ABAP Select data from SAP table WBASSOCVB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBASSOCVB
*  INTO TABLE @DATA(IT_WBASSOCVB2).
*--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_WBASSOCVB INDEX 1 INTO DATA(WA_WBASSOCVB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBASSOCVB>-MANDT = 1.
<WBASSOCVB>-RUUID = 1.
<WBASSOCVB>-TEW_TYPE = 1.
<WBASSOCVB>-ASSOC_STEP_FROM = 1.
<WBASSOCVB>-RDOC_NR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBASSOCVB-RDOC_YEAR, sy-vline,
  WA_WBASSOCVB-RDOC_BUKRS, sy-vline,
  WA_WBASSOCVB-RPOSNR, sy-vline,
  WA_WBASSOCVB-RPOSNR_SUB, sy-vline,
  WA_WBASSOCVB-ASSOC_STEP_TO, sy-vline,
  WA_WBASSOCVB-ADOC_NR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBASSOCVB 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_WBASSOCVB 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_WBASSOCVB INTO WA_WBASSOCVB.


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

*Conversion exit GJAHR, internal->external for field RDOC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WBASSOCVB-RDOC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBASSOCVB-RDOC_YEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field ADOC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_WBASSOCVB-ADOC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBASSOCVB-ADOC_YEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field ANUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBASSOCVB-ANUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBASSOCVB-ANUMBER.
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_WBASSOCVB_STR, 
MANDT TYPE STRING,
RUUID TYPE STRING,
TEW_TYPE TYPE STRING,
ASSOC_STEP_FROM TYPE STRING,
RDOC_NR TYPE STRING,
RDOC_YEAR TYPE STRING,
RDOC_BUKRS TYPE STRING,
RPOSNR TYPE STRING,
RPOSNR_SUB TYPE STRING,
ASSOC_STEP_TO TYPE STRING,
ADOC_NR TYPE STRING,
ADOC_YEAR TYPE STRING,
ADOC_BUKRS TYPE STRING,
APOSNR TYPE STRING,
APOSNR_SUB TYPE STRING,
REC_BASE TYPE STRING,
BAS_DOCTYPE_REC TYPE STRING,
BAS_DOCNR_REC TYPE STRING,
BAS_ITEM_REC TYPE STRING,
BAS_S_ITEM_REC TYPE STRING,
PORTFOLIO_REC TYPE STRING,
RMATNR TYPE STRING,
BAS_DOCTYPE_ASSO TYPE STRING,
BAS_DOCNR_ASSO TYPE STRING,
BAS_ITEM_ASSO TYPE STRING,
BAS_S_ITEM_ASSO TYPE STRING,
PORTFOLIO_ASSOC TYPE STRING,
AMATNR TYPE STRING,
UNIT_OF_QUAN TYPE STRING,
ASSOC_QUAN_ORIG TYPE STRING,
ASSOC_QUAN TYPE STRING,
LOCKED_QUAN TYPE STRING,
LOCK_FLAG TYPE STRING,
LOCK_REASON TYPE STRING,
COMPLETED TYPE STRING,
DOC_TYPE_FROM TYPE STRING,
DOC_TYPE_TO TYPE STRING,
STATUS TYPE STRING,
