ABAP Select data from SAP table CCAINV_TRIG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CCAINV_TRIG 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 CCAINV_TRIG. 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 CCAINV_TRIG 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_CCAINV_TRIG TYPE STANDARD TABLE OF CCAINV_TRIG,
      WA_CCAINV_TRIG TYPE CCAINV_TRIG,
      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: <CCAINV_TRIG> TYPE CCAINV_TRIG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCAINV_TRIG
*  INTO TABLE @DATA(IT_CCAINV_TRIG2).
*--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_CCAINV_TRIG INDEX 1 INTO DATA(WA_CCAINV_TRIG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CCAINV_TRIG ASSIGNING <CCAINV_TRIG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCAINV_TRIG>-MANDT = 1.
<CCAINV_TRIG>-CAINVCGSOURCEDOCUMENTCAT = 1.
<CCAINV_TRIG>-CAINVCGSOURCEDOCUMENTNUMBER = 1.
<CCAINV_TRIG>-CAINVCGSOURCEDOCUMENTSEMOBJ = 1.
<CCAINV_TRIG>-FIRSTNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCAINV_TRIG-LASTNAME, sy-vline,
  WA_CCAINV_TRIG-BUSINESSPARTNER, sy-vline,
  WA_CCAINV_TRIG-CONTRACTACCOUNT, sy-vline,
  WA_CCAINV_TRIG-TRANSACTIONCURRENCY, sy-vline,
  WA_CCAINV_TRIG-CAINVCGSOURCEDOCUMENTAMOUNT, sy-vline,
  WA_CCAINV_TRIG-CAINVCGFIRSTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCAINV_TRIG 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_CCAINV_TRIG 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_CCAINV_TRIG INTO WA_CCAINV_TRIG.


*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 CAINVCGSOURCEDOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINV_TRIG-CAINVCGSOURCEDOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINV_TRIG-CAINVCGSOURCEDOCUMENTNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINV_TRIG-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINV_TRIG-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTRACTACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINV_TRIG-CONTRACTACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINV_TRIG-CONTRACTACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALTVCONTRACTACCTFORCOLLVBILLS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINV_TRIG-ALTVCONTRACTACCTFORCOLLVBILLS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINV_TRIG-ALTVCONTRACTACCTFORCOLLVBILLS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINV_TRIG-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINV_TRIG-CACONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCAINV_TRIG-LOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAINV_TRIG-LOGICALSYSTEM.
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_CCAINV_TRIG_STR, 
MANDT TYPE STRING,
CAINVCGSOURCEDOCUMENTCAT TYPE STRING,
CAINVCGSOURCEDOCUMENTNUMBER TYPE STRING,
CAINVCGSOURCEDOCUMENTSEMOBJ TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CAINVCGSOURCEDOCUMENTAMOUNT TYPE STRING,
CAINVCGFIRSTDATE TYPE STRING,
CAINVCGREQCREATIONDATE TYPE STRING,
ALTVCONTRACTACCTFORCOLLVBILLS TYPE STRING,
BUSINESSPLACE TYPE STRING,
CAAPPLICATIONAREA TYPE STRING,
CABILLGDOCORIGINPROCESS TYPE STRING,
CAINVCGREQENDDATE TYPE STRING,
CAINVCGREQSTARTDATE TYPE STRING,
CACONTRACT TYPE STRING,
CAINVCGCATEGORY TYPE STRING,
CAINVCGCONTROLOFINVOICINGUNIT TYPE STRING,
CAINVCGCORRECTIONCATEGORY TYPE STRING,
CAINVCGBASEDATE TYPE STRING,
CAINVCGMASTERDATATYPE TYPE STRING,
CAINVCGREQCREATIONUSER TYPE STRING,
CAINVCGREQISDOCUMENTSIMULATED TYPE STRING,
CAINVCGREQISLOCKEDFORINVOICING TYPE STRING,
CAINVCGSOURCEDOCUMENTTYPE TYPE STRING,
