ABAP Select data from SAP table V_NMKAP2 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 V_NMKAP2 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 V_NMKAP2. 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 V_NMKAP2 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_V_NMKAP2 TYPE STANDARD TABLE OF V_NMKAP2,
WA_V_NMKAP2 TYPE V_NMKAP2,
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: <V_NMKAP2> TYPE V_NMKAP2.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_V_NMKAP2.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM V_NMKAP2
INTO TABLE IT_V_NMKAP2.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM V_NMKAP2
* INTO TABLE @DATA(IT_V_NMKAP22).
*--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_V_NMKAP2 INDEX 1 INTO DATA(WA_V_NMKAP22).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_NMKAP2 ASSIGNING <V_NMKAP2>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<V_NMKAP2>-MANDT = 1.
<V_NMKAP2>-KATID = 1.
<V_NMKAP2>-MATNR = 1.
<V_NMKAP2>-WERKS = 1.
<V_NMKAP2>-MAKTX = 1.
ENDLOOP. LOOP AT IT_V_NMKAP2 INTO WA_V_NMKAP2. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_V_NMKAP2-MENGE, sy-vline,
WA_V_NMKAP2-MINMG, sy-vline,
WA_V_NMKAP2-MAXMG, sy-vline,
WA_V_NMKAP2-MEINS, sy-vline,
WA_V_NMKAP2-GEART, sy-vline,
WA_V_NMKAP2-HITKZ, sy-vline.
ENDLOOP. *Add any further fields from structure WA_V_NMKAP2 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_V_NMKAP2 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_V_NMKAP2 INTO WA_V_NMKAP2. *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 KATID CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_V_NMKAP2-KATID IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_V_NMKAP2-KATID.
WRITE:/ 'New Value:', ld_input.
*Conversion exit MATN1, internal->external for field MATNR CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_V_NMKAP2-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_V_NMKAP2-MATNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field MEINS CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_V_NMKAP2-MEINS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_V_NMKAP2-MEINS.
WRITE:/ 'New Value:', ld_input.
*Conversion exit CUNIT, internal->external for field VMEIN CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_V_NMKAP2-VMEIN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_V_NMKAP2-VMEIN.
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_V_NMKAP2_STR,
MANDT TYPE STRING,
KATID TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
MAKTX TYPE STRING,
MENGE TYPE STRING,
MINMG TYPE STRING,
MAXMG TYPE STRING,
MEINS TYPE STRING,
GEART TYPE STRING,
HITKZ TYPE STRING,
MDTXT TYPE STRING,
ABRKZ TYPE STRING,
LAGKZ TYPE STRING,
VMENG TYPE STRING,
VMEIN TYPE STRING,
ABLAD TYPE STRING,END OF T_EKKO_STR. DATA: WA_V_NMKAP2_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_V_NMKAP2_STR-MANDT sy-vline
WA_V_NMKAP2_STR-KATID sy-vline
WA_V_NMKAP2_STR-MATNR sy-vline
WA_V_NMKAP2_STR-WERKS sy-vline
WA_V_NMKAP2_STR-MAKTX sy-vline
WA_V_NMKAP2_STR-MENGE sy-vline
WA_V_NMKAP2_STR-MINMG sy-vline
WA_V_NMKAP2_STR-MAXMG sy-vline
WA_V_NMKAP2_STR-MEINS sy-vline
WA_V_NMKAP2_STR-GEART sy-vline
WA_V_NMKAP2_STR-HITKZ sy-vline
WA_V_NMKAP2_STR-MDTXT sy-vline
WA_V_NMKAP2_STR-ABRKZ sy-vline
WA_V_NMKAP2_STR-LAGKZ sy-vline
WA_V_NMKAP2_STR-VMENG sy-vline
WA_V_NMKAP2_STR-VMEIN sy-vline
WA_V_NMKAP2_STR-ABLAD sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.