ABAP Select data from SAP table UPKK3A 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 UPKK3A 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 UPKK3A. 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 UPKK3A 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_UPKK3A TYPE STANDARD TABLE OF UPKK3A,
      WA_UPKK3A TYPE UPKK3A,
      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: <UPKK3A> TYPE UPKK3A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UPKK3A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UPKK3A
  INTO TABLE IT_UPKK3A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPKK3A
*  INTO TABLE @DATA(IT_UPKK3A2).
*--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_UPKK3A INDEX 1 INTO DATA(WA_UPKK3A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UPKK3A ASSIGNING <UPKK3A>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPKK3A>-SATZA = 1.
<UPKK3A>-TERID = 1.
<UPKK3A>-LDATE = 1.
<UPKK3A>-LTIME = 1.
<UPKK3A>-ERDAT = 1.
ENDLOOP.

LOOP AT IT_UPKK3A INTO WA_UPKK3A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPKK3A-ERTIM, sy-vline,
WA_UPKK3A-BUDAT, sy-vline,
WA_UPKK3A-ARBPL, sy-vline,
WA_UPKK3A-WERKS, sy-vline,
WA_UPKK3A-ZAUSW, sy-vline,
WA_UPKK3A-AUFNR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_UPKK3A 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_UPKK3A 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_UPKK3A INTO WA_UPKK3A. *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 AUFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_UPKK3A-AUFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_UPKK3A-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT' EXPORTING input = WA_UPKK3A-VORNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_UPKK3A-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT' EXPORTING input = WA_UPKK3A-UVORN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_UPKK3A-UVORN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ISMNE CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_UPKK3A-ISMNE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_UPKK3A-ISMNE.
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_UPKK3A_STR,
SATZA TYPE STRING,
TERID TYPE STRING,
LDATE TYPE STRING,
LTIME TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
BUDAT TYPE STRING,
ARBPL TYPE STRING,
WERKS TYPE STRING,
ZAUSW TYPE STRING,
AUFNR TYPE STRING,
VORNR TYPE STRING,
UVORN TYPE STRING,
SPLIT TYPE STRING,
KAPAR TYPE STRING,
GRUND TYPE STRING,
ABARB TYPE STRING,
LEKNW TYPE STRING,
AUSOR TYPE STRING,
LTXA1 TYPE STRING,
ISMNW TYPE STRING,
ISMNE TYPE STRING,
LEARR TYPE STRING,END OF T_EKKO_STR. DATA: WA_UPKK3A_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_UPKK3A_STR-SATZA sy-vline
WA_UPKK3A_STR-TERID sy-vline
WA_UPKK3A_STR-LDATE sy-vline
WA_UPKK3A_STR-LTIME sy-vline
WA_UPKK3A_STR-ERDAT sy-vline
WA_UPKK3A_STR-ERTIM sy-vline
WA_UPKK3A_STR-BUDAT sy-vline
WA_UPKK3A_STR-ARBPL sy-vline
WA_UPKK3A_STR-WERKS sy-vline
WA_UPKK3A_STR-ZAUSW sy-vline
WA_UPKK3A_STR-AUFNR sy-vline
WA_UPKK3A_STR-VORNR sy-vline
WA_UPKK3A_STR-UVORN sy-vline
WA_UPKK3A_STR-SPLIT sy-vline
WA_UPKK3A_STR-KAPAR sy-vline
WA_UPKK3A_STR-GRUND sy-vline
WA_UPKK3A_STR-ABARB sy-vline
WA_UPKK3A_STR-LEKNW sy-vline
WA_UPKK3A_STR-AUSOR sy-vline
WA_UPKK3A_STR-LTXA1 sy-vline
WA_UPKK3A_STR-ISMNW sy-vline
WA_UPKK3A_STR-ISMNE sy-vline
WA_UPKK3A_STR-LEARR sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.