ABAP Select data from SAP table LXDCKM_GROUP 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 LXDCKM_GROUP 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 LXDCKM_GROUP. 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 LXDCKM_GROUP 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_LXDCKM_GROUP TYPE STANDARD TABLE OF LXDCKM_GROUP,
      WA_LXDCKM_GROUP TYPE LXDCKM_GROUP,
      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: <LXDCKM_GROUP> TYPE LXDCKM_GROUP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LXDCKM_GROUP
*  INTO TABLE @DATA(IT_LXDCKM_GROUP2).
*--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_LXDCKM_GROUP INDEX 1 INTO DATA(WA_LXDCKM_GROUP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LXDCKM_GROUP ASSIGNING <LXDCKM_GROUP>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<LXDCKM_GROUP>-LGNUM = 1.
<LXDCKM_GROUP>-GRPNR = 1.
<LXDCKM_GROUP>-GRPTY = 1.
<LXDCKM_GROUP>-REFNT = 1.
<LXDCKM_GROUP>-RBTYP = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LXDCKM_GROUP-KZDRU, sy-vline,
WA_LXDCKM_GROUP-DATUM, sy-vline,
WA_LXDCKM_GROUP-KZERL, sy-vline,
WA_LXDCKM_GROUP-KWPRO, sy-vline,
WA_LXDCKM_GROUP-L2SKR, sy-vline,
WA_LXDCKM_GROUP-ANZLP, sy-vline.
ENDLOOP. *Add any further fields from structure WA_LXDCKM_GROUP 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_LXDCKM_GROUP 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_LXDCKM_GROUP INTO WA_LXDCKM_GROUP. *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 TSHME, internal->external for field RLSDT CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT' EXPORTING input = WA_LXDCKM_GROUP-RLSDT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_GROUP-RLSDT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSHME, internal->external for field LRLSD CALL FUNCTION 'CONVERSION_EXIT_TSHME_OUTPUT' EXPORTING input = WA_LXDCKM_GROUP-LRLSD IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_LXDCKM_GROUP-LRLSD.
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_LXDCKM_GROUP_STR,
LGNUM TYPE STRING,
GRPNR TYPE STRING,
GRPTY TYPE STRING,
REFNT TYPE STRING,
RBTYP TYPE STRING,
KZDRU TYPE STRING,
DATUM TYPE STRING,
KZERL TYPE STRING,
KWPRO TYPE STRING,
L2SKR TYPE STRING,
ANZLP TYPE STRING,
RLSDT TYPE STRING,
LRLSD TYPE STRING,END OF T_EKKO_STR. DATA: WA_LXDCKM_GROUP_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_LXDCKM_GROUP_STR-LGNUM sy-vline
WA_LXDCKM_GROUP_STR-GRPNR sy-vline
WA_LXDCKM_GROUP_STR-GRPTY sy-vline
WA_LXDCKM_GROUP_STR-REFNT sy-vline
WA_LXDCKM_GROUP_STR-RBTYP sy-vline
WA_LXDCKM_GROUP_STR-KZDRU sy-vline
WA_LXDCKM_GROUP_STR-DATUM sy-vline
WA_LXDCKM_GROUP_STR-KZERL sy-vline
WA_LXDCKM_GROUP_STR-KWPRO sy-vline
WA_LXDCKM_GROUP_STR-L2SKR sy-vline
WA_LXDCKM_GROUP_STR-ANZLP sy-vline
WA_LXDCKM_GROUP_STR-RLSDT sy-vline
WA_LXDCKM_GROUP_STR-LRLSD sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.