ABAP Select data from SAP table KRIF 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 KRIF 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 KRIF. 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 KRIF 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_KRIF TYPE STANDARD TABLE OF KRIF,
      WA_KRIF TYPE KRIF,
      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: <KRIF> TYPE KRIF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KRIF
*  INTO TABLE @DATA(IT_KRIF2).
*--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_KRIF INDEX 1 INTO DATA(WA_KRIF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KRIF ASSIGNING <KRIF>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<KRIF>-MANDT = 1.
<KRIF>-CLINT = 1.
<KRIF>-ATINN = 1.
<KRIF>-ADZHL = 1.
<KRIF>-DATUV = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KRIF-KZLOE, sy-vline,
WA_KRIF-AENNR, sy-vline,
WA_KRIF-ANAME, sy-vline,
WA_KRIF-ADATU, sy-vline,
WA_KRIF-VNAME, sy-vline,
WA_KRIF-VDATU, sy-vline.
ENDLOOP. *Add any further fields from structure WA_KRIF 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_KRIF 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_KRIF INTO WA_KRIF. *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 ATINN, internal->external for field ATINN CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT' EXPORTING input = WA_KRIF-ATINN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KRIF-ATINN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AENNR, internal->external for field AENNR CALL FUNCTION 'CONVERSION_EXIT_AENNR_OUTPUT' EXPORTING input = WA_KRIF-AENNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KRIF-AENNR.
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_KRIF_STR,
MANDT TYPE STRING,
CLINT TYPE STRING,
ATINN TYPE STRING,
ADZHL TYPE STRING,
DATUV TYPE STRING,
KZLOE TYPE STRING,
AENNR TYPE STRING,
ANAME TYPE STRING,
ADATU TYPE STRING,
VNAME TYPE STRING,
VDATU TYPE STRING,END OF T_EKKO_STR. DATA: WA_KRIF_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_KRIF_STR-MANDT sy-vline
WA_KRIF_STR-CLINT sy-vline
WA_KRIF_STR-ATINN sy-vline
WA_KRIF_STR-ADZHL sy-vline
WA_KRIF_STR-DATUV sy-vline
WA_KRIF_STR-KZLOE sy-vline
WA_KRIF_STR-AENNR sy-vline
WA_KRIF_STR-ANAME sy-vline
WA_KRIF_STR-ADATU sy-vline
WA_KRIF_STR-VNAME sy-vline
WA_KRIF_STR-VDATU sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.