ABAP Select data from SAP table ML4H_CDS_VM_DD 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 ML4H_CDS_VM_DD 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 ML4H_CDS_VM_DD. 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 ML4H_CDS_VM_DD 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_ML4H_CDS_VM_DD TYPE STANDARD TABLE OF ML4H_CDS_VM_DD,
WA_ML4H_CDS_VM_DD TYPE ML4H_CDS_VM_DD,
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: <ML4H_CDS_VM_DD> TYPE ML4H_CDS_VM_DD.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_ML4H_CDS_VM_DD.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM ML4H_CDS_VM_DD
INTO TABLE IT_ML4H_CDS_VM_DD.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM ML4H_CDS_VM_DD
* INTO TABLE @DATA(IT_ML4H_CDS_VM_DD2).
*--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_ML4H_CDS_VM_DD INDEX 1 INTO DATA(WA_ML4H_CDS_VM_DD2).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ML4H_CDS_VM_DD ASSIGNING <ML4H_CDS_VM_DD>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<ML4H_CDS_VM_DD>-MANDT = 1.
<ML4H_CDS_VM_DD>-CURTP = 1.
<ML4H_CDS_VM_DD>-RLDNR = 1.
<ML4H_CDS_VM_DD>-KALNR = 1.
<ML4H_CDS_VM_DD>-MATNR = 1.
ENDLOOP. LOOP AT IT_ML4H_CDS_VM_DD INTO WA_ML4H_CDS_VM_DD. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_ML4H_CDS_VM_DD-BWTAR, sy-vline,
WA_ML4H_CDS_VM_DD-VBELN, sy-vline,
WA_ML4H_CDS_VM_DD-POSNR, sy-vline,
WA_ML4H_CDS_VM_DD-PSPNR, sy-vline,
WA_ML4H_CDS_VM_DD-LIFNR, sy-vline,
WA_ML4H_CDS_VM_DD-BWKEY, sy-vline.
ENDLOOP. *Add any further fields from structure WA_ML4H_CDS_VM_DD 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_ML4H_CDS_VM_DD 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_ML4H_CDS_VM_DD INTO WA_ML4H_CDS_VM_DD. *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 RLDNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ML4H_CDS_VM_DD-RLDNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ML4H_CDS_VM_DD-RLDNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit MATN1, internal->external for field MATNR CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT' EXPORTING input = WA_ML4H_CDS_VM_DD-MATNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ML4H_CDS_VM_DD-MATNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field VBELN CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ML4H_CDS_VM_DD-VBELN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ML4H_CDS_VM_DD-VBELN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ABPSP, internal->external for field PSPNR CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT' EXPORTING input = WA_ML4H_CDS_VM_DD-PSPNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ML4H_CDS_VM_DD-PSPNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field LIFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ML4H_CDS_VM_DD-LIFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ML4H_CDS_VM_DD-LIFNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field KOSTL CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ML4H_CDS_VM_DD-KOSTL IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ML4H_CDS_VM_DD-KOSTL.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field PRZNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ML4H_CDS_VM_DD-PRZNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ML4H_CDS_VM_DD-PRZNR.
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_ML4H_CDS_VM_DD_STR,
MANDT TYPE STRING,
CURTP TYPE STRING,
RLDNR TYPE STRING,
KALNR TYPE STRING,
MATNR TYPE STRING,
BWTAR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PSPNR TYPE STRING,
LIFNR TYPE STRING,
BWKEY TYPE STRING,
WERKS TYPE STRING,
MLAST TYPE STRING,
XSETTLE TYPE STRING,
XCLOSE TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
LSTAR TYPE STRING,
PRZNR TYPE STRING,
PRICE_RELEVANT_DIFFS TYPE STRING,
NOT_DISTRIBUTED_DIFFS TYPE STRING,
PRICE_LIMITER_DIFFS TYPE STRING,
REVALUATION_DIFFS TYPE STRING,
CONSUMPTION_UPDATE_DIFFS TYPE STRING,
ENDING_INVENTORY_DIFFS TYPE STRING,
NALLOC TYPE STRING,
WIP_REDUCTION_DIFFS TYPE STRING,
WIP_SETTLED_DIFFS TYPE STRING,
WIP_NOT_SETTLED_DIFFS TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR. DATA: WA_ML4H_CDS_VM_DD_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_ML4H_CDS_VM_DD_STR-MANDT sy-vline
WA_ML4H_CDS_VM_DD_STR-CURTP sy-vline
WA_ML4H_CDS_VM_DD_STR-RLDNR sy-vline
WA_ML4H_CDS_VM_DD_STR-KALNR sy-vline
WA_ML4H_CDS_VM_DD_STR-MATNR sy-vline
WA_ML4H_CDS_VM_DD_STR-BWTAR sy-vline
WA_ML4H_CDS_VM_DD_STR-VBELN sy-vline
WA_ML4H_CDS_VM_DD_STR-POSNR sy-vline
WA_ML4H_CDS_VM_DD_STR-PSPNR sy-vline
WA_ML4H_CDS_VM_DD_STR-LIFNR sy-vline
WA_ML4H_CDS_VM_DD_STR-BWKEY sy-vline
WA_ML4H_CDS_VM_DD_STR-WERKS sy-vline
WA_ML4H_CDS_VM_DD_STR-MLAST sy-vline
WA_ML4H_CDS_VM_DD_STR-XSETTLE sy-vline
WA_ML4H_CDS_VM_DD_STR-XCLOSE sy-vline
WA_ML4H_CDS_VM_DD_STR-KOKRS sy-vline
WA_ML4H_CDS_VM_DD_STR-KOSTL sy-vline
WA_ML4H_CDS_VM_DD_STR-LSTAR sy-vline
WA_ML4H_CDS_VM_DD_STR-PRZNR sy-vline
WA_ML4H_CDS_VM_DD_STR-PRICE_RELEVANT_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-NOT_DISTRIBUTED_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-PRICE_LIMITER_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-REVALUATION_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-CONSUMPTION_UPDATE_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-ENDING_INVENTORY_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-NALLOC sy-vline
WA_ML4H_CDS_VM_DD_STR-WIP_REDUCTION_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-WIP_SETTLED_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-WIP_NOT_SETTLED_DIFFS sy-vline
WA_ML4H_CDS_VM_DD_STR-WAERS sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.
