ABAP Select data from SAP table ICAINVDOC_C 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 ICAINVDOC_C 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 ICAINVDOC_C. 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 ICAINVDOC_C 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_ICAINVDOC_C TYPE STANDARD TABLE OF ICAINVDOC_C,
      WA_ICAINVDOC_C TYPE ICAINVDOC_C,
      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: <ICAINVDOC_C> TYPE ICAINVDOC_C.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICAINVDOC_C
*  INTO TABLE @DATA(IT_ICAINVDOC_C2).
*--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_ICAINVDOC_C INDEX 1 INTO DATA(WA_ICAINVDOC_C2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ICAINVDOC_C ASSIGNING <ICAINVDOC_C>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICAINVDOC_C>-MANDT = 1.
<ICAINVDOC_C>-CAINVOICINGDOCUMENT = 1.
<ICAINVDOC_C>-CADOCUMENTNUMBER = 1.
<ICAINVDOC_C>-CABPITEMNUMBER = 1.
<ICAINVDOC_C>-CAINVCGCHARGEANDDISCOUNTKEY = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICAINVDOC_C-CAINVCGISCHARGEORDISCOUNT, sy-vline,
WA_ICAINVDOC_C-CACREDITWORTHINESS, sy-vline,
WA_ICAINVDOC_C-CAITEMPERIODSTARTDATE, sy-vline,
WA_ICAINVDOC_C-CAITEMPERIODENDDATE, sy-vline,
WA_ICAINVDOC_C-TRANSACTIONCURRENCY, sy-vline,
WA_ICAINVDOC_C-CAINVCGCHRGANDDISCBASEAMOUNT, sy-vline.
ENDLOOP. *Add any further fields from structure WA_ICAINVDOC_C 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_ICAINVDOC_C 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_ICAINVDOC_C INTO WA_ICAINVDOC_C. *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 CADOCUMENTNUMBER CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_ICAINVDOC_C-CADOCUMENTNUMBER IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_ICAINVDOC_C-CADOCUMENTNUMBER.
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_ICAINVDOC_C_STR,
MANDT TYPE STRING,
CAINVOICINGDOCUMENT TYPE STRING,
CADOCUMENTNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
CAINVCGCHARGEANDDISCOUNTKEY TYPE STRING,
CAINVCGISCHARGEORDISCOUNT TYPE STRING,
CACREDITWORTHINESS TYPE STRING,
CAITEMPERIODSTARTDATE TYPE STRING,
CAITEMPERIODENDDATE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CAINVCGCHRGANDDISCBASEAMOUNT TYPE STRING,
CAINVCGCHRGANDDISCAMOUNT TYPE STRING,
CAINVCGCHRGANDDISCISEXISTING TYPE STRING,END OF T_EKKO_STR. DATA: WA_ICAINVDOC_C_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_ICAINVDOC_C_STR-MANDT sy-vline
WA_ICAINVDOC_C_STR-CAINVOICINGDOCUMENT sy-vline
WA_ICAINVDOC_C_STR-CADOCUMENTNUMBER sy-vline
WA_ICAINVDOC_C_STR-CABPITEMNUMBER sy-vline
WA_ICAINVDOC_C_STR-CAINVCGCHARGEANDDISCOUNTKEY sy-vline
WA_ICAINVDOC_C_STR-CAINVCGISCHARGEORDISCOUNT sy-vline
WA_ICAINVDOC_C_STR-CACREDITWORTHINESS sy-vline
WA_ICAINVDOC_C_STR-CAITEMPERIODSTARTDATE sy-vline
WA_ICAINVDOC_C_STR-CAITEMPERIODENDDATE sy-vline
WA_ICAINVDOC_C_STR-TRANSACTIONCURRENCY sy-vline
WA_ICAINVDOC_C_STR-CAINVCGCHRGANDDISCBASEAMOUNT sy-vline
WA_ICAINVDOC_C_STR-CAINVCGCHRGANDDISCAMOUNT sy-vline
WA_ICAINVDOC_C_STR-CAINVCGCHRGANDDISCISEXISTING sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.