ABAP Select data from SAP table /ACCGO/UIS_S_WC_ALV_DB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/UIS_S_WC_ALV_DB 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 /ACCGO/UIS_S_WC_ALV_DB. 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 /ACCGO/UIS_S_WC_ALV_DB 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_/ACCGO/UIS_S_WC_ALV_DB TYPE STANDARD TABLE OF /ACCGO/UIS_S_WC_ALV_DB,
      WA_/ACCGO/UIS_S_WC_ALV_DB TYPE /ACCGO/UIS_S_WC_ALV_DB,
      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: </ACCGO/UIS_S_WC_ALV_DB> TYPE /ACCGO/UIS_S_WC_ALV_DB.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ACCGO/UIS_S_WC_ALV_DB
  INTO TABLE IT_/ACCGO/UIS_S_WC_ALV_DB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/UIS_S_WC_ALV_DB
*  INTO TABLE @DATA(IT_/ACCGO/UIS_S_WC_ALV_DB2).
*--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_/ACCGO/UIS_S_WC_ALV_DB INDEX 1 INTO DATA(WA_/ACCGO/UIS_S_WC_ALV_DB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ACCGO/UIS_S_WC_ALV_DB ASSIGNING </ACCGO/UIS_S_WC_ALV_DB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/UIS_S_WC_ALV_DB>-UIS_ID = 1.
</ACCGO/UIS_S_WC_ALV_DB>-UIS_TYPE = 1.
</ACCGO/UIS_S_WC_ALV_DB>-GROUP_ID = 1.
</ACCGO/UIS_S_WC_ALV_DB>-GRP_DESC = 1.
</ACCGO/UIS_S_WC_ALV_DB>-EVENT_TYPE = 1.

ENDLOOP.

LOOP AT IT_/ACCGO/UIS_S_WC_ALV_DB INTO WA_/ACCGO/UIS_S_WC_ALV_DB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/UIS_S_WC_ALV_DB-MOT, sy-vline,
  WA_/ACCGO/UIS_S_WC_ALV_DB-EVNT_LOC_TYP, sy-vline,
  WA_/ACCGO/UIS_S_WC_ALV_DB-EVNT_LOC, sy-vline,
  WA_/ACCGO/UIS_S_WC_ALV_DB-REC_LOC_TYP, sy-vline,
  WA_/ACCGO/UIS_S_WC_ALV_DB-REC_LOC, sy-vline,
  WA_/ACCGO/UIS_S_WC_ALV_DB-PLANNED_UNLOAD_LOC_TYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/UIS_S_WC_ALV_DB 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_/ACCGO/UIS_S_WC_ALV_DB 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_/ACCGO/UIS_S_WC_ALV_DB INTO WA_/ACCGO/UIS_S_WC_ALV_DB.


*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 UIS_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/UIS_S_WC_ALV_DB-UIS_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/UIS_S_WC_ALV_DB-UIS_ID.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit TSTLC, internal->external for field CREATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/UIS_S_WC_ALV_DB-CREATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/UIS_S_WC_ALV_DB-CREATED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/UIS_S_WC_ALV_DB-CHANGED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/UIS_S_WC_ALV_DB-CHANGED_ON.
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_/ACCGO/UIS_S_WC_ALV_DB_STR, 
UIS_ID TYPE STRING,
UIS_TYPE TYPE STRING,
GROUP_ID TYPE STRING,
GRP_DESC TYPE STRING,
EVENT_TYPE TYPE STRING,
MOT TYPE STRING,
EVNT_LOC_TYP TYPE STRING,
EVNT_LOC TYPE STRING,
REC_LOC_TYP TYPE STRING,
REC_LOC TYPE STRING,
PLANNED_UNLOAD_LOC_TYP TYPE STRING,
PLANNED_UNLOAD_LOC TYPE STRING,
ADV_DISCH_LOC_TYPE TYPE STRING,
ADV_DISCH_LOC TYPE STRING,
STAGE_LOC TYPE STRING,
DISPUTE_STATUS TYPE STRING,
DISPUTE_REASON TYPE STRING,
VENDOR TYPE STRING,
CUSTOMER TYPE STRING,
MATERIAL TYPE STRING,
EVNT_STATUS TYPE STRING,
SCALP_REL TYPE STRING,
WT_COUNTER TYPE STRING,
AN_COUNTER TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
UPDKZ TYPE STRING,
UPDKZ TYPE STRING,
UIS_OBJ_KEY TYPE STRING,
UIS_EVNT_KEY TYPE STRING,
CREATED_DT TYPE STRING,
CREATED_TM TYPE STRING,
CHANGED_DT TYPE STRING,
CHANGED_TM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/UIS_S_WC_ALV_DB_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_/ACCGO/UIS_S_WC_ALV_DB_STR-UIS_ID sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-UIS_TYPE sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-GROUP_ID sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-GRP_DESC sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-EVENT_TYPE sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-MOT sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-EVNT_LOC_TYP sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-EVNT_LOC sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-REC_LOC_TYP sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-REC_LOC sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-PLANNED_UNLOAD_LOC_TYP sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-PLANNED_UNLOAD_LOC sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-ADV_DISCH_LOC_TYPE sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-ADV_DISCH_LOC sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-STAGE_LOC sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-DISPUTE_STATUS sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-DISPUTE_REASON sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-VENDOR sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CUSTOMER sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-MATERIAL sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-EVNT_STATUS sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-SCALP_REL sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-WT_COUNTER sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-AN_COUNTER sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CREATED_BY sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CREATED_ON sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CHANGED_BY sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CHANGED_ON sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-UPDKZ sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-UPDKZ sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-UIS_OBJ_KEY sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-UIS_EVNT_KEY sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CREATED_DT sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CREATED_TM sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CHANGED_DT sy-vline 
WA_/ACCGO/UIS_S_WC_ALV_DB_STR-CHANGED_TM sy-vline      INTO ld_text SEPARATED BY SPACE.

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