ABAP Select data from SAP table TISSR_ASSET_R30B into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TISSR_ASSET_R30B 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 TISSR_ASSET_R30B. 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 TISSR_ASSET_R30B 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_TISSR_ASSET_R30B TYPE STANDARD TABLE OF TISSR_ASSET_R30B,
      WA_TISSR_ASSET_R30B TYPE TISSR_ASSET_R30B,
      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: <TISSR_ASSET_R30B> TYPE TISSR_ASSET_R30B.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TISSR_ASSET_R30B.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TISSR_ASSET_R30B
  INTO TABLE IT_TISSR_ASSET_R30B.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TISSR_ASSET_R30B
*  INTO TABLE @DATA(IT_TISSR_ASSET_R30B2).
*--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_TISSR_ASSET_R30B INDEX 1 INTO DATA(WA_TISSR_ASSET_R30B2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TISSR_ASSET_R30B ASSIGNING <TISSR_ASSET_R30B>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TISSR_ASSET_R30B>-MANDT = 1.
<TISSR_ASSET_R30B>-BUKRS = 1.
<TISSR_ASSET_R30B>-COUNTRY_VAR = 1.
<TISSR_ASSET_R30B>-STICHTAG_FONDS = 1.
<TISSR_ASSET_R30B>-ASSET_NR = 1.

ENDLOOP.

LOOP AT IT_TISSR_ASSET_R30B INTO WA_TISSR_ASSET_R30B.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TISSR_ASSET_R30B-PRODUCT_CATEGORY, sy-vline,
  WA_TISSR_ASSET_R30B-PRODUCT_TYPE, sy-vline,
  WA_TISSR_ASSET_R30B-RANTYP, sy-vline,
  WA_TISSR_ASSET_R30B-BONITAET, sy-vline,
  WA_TISSR_ASSET_R30B-ART_PRODUCT, sy-vline,
  WA_TISSR_ASSET_R30B-ABS_CLN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TISSR_ASSET_R30B 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_TISSR_ASSET_R30B 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_TISSR_ASSET_R30B INTO WA_TISSR_ASSET_R30B.


*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 ASSET_NR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TISSR_ASSET_R30B-ASSET_NR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TISSR_ASSET_R30B-ASSET_NR.
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_TISSR_ASSET_R30B_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
COUNTRY_VAR TYPE STRING,
STICHTAG_FONDS TYPE STRING,
ASSET_NR TYPE STRING,
PRODUCT_CATEGORY TYPE STRING,
PRODUCT_TYPE TYPE STRING,
RANTYP TYPE STRING,
BONITAET TYPE STRING,
ART_PRODUCT TYPE STRING,
ABS_CLN TYPE STRING,
R3_1999 TYPE STRING,
R3_2000 TYPE STRING,
R1_2002 TYPE STRING,
FLG_PRIVATE_CAP TYPE STRING,
RATING_COMPANY TYPE STRING,
ISSR_RATING TYPE STRING,
FLG_CAP_GUARANTY TYPE STRING,
FLG_NEG_INTEREST TYPE STRING,
PORTFOLIO TYPE STRING,
FLG_P77A4VAG TYPE STRING,
FLG_HF_BOUND TYPE STRING,
FLG_HF_RETURN TYPE STRING,
FLG_HF_INDICES TYPE STRING,
HF_LOCATION TYPE STRING,
FLG_MAX_YLD TYPE STRING,
FLG_CALLABLE TYPE STRING,
ABS TYPE STRING,
INVG_CAT TYPE STRING,
COM_RISK_TYP TYPE STRING,
ART_ABSCLN TYPE STRING,
FLG_SIDEP_B TYPE STRING,
LOCK_PER TYPE STRING,
LOCK_PER_TYP TYPE STRING,
INDEXGRP TYPE STRING,
FLG_NEG_CLAUSE TYPE STRING,
FLG_NO_ABS TYPE STRING,
FLG_COMRISKBOUND TYPE STRING,
RISK_TYPE TYPE STRING,
FLG_RCV_LIAB TYPE STRING,
FLG_HLD_LIAB TYPE STRING,
GUAR_LIAB TYPE STRING,
INFRA_INV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TISSR_ASSET_R30B_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_TISSR_ASSET_R30B_STR-MANDT sy-vline 
WA_TISSR_ASSET_R30B_STR-BUKRS sy-vline 
WA_TISSR_ASSET_R30B_STR-COUNTRY_VAR sy-vline 
WA_TISSR_ASSET_R30B_STR-STICHTAG_FONDS sy-vline 
WA_TISSR_ASSET_R30B_STR-ASSET_NR sy-vline 
WA_TISSR_ASSET_R30B_STR-PRODUCT_CATEGORY sy-vline 
WA_TISSR_ASSET_R30B_STR-PRODUCT_TYPE sy-vline 
WA_TISSR_ASSET_R30B_STR-RANTYP sy-vline 
WA_TISSR_ASSET_R30B_STR-BONITAET sy-vline 
WA_TISSR_ASSET_R30B_STR-ART_PRODUCT sy-vline 
WA_TISSR_ASSET_R30B_STR-ABS_CLN sy-vline 
WA_TISSR_ASSET_R30B_STR-R3_1999 sy-vline 
WA_TISSR_ASSET_R30B_STR-R3_2000 sy-vline 
WA_TISSR_ASSET_R30B_STR-R1_2002 sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_PRIVATE_CAP sy-vline 
WA_TISSR_ASSET_R30B_STR-RATING_COMPANY sy-vline 
WA_TISSR_ASSET_R30B_STR-ISSR_RATING sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_CAP_GUARANTY sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_NEG_INTEREST sy-vline 
WA_TISSR_ASSET_R30B_STR-PORTFOLIO sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_P77A4VAG sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_HF_BOUND sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_HF_RETURN sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_HF_INDICES sy-vline 
WA_TISSR_ASSET_R30B_STR-HF_LOCATION sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_MAX_YLD sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_CALLABLE sy-vline 
WA_TISSR_ASSET_R30B_STR-ABS sy-vline 
WA_TISSR_ASSET_R30B_STR-INVG_CAT sy-vline 
WA_TISSR_ASSET_R30B_STR-COM_RISK_TYP sy-vline 
WA_TISSR_ASSET_R30B_STR-ART_ABSCLN sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_SIDEP_B sy-vline 
WA_TISSR_ASSET_R30B_STR-LOCK_PER sy-vline 
WA_TISSR_ASSET_R30B_STR-LOCK_PER_TYP sy-vline 
WA_TISSR_ASSET_R30B_STR-INDEXGRP sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_NEG_CLAUSE sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_NO_ABS sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_COMRISKBOUND sy-vline 
WA_TISSR_ASSET_R30B_STR-RISK_TYPE sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_RCV_LIAB sy-vline 
WA_TISSR_ASSET_R30B_STR-FLG_HLD_LIAB sy-vline 
WA_TISSR_ASSET_R30B_STR-GUAR_LIAB sy-vline 
WA_TISSR_ASSET_R30B_STR-INFRA_INV sy-vline      INTO ld_text SEPARATED BY SPACE.

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