ABAP Select data from SAP table WCSALV45 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 WCSALV45 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 WCSALV45. 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 WCSALV45 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_WCSALV45 TYPE STANDARD TABLE OF WCSALV45,
      WA_WCSALV45 TYPE WCSALV45,
      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: <WCSALV45> TYPE WCSALV45.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WCSALV45.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WCSALV45
  INTO TABLE IT_WCSALV45.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WCSALV45
*  INTO TABLE @DATA(IT_WCSALV452).
*--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_WCSALV45 INDEX 1 INTO DATA(WA_WCSALV452).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WCSALV45 ASSIGNING <WCSALV45>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<WCSALV45>-AUFNR = 1.
<WCSALV45>-TASKICON4WAP = 1.
<WCSALV45>-WAPNR = 1.
<WCSALV45>-REFTXT4WAP = 1.
<WCSALV45>-REFKEY4WAP = 1.
ENDLOOP.

LOOP AT IT_WCSALV45 INTO WA_WCSALV45.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WCSALV45-TASKICON4WAPI, sy-vline,
WA_WCSALV45-TXT4WAPI, sy-vline,
WA_WCSALV45-WAPINR, sy-vline,
WA_WCSALV45-REFTXT4WAPI, sy-vline,
WA_WCSALV45-REFKEY4WAPI, sy-vline,
WA_WCSALV45-TASKICON4WCD, sy-vline.
ENDLOOP. *Add any further fields from structure WA_WCSALV45 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_WCSALV45 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_WCSALV45 INTO WA_WCSALV45. *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_WCSALV45-AUFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WCSALV45-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WAPNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_WCSALV45-WAPNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WCSALV45-WAPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFKEY4WAP CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_WCSALV45-REFKEY4WAP IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WCSALV45-REFKEY4WAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WAPINR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_WCSALV45-WAPINR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WCSALV45-WAPINR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFKEY4WAPI CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_WCSALV45-REFKEY4WAPI IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WCSALV45-REFKEY4WAPI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WCNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_WCSALV45-WCNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WCSALV45-WCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFKEY4WCD CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_WCSALV45-REFKEY4WCD IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WCSALV45-REFKEY4WCD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROPKEY4WCD CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_WCSALV45-PROPKEY4WCD IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_WCSALV45-PROPKEY4WCD.
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_WCSALV45_STR,
AUFNR TYPE STRING,
TASKICON4WAP TYPE STRING,
WAPNR TYPE STRING,
REFTXT4WAP TYPE STRING,
REFKEY4WAP TYPE STRING,
TASKICON4WAPI TYPE STRING,
TXT4WAPI TYPE STRING,
WAPINR TYPE STRING,
REFTXT4WAPI TYPE STRING,
REFKEY4WAPI TYPE STRING,
TASKICON4WCD TYPE STRING,
WCNR TYPE STRING,
REFKEY4WCD TYPE STRING,
PROPKEY4WCD TYPE STRING,
PBPROPCONF TYPE STRING,END OF T_EKKO_STR. DATA: WA_WCSALV45_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_WCSALV45_STR-AUFNR sy-vline
WA_WCSALV45_STR-TASKICON4WAP sy-vline
WA_WCSALV45_STR-WAPNR sy-vline
WA_WCSALV45_STR-REFTXT4WAP sy-vline
WA_WCSALV45_STR-REFKEY4WAP sy-vline
WA_WCSALV45_STR-TASKICON4WAPI sy-vline
WA_WCSALV45_STR-TXT4WAPI sy-vline
WA_WCSALV45_STR-WAPINR sy-vline
WA_WCSALV45_STR-REFTXT4WAPI sy-vline
WA_WCSALV45_STR-REFKEY4WAPI sy-vline
WA_WCSALV45_STR-TASKICON4WCD sy-vline
WA_WCSALV45_STR-WCNR sy-vline
WA_WCSALV45_STR-REFKEY4WCD sy-vline
WA_WCSALV45_STR-PROPKEY4WCD sy-vline
WA_WCSALV45_STR-PBPROPCONF sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.