ABAP Select data from SAP table PIBASEINST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIBASEINST
*  INTO TABLE @DATA(IT_PIBASEINST2).
*--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_PIBASEINST INDEX 1 INTO DATA(WA_PIBASEINST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIBASEINST>-MANDT = 1.
<PIBASEINST>-INSTALLEDBASECOMPONENTRECORDNO = 1.
<PIBASEINST>-VALIDITYSTARTDATE = 1.
<PIBASEINST>-VALIDITYENDDATE = 1.
<PIBASEINST>-AENNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIBASEINST-DELFLAG, sy-vline,
  WA_PIBASEINST-INSTALLEDBASECOMPONENT, sy-vline,
  WA_PIBASEINST-MLANG, sy-vline,
  WA_PIBASEINST-SORTF, sy-vline,
  WA_PIBASEINST-OBJNR, sy-vline,
  WA_PIBASEINST-INSTALLEDBASE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIBASEINST 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_PIBASEINST 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_PIBASEINST INTO WA_PIBASEINST.


*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 AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PIBASEINST-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIBASEINST-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSTALLEDBASECOMPONENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PIBASEINST-INSTALLEDBASECOMPONENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIBASEINST-INSTALLEDBASECOMPONENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field MLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PIBASEINST-MLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIBASEINST-MLANG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSTALLEDBASE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PIBASEINST-INSTALLEDBASE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIBASEINST-INSTALLEDBASE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIBASEINST-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIBASEINST-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MAT_VARIANT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PIBASEINST-MAT_VARIANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIBASEINST-MAT_VARIANT.
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_PIBASEINST_STR, 
MANDT TYPE STRING,
INSTALLEDBASECOMPONENTRECORDNO TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
AENNR TYPE STRING,
DELFLAG TYPE STRING,
INSTALLEDBASECOMPONENT TYPE STRING,
MLANG TYPE STRING,
SORTF TYPE STRING,
OBJNR TYPE STRING,
INSTALLEDBASE TYPE STRING,
AMOUNT TYPE STRING,
UNIT TYPE STRING,
DATUV TYPE STRING,
TECHS TYPE STRING,
IN_OBJNR TYPE STRING,
IN_GUID TYPE STRING,
IBASEINSTANCEOBJECTTYPE TYPE STRING,
VOID TYPE STRING,
CSTATUS TYPE STRING,
CUCOCNT TYPE STRING,
CUCOCNT_INT TYPE STRING,
EXPERT TYPE STRING,
MAT_VARIANT TYPE STRING,
ATAUT TYPE STRING,
KLART TYPE STRING,
CRNAM TYPE STRING,
UPNAM TYPE STRING,
_DATAAGING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIBASEINST_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_PIBASEINST_STR-MANDT sy-vline 
WA_PIBASEINST_STR-INSTALLEDBASECOMPONENTRECORDNO sy-vline 
WA_PIBASEINST_STR-VALIDITYSTARTDATE sy-vline 
WA_PIBASEINST_STR-VALIDITYENDDATE sy-vline 
WA_PIBASEINST_STR-AENNR sy-vline 
WA_PIBASEINST_STR-DELFLAG sy-vline 
WA_PIBASEINST_STR-INSTALLEDBASECOMPONENT sy-vline 
WA_PIBASEINST_STR-MLANG sy-vline 
WA_PIBASEINST_STR-SORTF sy-vline 
WA_PIBASEINST_STR-OBJNR sy-vline 
WA_PIBASEINST_STR-INSTALLEDBASE sy-vline 
WA_PIBASEINST_STR-AMOUNT sy-vline 
WA_PIBASEINST_STR-UNIT sy-vline 
WA_PIBASEINST_STR-DATUV sy-vline 
WA_PIBASEINST_STR-TECHS sy-vline 
WA_PIBASEINST_STR-IN_OBJNR sy-vline 
WA_PIBASEINST_STR-IN_GUID sy-vline 
WA_PIBASEINST_STR-IBASEINSTANCEOBJECTTYPE sy-vline 
WA_PIBASEINST_STR-VOID sy-vline 
WA_PIBASEINST_STR-CSTATUS sy-vline 
WA_PIBASEINST_STR-CUCOCNT sy-vline 
WA_PIBASEINST_STR-CUCOCNT_INT sy-vline 
WA_PIBASEINST_STR-EXPERT sy-vline 
WA_PIBASEINST_STR-MAT_VARIANT sy-vline 
WA_PIBASEINST_STR-ATAUT sy-vline 
WA_PIBASEINST_STR-KLART sy-vline 
WA_PIBASEINST_STR-CRNAM sy-vline 
WA_PIBASEINST_STR-UPNAM sy-vline 
WA_PIBASEINST_STR-_DATAAGING sy-vline      INTO ld_text SEPARATED BY SPACE.

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