ABAP Select data from SAP table MCW_WSTORH 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 MCW_WSTORH 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 MCW_WSTORH. 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 MCW_WSTORH 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_MCW_WSTORH TYPE STANDARD TABLE OF MCW_WSTORH,
      WA_MCW_WSTORH TYPE MCW_WSTORH,
      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: <MCW_WSTORH> TYPE MCW_WSTORH.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCW_WSTORH
*  INTO TABLE @DATA(IT_MCW_WSTORH2).
*--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_MCW_WSTORH INDEX 1 INTO DATA(WA_MCW_WSTORH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MCW_WSTORH ASSIGNING <MCW_WSTORH>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCW_WSTORH>-WERKS = 1.
<MCW_WSTORH>-WRKGR1 = 1.
<MCW_WSTORH>-WRKGR2 = 1.
<MCW_WSTORH>-WRKGR3 = 1.
<MCW_WSTORH>-WRKGR4 = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCW_WSTORH-WRKGR5, sy-vline,
WA_MCW_WSTORH-WRKGR6, sy-vline,
WA_MCW_WSTORH-WRKGR7, sy-vline,
WA_MCW_WSTORH-WRKGR8, sy-vline,
WA_MCW_WSTORH-WRKGR9, sy-vline,
WA_MCW_WSTORH-SUBRC, sy-vline.
ENDLOOP. *Add any further fields from structure WA_MCW_WSTORH 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_MCW_WSTORH 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_MCW_WSTORH INTO WA_MCW_WSTORH. *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.
ENDFORM. *&---------------------------------------------------------------------* *& Form process_as_string_field_values *&---------------------------------------------------------------------* FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO. TYPES: BEGIN OF T_MCW_WSTORH_STR,
WERKS TYPE STRING,
WRKGR1 TYPE STRING,
WRKGR2 TYPE STRING,
WRKGR3 TYPE STRING,
WRKGR4 TYPE STRING,
WRKGR5 TYPE STRING,
WRKGR6 TYPE STRING,
WRKGR7 TYPE STRING,
WRKGR8 TYPE STRING,
WRKGR9 TYPE STRING,
SUBRC TYPE STRING,END OF T_EKKO_STR. DATA: WA_MCW_WSTORH_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_MCW_WSTORH_STR-WERKS sy-vline
WA_MCW_WSTORH_STR-WRKGR1 sy-vline
WA_MCW_WSTORH_STR-WRKGR2 sy-vline
WA_MCW_WSTORH_STR-WRKGR3 sy-vline
WA_MCW_WSTORH_STR-WRKGR4 sy-vline
WA_MCW_WSTORH_STR-WRKGR5 sy-vline
WA_MCW_WSTORH_STR-WRKGR6 sy-vline
WA_MCW_WSTORH_STR-WRKGR7 sy-vline
WA_MCW_WSTORH_STR-WRKGR8 sy-vline
WA_MCW_WSTORH_STR-WRKGR9 sy-vline
WA_MCW_WSTORH_STR-SUBRC sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.