ABAP Select data from SAP table KPEP_WL_OS 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 KPEP_WL_OS 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 KPEP_WL_OS. 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 KPEP_WL_OS 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_KPEP_WL_OS TYPE STANDARD TABLE OF KPEP_WL_OS,
      WA_KPEP_WL_OS TYPE KPEP_WL_OS,
      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: <KPEP_WL_OS> TYPE KPEP_WL_OS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KPEP_WL_OS
*  INTO TABLE @DATA(IT_KPEP_WL_OS2).
*--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_KPEP_WL_OS INDEX 1 INTO DATA(WA_KPEP_WL_OS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KPEP_WL_OS ASSIGNING <KPEP_WL_OS>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<KPEP_WL_OS>-MANDT = 1.
<KPEP_WL_OS>-WORKLIST = 1.
<KPEP_WL_OS>-OBJECT = 1.
<KPEP_WL_OS>-STEPBL = 1.
<KPEP_WL_OS>-STAT001 = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KPEP_WL_OS-STAT002, sy-vline,
WA_KPEP_WL_OS-STAT003, sy-vline,
WA_KPEP_WL_OS-STAT004, sy-vline,
WA_KPEP_WL_OS-STAT005, sy-vline,
WA_KPEP_WL_OS-STAT006, sy-vline,
WA_KPEP_WL_OS-STAT007, sy-vline.
ENDLOOP. *Add any further fields from structure WA_KPEP_WL_OS 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_KPEP_WL_OS 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_KPEP_WL_OS INTO WA_KPEP_WL_OS. *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 KWOST, internal->external for field STAT001 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT001 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT001.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT002 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT002 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT002.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT003 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT003 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT003.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT004 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT004 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT004.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT005 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT005 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT005.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT006 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT006 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT006.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT007 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT007 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT007.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT008 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT008 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT008.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT009 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT009 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT009.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KWOST, internal->external for field STAT010 CALL FUNCTION 'CONVERSION_EXIT_KWOST_OUTPUT' EXPORTING input = WA_KPEP_WL_OS-STAT010 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KPEP_WL_OS-STAT010.
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_KPEP_WL_OS_STR,
MANDT TYPE STRING,
WORKLIST TYPE STRING,
OBJECT TYPE STRING,
STEPBL TYPE STRING,
STAT001 TYPE STRING,
STAT002 TYPE STRING,
STAT003 TYPE STRING,
STAT004 TYPE STRING,
STAT005 TYPE STRING,
STAT006 TYPE STRING,
STAT007 TYPE STRING,
STAT008 TYPE STRING,
STAT009 TYPE STRING,
STAT010 TYPE STRING,END OF T_EKKO_STR. DATA: WA_KPEP_WL_OS_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_KPEP_WL_OS_STR-MANDT sy-vline
WA_KPEP_WL_OS_STR-WORKLIST sy-vline
WA_KPEP_WL_OS_STR-OBJECT sy-vline
WA_KPEP_WL_OS_STR-STEPBL sy-vline
WA_KPEP_WL_OS_STR-STAT001 sy-vline
WA_KPEP_WL_OS_STR-STAT002 sy-vline
WA_KPEP_WL_OS_STR-STAT003 sy-vline
WA_KPEP_WL_OS_STR-STAT004 sy-vline
WA_KPEP_WL_OS_STR-STAT005 sy-vline
WA_KPEP_WL_OS_STR-STAT006 sy-vline
WA_KPEP_WL_OS_STR-STAT007 sy-vline
WA_KPEP_WL_OS_STR-STAT008 sy-vline
WA_KPEP_WL_OS_STR-STAT009 sy-vline
WA_KPEP_WL_OS_STR-STAT010 sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.