ABAP Select data from SAP table VN1MEINDEX 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 VN1MEINDEX 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 VN1MEINDEX. 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 VN1MEINDEX 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_VN1MEINDEX TYPE STANDARD TABLE OF VN1MEINDEX,
      WA_VN1MEINDEX TYPE VN1MEINDEX,
      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: <VN1MEINDEX> TYPE VN1MEINDEX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VN1MEINDEX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VN1MEINDEX
  INTO TABLE IT_VN1MEINDEX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VN1MEINDEX
*  INTO TABLE @DATA(IT_VN1MEINDEX2).
*--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_VN1MEINDEX INDEX 1 INTO DATA(WA_VN1MEINDEX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VN1MEINDEX ASSIGNING <VN1MEINDEX>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<VN1MEINDEX>-MANDT = 1.
<VN1MEINDEX>-SRCRECID = 1.
<VN1MEINDEX>-SPRAS = 1.
<VN1MEINDEX>-CATID = 1.
<VN1MEINDEX>-TABLENAME = 1.
ENDLOOP.

LOOP AT IT_VN1MEINDEX INTO WA_VN1MEINDEX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VN1MEINDEX-FIELDNAME, sy-vline,
WA_VN1MEINDEX-PHONID, sy-vline,
WA_VN1MEINDEX-COUNTER, sy-vline,
WA_VN1MEINDEX-STDNAME, sy-vline,
WA_VN1MEINDEX-STDNUMBER, sy-vline,
WA_VN1MEINDEX-TARGETID, sy-vline.
ENDLOOP. *Add any further fields from structure WA_VN1MEINDEX 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_VN1MEINDEX 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_VN1MEINDEX INTO WA_VN1MEINDEX. *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 ISOLA, internal->external for field SPRAS CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_VN1MEINDEX-SPRAS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VN1MEINDEX-SPRAS.
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_VN1MEINDEX_STR,
MANDT TYPE STRING,
SRCRECID TYPE STRING,
SPRAS TYPE STRING,
CATID TYPE STRING,
TABLENAME TYPE STRING,
FIELDNAME TYPE STRING,
PHONID TYPE STRING,
COUNTER TYPE STRING,
STDNAME TYPE STRING,
STDNUMBER TYPE STRING,
TARGETID TYPE STRING,
OPTIONS TYPE STRING,
STARTDT TYPE STRING,
ENDDT TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR. DATA: WA_VN1MEINDEX_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_VN1MEINDEX_STR-MANDT sy-vline
WA_VN1MEINDEX_STR-SRCRECID sy-vline
WA_VN1MEINDEX_STR-SPRAS sy-vline
WA_VN1MEINDEX_STR-CATID sy-vline
WA_VN1MEINDEX_STR-TABLENAME sy-vline
WA_VN1MEINDEX_STR-FIELDNAME sy-vline
WA_VN1MEINDEX_STR-PHONID sy-vline
WA_VN1MEINDEX_STR-COUNTER sy-vline
WA_VN1MEINDEX_STR-STDNAME sy-vline
WA_VN1MEINDEX_STR-STDNUMBER sy-vline
WA_VN1MEINDEX_STR-TARGETID sy-vline
WA_VN1MEINDEX_STR-OPTIONS sy-vline
WA_VN1MEINDEX_STR-STARTDT sy-vline
WA_VN1MEINDEX_STR-ENDDT sy-vline
WA_VN1MEINDEX_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.