ABAP Select data from SAP table P1027 into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P1027 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 P1027. 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 P1027 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_P1027 TYPE STANDARD TABLE OF P1027,
      WA_P1027 TYPE P1027,
      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: <P1027> TYPE P1027.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P1027.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P1027
  INTO TABLE IT_P1027.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P1027
*  INTO TABLE @DATA(IT_P10272).
*--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_P1027 INDEX 1 INTO DATA(WA_P10272).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P1027 ASSIGNING <P1027>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<P1027>-MANDT = 1.
<P1027>-PLVAR = 1.
<P1027>-OTYPE = 1.
<P1027>-OBJID = 1.
<P1027>-INFTY = 1.
ENDLOOP.

LOOP AT IT_P1027 INTO WA_P1027.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P1027-SUBTY, sy-vline,
WA_P1027-ISTAT, sy-vline,
WA_P1027-PRIOX, sy-vline,
WA_P1027-BEGDA, sy-vline,
WA_P1027-ENDDA, sy-vline,
WA_P1027-VARYF, sy-vline.
ENDLOOP. *Add any further fields from structure WA_P1027 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_P1027 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_P1027 INTO WA_P1027. *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 ISOLA, internal->external for field LANGU CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_P1027-LANGU IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_P1027-LANGU.
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_P1027_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,
CALID TYPE STRING,
LANGU TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR. DATA: WA_P1027_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_P1027_STR-MANDT sy-vline
WA_P1027_STR-PLVAR sy-vline
WA_P1027_STR-OTYPE sy-vline
WA_P1027_STR-OBJID sy-vline
WA_P1027_STR-INFTY sy-vline
WA_P1027_STR-SUBTY sy-vline
WA_P1027_STR-ISTAT sy-vline
WA_P1027_STR-PRIOX sy-vline
WA_P1027_STR-BEGDA sy-vline
WA_P1027_STR-ENDDA sy-vline
WA_P1027_STR-VARYF sy-vline
WA_P1027_STR-SEQNR sy-vline
WA_P1027_STR-AEDTM sy-vline
WA_P1027_STR-UNAME sy-vline
WA_P1027_STR-REASN sy-vline
WA_P1027_STR-HISTO sy-vline
WA_P1027_STR-ITXNR sy-vline
WA_P1027_STR-CALID sy-vline
WA_P1027_STR-LANGU sy-vline
WA_P1027_STR-WAERS sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.