CHARG_ASSO TYPE STRING,
CHARG_REC TYPE STRING,
PRED_STEP_FROM TYPE STRING,
PRED_STEP_TO TYPE STRING,
PRED_QUAN_FROM TYPE STRING,
PRED_QUAN_TO TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
IGNORE_ASSO TYPE STRING,
_DATAAGING TYPE STRING,
DUMMY_WBASSOC_INCL_EEW_PS TYPE STRING,
UPDKZ TYPE STRING,
RNUMBER TYPE STRING,
ANUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBASSOCVB_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_WBASSOCVB_STR-MANDT sy-vline 
WA_WBASSOCVB_STR-RUUID sy-vline 
WA_WBASSOCVB_STR-TEW_TYPE sy-vline 
WA_WBASSOCVB_STR-ASSOC_STEP_FROM sy-vline 
WA_WBASSOCVB_STR-RDOC_NR sy-vline 
WA_WBASSOCVB_STR-RDOC_YEAR sy-vline 
WA_WBASSOCVB_STR-RDOC_BUKRS sy-vline 
WA_WBASSOCVB_STR-RPOSNR sy-vline 
WA_WBASSOCVB_STR-RPOSNR_SUB sy-vline 
WA_WBASSOCVB_STR-ASSOC_STEP_TO sy-vline 
WA_WBASSOCVB_STR-ADOC_NR sy-vline 
WA_WBASSOCVB_STR-ADOC_YEAR sy-vline 
WA_WBASSOCVB_STR-ADOC_BUKRS sy-vline 
WA_WBASSOCVB_STR-APOSNR sy-vline 
WA_WBASSOCVB_STR-APOSNR_SUB sy-vline 
WA_WBASSOCVB_STR-REC_BASE sy-vline 
WA_WBASSOCVB_STR-BAS_DOCTYPE_REC sy-vline 
WA_WBASSOCVB_STR-BAS_DOCNR_REC sy-vline 
WA_WBASSOCVB_STR-BAS_ITEM_REC sy-vline 
WA_WBASSOCVB_STR-BAS_S_ITEM_REC sy-vline 
WA_WBASSOCVB_STR-PORTFOLIO_REC sy-vline 
WA_WBASSOCVB_STR-RMATNR sy-vline 
WA_WBASSOCVB_STR-BAS_DOCTYPE_ASSO sy-vline 
WA_WBASSOCVB_STR-BAS_DOCNR_ASSO sy-vline 
WA_WBASSOCVB_STR-BAS_ITEM_ASSO sy-vline 
WA_WBASSOCVB_STR-BAS_S_ITEM_ASSO sy-vline 
WA_WBASSOCVB_STR-PORTFOLIO_ASSOC sy-vline 
WA_WBASSOCVB_STR-AMATNR sy-vline 
WA_WBASSOCVB_STR-UNIT_OF_QUAN sy-vline 
WA_WBASSOCVB_STR-ASSOC_QUAN_ORIG sy-vline 
WA_WBASSOCVB_STR-ASSOC_QUAN sy-vline 
WA_WBASSOCVB_STR-LOCKED_QUAN sy-vline 
WA_WBASSOCVB_STR-LOCK_FLAG sy-vline 
WA_WBASSOCVB_STR-LOCK_REASON sy-vline 
WA_WBASSOCVB_STR-COMPLETED sy-vline 
WA_WBASSOCVB_STR-DOC_TYPE_FROM sy-vline 
WA_WBASSOCVB_STR-DOC_TYPE_TO sy-vline 
WA_WBASSOCVB_STR-STATUS sy-vline 
WA_WBASSOCVB_STR-CHARG_ASSO sy-vline 
WA_WBASSOCVB_STR-CHARG_REC sy-vline 
WA_WBASSOCVB_STR-PRED_STEP_FROM sy-vline 
WA_WBASSOCVB_STR-PRED_STEP_TO sy-vline 
WA_WBASSOCVB_STR-PRED_QUAN_FROM sy-vline 
WA_WBASSOCVB_STR-PRED_QUAN_TO sy-vline 
WA_WBASSOCVB_STR-ERDAT sy-vline 
WA_WBASSOCVB_STR-ERNAM sy-vline 
WA_WBASSOCVB_STR-IGNORE_ASSO sy-vline 
WA_WBASSOCVB_STR-_DATAAGING sy-vline 
WA_WBASSOCVB_STR-DUMMY_WBASSOC_INCL_EEW_PS sy-vline 
WA_WBASSOCVB_STR-UPDKZ sy-vline 
WA_WBASSOCVB_STR-RNUMBER sy-vline 
WA_WBASSOCVB_STR-ANUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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