ABAP Select data from SAP table INVHEAD 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 INVHEAD 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 INVHEAD. 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 INVHEAD 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_INVHEAD TYPE STANDARD TABLE OF INVHEAD, WA_INVHEAD TYPE INVHEAD, 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: <INVHEAD> TYPE INVHEAD. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_INVHEAD. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM INVHEAD INTO TABLE IT_INVHEAD. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM INVHEAD * INTO TABLE @DATA(IT_INVHEAD2). *--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_INVHEAD INDEX 1 INTO DATA(WA_INVHEAD2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_INVHEAD ASSIGNING <INVHEAD>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<INVHEAD>-WERKS = 1.
<INVHEAD>-LGORT = 1.
<INVHEAD>-IBLNR = 1.
<INVHEAD>-GJAHR = 1.
<INVHEAD>-SOBKZ = 1.
ENDLOOP. LOOP AT IT_INVHEAD INTO WA_INVHEAD. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_INVHEAD-GIDAT, sy-vline,
WA_INVHEAD-XBLNI, sy-vline,
WA_INVHEAD-DNAME, sy-vline,
WA_INVHEAD-DDATE, sy-vline,
WA_INVHEAD-DTIME, sy-vline,
WA_INVHEAD-INVNU, sy-vline.
ENDLOOP. *Add any further fields from structure WA_INVHEAD 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_INVHEAD 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_INVHEAD INTO WA_INVHEAD. *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 IBLNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_INVHEAD-IBLNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_INVHEAD-IBLNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit GJAHR, internal->external for field GJAHR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_INVHEAD-GJAHR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_INVHEAD-GJAHR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit GJAHR, internal->external for field PERIOD_GJAHR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_INVHEAD-PERIOD_GJAHR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_INVHEAD-PERIOD_GJAHR.
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_INVHEAD_STR,
WERKS TYPE STRING,
LGORT TYPE STRING,
IBLNR TYPE STRING,
GJAHR TYPE STRING,
SOBKZ TYPE STRING,
GIDAT TYPE STRING,
XBLNI TYPE STRING,
DNAME TYPE STRING,
DDATE TYPE STRING,
DTIME TYPE STRING,
INVNU TYPE STRING,
BELFIND TYPE STRING,
SEGMENTNUMMER TYPE STRING,
SEGMENTNAME TYPE STRING,
VPDAT TYPE STRING,
LGORT_GEFUELLT TYPE STRING,
FEHLERHAFT TYPE STRING,
BUKRSWAERS TYPE STRING,
XVKBW TYPE STRING,
POSWS TYPE STRING,
PERIOD_GJAHR TYPE STRING,
PERIOD_MONAT TYPE STRING,
DOCNUM TYPE STRING,
KURST TYPE STRING,
RECOVERY_MODE TYPE STRING,END OF T_EKKO_STR. DATA: WA_INVHEAD_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_INVHEAD_STR-WERKS sy-vline
WA_INVHEAD_STR-LGORT sy-vline
WA_INVHEAD_STR-IBLNR sy-vline
WA_INVHEAD_STR-GJAHR sy-vline
WA_INVHEAD_STR-SOBKZ sy-vline
WA_INVHEAD_STR-GIDAT sy-vline
WA_INVHEAD_STR-XBLNI sy-vline
WA_INVHEAD_STR-DNAME sy-vline
WA_INVHEAD_STR-DDATE sy-vline
WA_INVHEAD_STR-DTIME sy-vline
WA_INVHEAD_STR-INVNU sy-vline
WA_INVHEAD_STR-BELFIND sy-vline
WA_INVHEAD_STR-SEGMENTNUMMER sy-vline
WA_INVHEAD_STR-SEGMENTNAME sy-vline
WA_INVHEAD_STR-VPDAT sy-vline
WA_INVHEAD_STR-LGORT_GEFUELLT sy-vline
WA_INVHEAD_STR-FEHLERHAFT sy-vline
WA_INVHEAD_STR-BUKRSWAERS sy-vline
WA_INVHEAD_STR-XVKBW sy-vline
WA_INVHEAD_STR-POSWS sy-vline
WA_INVHEAD_STR-PERIOD_GJAHR sy-vline
WA_INVHEAD_STR-PERIOD_MONAT sy-vline
WA_INVHEAD_STR-DOCNUM sy-vline
WA_INVHEAD_STR-KURST sy-vline
WA_INVHEAD_STR-RECOVERY_MODE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.