ABAP Select data from SAP table /UI2/CACHE into internal table

Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP /UI2/CACHE 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 /UI2/CACHE. 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 /UI2/CACHE 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_/UI2/CACHE TYPE STANDARD TABLE OF /UI2/CACHE,
      WA_/UI2/CACHE TYPE /UI2/CACHE,
      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: </UI2/CACHE> TYPE /UI2/CACHE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/UI2/CACHE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /UI2/CACHE
  INTO TABLE IT_/UI2/CACHE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /UI2/CACHE
*  INTO TABLE @DATA(IT_/UI2/CACHE2).
*--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_/UI2/CACHE INDEX 1 INTO DATA(WA_/UI2/CACHE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/UI2/CACHE ASSIGNING </UI2/CACHE>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
</UI2/CACHE>-MANDT = 1.
</UI2/CACHE>-RELID = 1.
</UI2/CACHE>-USR = 1.
</UI2/CACHE>-URL = 1.
</UI2/CACHE>-GUID = 1.
ENDLOOP.

LOOP AT IT_/UI2/CACHE INTO WA_/UI2/CACHE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/UI2/CACHE-SRTF2, sy-vline,
WA_/UI2/CACHE-ENTITY_SET, sy-vline,
WA_/UI2/CACHE-ENTITY, sy-vline,
WA_/UI2/CACHE-SECONDARY_KEY, sy-vline,
WA_/UI2/CACHE-LANGUAGE, sy-vline,
WA_/UI2/CACHE-DPC, sy-vline.
ENDLOOP. *Add any further fields from structure WA_/UI2/CACHE 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_/UI2/CACHE 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_/UI2/CACHE INTO WA_/UI2/CACHE. *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 ISOLA, internal->external for field LANGUAGE CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_/UI2/CACHE-LANGUAGE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_/UI2/CACHE-LANGUAGE.
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_/UI2/CACHE_STR,
MANDT TYPE STRING,
RELID TYPE STRING,
USR TYPE STRING,
URL TYPE STRING,
GUID TYPE STRING,
SRTF2 TYPE STRING,
ENTITY_SET TYPE STRING,
ENTITY TYPE STRING,
SECONDARY_KEY TYPE STRING,
LANGUAGE TYPE STRING,
DPC TYPE STRING,
NAV_PATH_HASH TYPE STRING,
CR_TIME TYPE STRING,
CB_TOKEN_ID TYPE STRING,
CD_TOKEN TYPE STRING,
CLUSTR TYPE STRING,
CLUSTD TYPE STRING,END OF T_EKKO_STR. DATA: WA_/UI2/CACHE_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_/UI2/CACHE_STR-MANDT sy-vline
WA_/UI2/CACHE_STR-RELID sy-vline
WA_/UI2/CACHE_STR-USR sy-vline
WA_/UI2/CACHE_STR-URL sy-vline
WA_/UI2/CACHE_STR-GUID sy-vline
WA_/UI2/CACHE_STR-SRTF2 sy-vline
WA_/UI2/CACHE_STR-ENTITY_SET sy-vline
WA_/UI2/CACHE_STR-ENTITY sy-vline
WA_/UI2/CACHE_STR-SECONDARY_KEY sy-vline
WA_/UI2/CACHE_STR-LANGUAGE sy-vline
WA_/UI2/CACHE_STR-DPC sy-vline
WA_/UI2/CACHE_STR-NAV_PATH_HASH sy-vline
WA_/UI2/CACHE_STR-CR_TIME sy-vline
WA_/UI2/CACHE_STR-CB_TOKEN_ID sy-vline
WA_/UI2/CACHE_STR-CD_TOKEN sy-vline
WA_/UI2/CACHE_STR-CLUSTR sy-vline
WA_/UI2/CACHE_STR-CLUSTD sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.