ABAP Select data from SAP table QCVMT 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 QCVMT 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 QCVMT. 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 QCVMT 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_QCVMT TYPE STANDARD TABLE OF QCVMT, WA_QCVMT TYPE QCVMT, 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: <QCVMT> TYPE QCVMT. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_QCVMT. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM QCVMT INTO TABLE IT_QCVMT. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM QCVMT * INTO TABLE @DATA(IT_QCVMT2). *--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_QCVMT INDEX 1 INTO DATA(WA_QCVMT2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_QCVMT ASSIGNING <QCVMT>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<QCVMT>-MANDANT = 1.
<QCVMT>-CTYP = 1.
<QCVMT>-VORLNR = 1.
<QCVMT>-VERSION = 1.
<QCVMT>-BLOCKNR = 1.
ENDLOOP. LOOP AT IT_QCVMT INTO WA_QCVMT. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_QCVMT-MERKMALNR, sy-vline,
WA_QCVMT-SPRACHE, sy-vline,
WA_QCVMT-KURZTEXT, sy-vline,
ENDLOOP. *Add any further fields from structure WA_QCVMT 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_QCVMT 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_QCVMT INTO WA_QCVMT. *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 VERSION CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_QCVMT-VERSION IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_QCVMT-VERSION.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ISOLA, internal->external for field SPRACHE CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_QCVMT-SPRACHE IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_QCVMT-SPRACHE.
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_QCVMT_STR,
MANDANT TYPE STRING,
CTYP TYPE STRING,
VORLNR TYPE STRING,
VERSION TYPE STRING,
BLOCKNR TYPE STRING,
MERKMALNR TYPE STRING,
SPRACHE TYPE STRING,
KURZTEXT TYPE STRING,END OF T_EKKO_STR. DATA: WA_QCVMT_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_QCVMT_STR-MANDANT sy-vline
WA_QCVMT_STR-CTYP sy-vline
WA_QCVMT_STR-VORLNR sy-vline
WA_QCVMT_STR-VERSION sy-vline
WA_QCVMT_STR-BLOCKNR sy-vline
WA_QCVMT_STR-MERKMALNR sy-vline
WA_QCVMT_STR-SPRACHE sy-vline
WA_QCVMT_STR-KURZTEXT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.