ABAP Select data from SAP table ISUWA_ALLOC_SHARE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISUWA_ALLOC_SHARE
*  INTO TABLE @DATA(IT_ISUWA_ALLOC_SHARE2).
*--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_ISUWA_ALLOC_SHARE INDEX 1 INTO DATA(WA_ISUWA_ALLOC_SHARE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISUWA_ALLOC_SHARE>-KUNNR = 1.
<ISUWA_ALLOC_SHARE>-NAME1 = 1.
<ISUWA_ALLOC_SHARE>-PARTTXT = 1.
<ISUWA_ALLOC_SHARE>-ADDRNUMBER = 1.
<ISUWA_ALLOC_SHARE>-CONTSHARE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISUWA_ALLOC_SHARE-INSTALLATION, sy-vline,
  WA_ISUWA_ALLOC_SHARE-CONTRACT, sy-vline,
  WA_ISUWA_ALLOC_SHARE-OPERAND, sy-vline,
  WA_ISUWA_ALLOC_SHARE-OPLFDNR, sy-vline,
  WA_ISUWA_ALLOC_SHARE-BZG_AB, sy-vline,
  WA_ISUWA_ALLOC_SHARE-BZG_BIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISUWA_ALLOC_SHARE 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_ISUWA_ALLOC_SHARE 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_ISUWA_ALLOC_SHARE INTO WA_ISUWA_ALLOC_SHARE.


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

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

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

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

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

*Conversion exit GERNR, internal->external for field BEHAELTER
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_ISUWA_ALLOC_SHARE-BEHAELTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUWA_ALLOC_SHARE-BEHAELTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field BEH_TYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISUWA_ALLOC_SHARE-BEH_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUWA_ALLOC_SHARE-BEH_TYPE.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISUWA_ALLOC_SHARE-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUWA_ALLOC_SHARE-PRODUCT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ISUWA_ALLOC_SHARE-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUWA_ALLOC_SHARE-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field IBASE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISUWA_ALLOC_SHARE-IBASE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUWA_ALLOC_SHARE-IBASE.
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_ISUWA_ALLOC_SHARE_STR, 
KUNNR TYPE STRING,
NAME1 TYPE STRING,
PARTTXT TYPE STRING,
ADDRNUMBER TYPE STRING,
CONTSHARE TYPE STRING,
INSTALLATION TYPE STRING,
CONTRACT TYPE STRING,
OPERAND TYPE STRING,
OPLFDNR TYPE STRING,
BZG_AB TYPE STRING,
BZG_BIS TYPE STRING,
EQUNR_WASTE TYPE STRING,
NO_UNITIES TYPE STRING,
BEHAELTER TYPE STRING,
BEH_TYPE TYPE STRING,
BEHGRP TYPE STRING,
AB TYPE STRING,
BIS TYPE STRING,
SELECTED TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PRODUCT TYPE STRING,
PROPSHARE TYPE STRING,
PROP TYPE STRING,
ADDRTXT TYPE STRING,
TPLNR TYPE STRING,
REV_KZ TYPE STRING,
IBASE TYPE STRING,
BZG_TIMFR TYPE STRING,
BZG_TIMTO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISUWA_ALLOC_SHARE_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_ISUWA_ALLOC_SHARE_STR-KUNNR sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-NAME1 sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-PARTTXT sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-ADDRNUMBER sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-CONTSHARE sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-INSTALLATION sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-CONTRACT sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-OPERAND sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-OPLFDNR sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-BZG_AB sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-BZG_BIS sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-EQUNR_WASTE sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-NO_UNITIES sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-BEHAELTER sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-BEH_TYPE sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-BEHGRP sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-AB sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-BIS sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-SELECTED sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-VBELN sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-POSNR sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-PRODUCT sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-PROPSHARE sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-PROP sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-ADDRTXT sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-TPLNR sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-REV_KZ sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-IBASE sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-BZG_TIMFR sy-vline 
WA_ISUWA_ALLOC_SHARE_STR-BZG_TIMTO sy-vline      INTO ld_text SEPARATED BY SPACE.

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