ABAP Select data from SAP table VN2PMDDOCV_LCUST 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 VN2PMDDOCV_LCUST 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 VN2PMDDOCV_LCUST. 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 VN2PMDDOCV_LCUST 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_VN2PMDDOCV_LCUST TYPE STANDARD TABLE OF VN2PMDDOCV_LCUST,
      WA_VN2PMDDOCV_LCUST TYPE VN2PMDDOCV_LCUST,
      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: <VN2PMDDOCV_LCUST> TYPE VN2PMDDOCV_LCUST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VN2PMDDOCV_LCUST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VN2PMDDOCV_LCUST
  INTO TABLE IT_VN2PMDDOCV_LCUST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VN2PMDDOCV_LCUST
*  INTO TABLE @DATA(IT_VN2PMDDOCV_LCUST2).
*--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_VN2PMDDOCV_LCUST INDEX 1 INTO DATA(WA_VN2PMDDOCV_LCUST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VN2PMDDOCV_LCUST ASSIGNING <VN2PMDDOCV_LCUST>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<VN2PMDDOCV_LCUST>-MANDT = 1.
<VN2PMDDOCV_LCUST>-EINRI = 1.
<VN2PMDDOCV_LCUST>-DTID = 1.
<VN2PMDDOCV_LCUST>-DTVERS = 1.
<VN2PMDDOCV_LCUST>-ALIAS1 = 1.
ENDLOOP.

LOOP AT IT_VN2PMDDOCV_LCUST INTO WA_VN2PMDDOCV_LCUST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VN2PMDDOCV_LCUST-SPLIT_VERTICAL, sy-vline,
WA_VN2PMDDOCV_LCUST-REPID, sy-vline,
WA_VN2PMDDOCV_LCUST-LIST_SIZE, sy-vline,
WA_VN2PMDDOCV_LCUST-START_VIEW, sy-vline,
WA_VN2PMDDOCV_LCUST-PMD_ONLY, sy-vline,
WA_VN2PMDDOCV_LCUST-SEL_DOKAR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_VN2PMDDOCV_LCUST 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_VN2PMDDOCV_LCUST 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_VN2PMDDOCV_LCUST INTO WA_VN2PMDDOCV_LCUST. *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 EINRI CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VN2PMDDOCV_LCUST-EINRI IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VN2PMDDOCV_LCUST-EINRI.
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_VN2PMDDOCV_LCUST_STR,
MANDT TYPE STRING,
EINRI TYPE STRING,
DTID TYPE STRING,
DTVERS TYPE STRING,
ALIAS1 TYPE STRING,
SPLIT_VERTICAL TYPE STRING,
REPID TYPE STRING,
LIST_SIZE TYPE STRING,
START_VIEW TYPE STRING,
PMD_ONLY TYPE STRING,
SEL_DOKAR TYPE STRING,
SEL_DTID TYPE STRING,
SEL_DTVERS TYPE STRING,
INGNORE_CASE TYPE STRING,
SEL_VARIANT TYPE STRING,
IGNORE_OWN_DOC TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR. DATA: WA_VN2PMDDOCV_LCUST_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_VN2PMDDOCV_LCUST_STR-MANDT sy-vline
WA_VN2PMDDOCV_LCUST_STR-EINRI sy-vline
WA_VN2PMDDOCV_LCUST_STR-DTID sy-vline
WA_VN2PMDDOCV_LCUST_STR-DTVERS sy-vline
WA_VN2PMDDOCV_LCUST_STR-ALIAS1 sy-vline
WA_VN2PMDDOCV_LCUST_STR-SPLIT_VERTICAL sy-vline
WA_VN2PMDDOCV_LCUST_STR-REPID sy-vline
WA_VN2PMDDOCV_LCUST_STR-LIST_SIZE sy-vline
WA_VN2PMDDOCV_LCUST_STR-START_VIEW sy-vline
WA_VN2PMDDOCV_LCUST_STR-PMD_ONLY sy-vline
WA_VN2PMDDOCV_LCUST_STR-SEL_DOKAR sy-vline
WA_VN2PMDDOCV_LCUST_STR-SEL_DTID sy-vline
WA_VN2PMDDOCV_LCUST_STR-SEL_DTVERS sy-vline
WA_VN2PMDDOCV_LCUST_STR-INGNORE_CASE sy-vline
WA_VN2PMDDOCV_LCUST_STR-SEL_VARIANT sy-vline
WA_VN2PMDDOCV_LCUST_STR-IGNORE_OWN_DOC sy-vline
WA_VN2PMDDOCV_LCUST_STR-KZ sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.