEQNR sy-vline 
WA_E1P1045_STR-RANK sy-vline 
WA_E1P1045_STR-SLEVL sy-vline 
WA_E1P1045_STR-APP_OTYPE sy-vline 
WA_E1P1045_STR-APP_OBJID sy-vline 
WA_E1P1045_STR-APP_STEXT sy-vline 
WA_E1P1045_STR-EVALUAT sy-vline 
WA_E1P1045_STR-RATING sy-vline 
WA_E1P1045_STR-RTEXT sy-vline 
WA_E1P1045_STR-NOT_RATED sy-vline 
WA_E1P1045_STR-PARENT sy-vline 
WA_E1P1045_STR-CHILD sy-vline 
WA_E1P1045_STR-BROTHER sy-vline 
WA_E1P1045_STR-RATING_OPTION sy-vline 
WA_E1P1045_STR-RATING_NO_INPUT sy-vline 
WA_E1P1045_STR-ABEGDA sy-vline 
WA_E1P1045_STR-AENDDA sy-vline 
WA_E1P1045_STR-ANONYMOUS sy-vline 
WA_E1P1045_STR-APPRAISER sy-vline      INTO ld_text SEPARATED BY SPACE.

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