CAINVCGTARGETPROCESS TYPE STRING,
CAINVCGTECHNICALDOCUMENTTYPE TYPE STRING,
CAPARTNERSETTLEMENTRULE TYPE STRING,
CASUBAPPLICATION TYPE STRING,
COMPANYCODE TYPE STRING,
DIVISION TYPE STRING,
LOGICALSYSTEM TYPE STRING,
CAINVCGSOURCEDOCCATTEXT TYPE STRING,
CAINVCGCATEGORYTEXT TYPE STRING,
CAINVCGSOURCEDOCTYPETEXT TYPE STRING,
CAINVCGTARGETPROCTEXT TYPE STRING,
CAINVCGDOCTECHDOCTYPETEXT TYPE STRING,
CASUBAPPLICATIONTEXT TYPE STRING,
CAINVCGMASTERDATATYPETEXT TYPE STRING,
CABILLGDOCORIGINPROCESSTEXT TYPE STRING,
CAINVCGCORRECTIONCATTEXT TYPE STRING,
CAINVCGCONTROLOFINVCGUNITTXT TYPE STRING,
COMPANYCODENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCAINV_TRIG_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_CCAINV_TRIG_STR-MANDT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGSOURCEDOCUMENTCAT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGSOURCEDOCUMENTNUMBER sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGSOURCEDOCUMENTSEMOBJ sy-vline 
WA_CCAINV_TRIG_STR-FIRSTNAME sy-vline 
WA_CCAINV_TRIG_STR-LASTNAME sy-vline 
WA_CCAINV_TRIG_STR-BUSINESSPARTNER sy-vline 
WA_CCAINV_TRIG_STR-CONTRACTACCOUNT sy-vline 
WA_CCAINV_TRIG_STR-TRANSACTIONCURRENCY sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGSOURCEDOCUMENTAMOUNT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGFIRSTDATE sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGREQCREATIONDATE sy-vline 
WA_CCAINV_TRIG_STR-ALTVCONTRACTACCTFORCOLLVBILLS sy-vline 
WA_CCAINV_TRIG_STR-BUSINESSPLACE sy-vline 
WA_CCAINV_TRIG_STR-CAAPPLICATIONAREA sy-vline 
WA_CCAINV_TRIG_STR-CABILLGDOCORIGINPROCESS sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGREQENDDATE sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGREQSTARTDATE sy-vline 
WA_CCAINV_TRIG_STR-CACONTRACT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGCATEGORY sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGCONTROLOFINVOICINGUNIT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGCORRECTIONCATEGORY sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGBASEDATE sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGMASTERDATATYPE sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGREQCREATIONUSER sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGREQISDOCUMENTSIMULATED sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGREQISLOCKEDFORINVOICING sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGSOURCEDOCUMENTTYPE sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGTARGETPROCESS sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGTECHNICALDOCUMENTTYPE sy-vline 
WA_CCAINV_TRIG_STR-CAPARTNERSETTLEMENTRULE sy-vline 
WA_CCAINV_TRIG_STR-CASUBAPPLICATION sy-vline 
WA_CCAINV_TRIG_STR-COMPANYCODE sy-vline 
WA_CCAINV_TRIG_STR-DIVISION sy-vline 
WA_CCAINV_TRIG_STR-LOGICALSYSTEM sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGSOURCEDOCCATTEXT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGCATEGORYTEXT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGSOURCEDOCTYPETEXT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGTARGETPROCTEXT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGDOCTECHDOCTYPETEXT sy-vline 
WA_CCAINV_TRIG_STR-CASUBAPPLICATIONTEXT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGMASTERDATATYPETEXT sy-vline 
WA_CCAINV_TRIG_STR-CABILLGDOCORIGINPROCESSTEXT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGCORRECTIONCATTEXT sy-vline 
WA_CCAINV_TRIG_STR-CAINVCGCONTROLOFINVCGUNITTXT sy-vline 
WA_CCAINV_TRIG_STR-COMPANYCODENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.