ABAP Select data from SAP table CCACORRHIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCACORRHIST
*  INTO TABLE @DATA(IT_CCACORRHIST2).
*--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_CCACORRHIST INDEX 1 INTO DATA(WA_CCACORRHIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCACORRHIST>-MANDT = 1.
<CCACORRHIST>-CACORRESPONDENCETYPE = 1.
<CCACORRHIST>-BUSINESSPARTNER = 1.
<CCACORRHIST>-CONTRACTACCOUNT = 1.
<CCACORRHIST>-CACORRESPONDENCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCACORRHIST-CACORRESPONDENCETYPENAME, sy-vline,
  WA_CCACORRHIST-CORRESPONDENCERECIPIENTNAME, sy-vline,
  WA_CCACORRHIST-CONTRACTACCOUNTNAME, sy-vline,
  WA_CCACORRHIST-COMPANYCODE, sy-vline,
  WA_CCACORRHIST-COMPANYCODENAME, sy-vline,
  WA_CCACORRHIST-ORIGLCORRESPONDENCERECIPIENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCACORRHIST 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_CCACORRHIST 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_CCACORRHIST INTO WA_CCACORRHIST.


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

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

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

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

*Conversion exit GJAHR, internal->external for field CORRESPONDENCECREATIONYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CCACORRHIST-CORRESPONDENCECREATIONYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCACORRHIST-CORRESPONDENCECREATIONYEAR.
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_CCACORRHIST_STR, 
MANDT TYPE STRING,
CACORRESPONDENCETYPE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CACORRESPONDENCE TYPE STRING,
CACORRESPONDENCETYPENAME TYPE STRING,
CORRESPONDENCERECIPIENTNAME TYPE STRING,
CONTRACTACCOUNTNAME TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
ORIGLCORRESPONDENCERECIPIENT TYPE STRING,
ORIGLCORRESPNCRECIPIENTNAME TYPE STRING,
HOUSENUMBER TYPE STRING,
HOMETOWN TYPE STRING,
COUNTRY TYPE STRING,
COUNTRYNAME TYPE STRING,
CACONTRACT TYPE STRING,
CACONTRACTSEMANTICOBJECT TYPE STRING,
CURRENCY TYPE STRING,
CAAMOUNTINLOCALCURRENCY TYPE STRING,
TRANSFERPOSTGHASBEENCARRIEDOUT TYPE STRING,
CACORRESPONDENCESTATUS TYPE STRING,
CASUBAPPLICATION TYPE STRING,
CASUBAPPLICATIONTEXT TYPE STRING,
BUSINESSPARTNERUUID TYPE STRING,
ORIGLCORRESPNCRECIPIENTUUID TYPE STRING,
CATECHCORRESPONDENCESTATUS TYPE STRING,
CATECHCORRESPONDENCESTATUSNAME TYPE STRING,
CORRESPONDENCEISSUEDATE TYPE STRING,
CORRESPONDENCEPRINTDATE TYPE STRING,
CACORRESPNCDISPATCHCONTROL TYPE STRING,
CACORRESPNCDISPATCHCONTROLNAME TYPE STRING,
CREATIONDATE TYPE STRING,
CORRESPONDENCEISSUEDBYUSER TYPE STRING,
CORRESPONDENCEISSUEDBYUSERNAME TYPE STRING,
CORRESPONDENCEISSUETIME TYPE STRING,
CREATIONDATETIME TYPE STRING,
CORRESPONDENCEISSUEDATETIME TYPE STRING,
CORRESPONDENCEPRINTDATETIME TYPE STRING,
CORRESPONDENCEPRINTEDBYUSER TYPE STRING,
CORRESPONDENCEPRINTEDBYUSRNAME TYPE STRING,
CAPRINTRUNDATE TYPE STRING,
CAPRINTRUNID TYPE STRING,
APPLICATIONFORM TYPE STRING,
RAWDATAINTERFACEAPPLFORM TYPE STRING,
CORRESPONDENCECREATIONYEAR TYPE STRING,
CACORRESPONDENCERECURRENCE TYPE STRING,
CACORRESPONDENCERECURRENCEPERD TYPE STRING,
CORRESPONDENCEISEMPTY TYPE STRING,
CORRESPONDENCEISTEST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCACORRHIST_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_CCACORRHIST_STR-MANDT sy-vline 
WA_CCACORRHIST_STR-CACORRESPONDENCETYPE sy-vline 
WA_CCACORRHIST_STR-BUSINESSPARTNER sy-vline 
WA_CCACORRHIST_STR-CONTRACTACCOUNT sy-vline 
WA_CCACORRHIST_STR-CACORRESPONDENCE sy-vline 
WA_CCACORRHIST_STR-CACORRESPONDENCETYPENAME sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCERECIPIENTNAME sy-vline 
WA_CCACORRHIST_STR-CONTRACTACCOUNTNAME sy-vline 
WA_CCACORRHIST_STR-COMPANYCODE sy-vline 
WA_CCACORRHIST_STR-COMPANYCODENAME sy-vline 
WA_CCACORRHIST_STR-ORIGLCORRESPONDENCERECIPIENT sy-vline 
WA_CCACORRHIST_STR-ORIGLCORRESPNCRECIPIENTNAME sy-vline 
WA_CCACORRHIST_STR-HOUSENUMBER sy-vline 
WA_CCACORRHIST_STR-HOMETOWN sy-vline 
WA_CCACORRHIST_STR-COUNTRY sy-vline 
WA_CCACORRHIST_STR-COUNTRYNAME sy-vline 
WA_CCACORRHIST_STR-CACONTRACT sy-vline 
WA_CCACORRHIST_STR-CACONTRACTSEMANTICOBJECT sy-vline 
WA_CCACORRHIST_STR-CURRENCY sy-vline 
WA_CCACORRHIST_STR-CAAMOUNTINLOCALCURRENCY sy-vline 
WA_CCACORRHIST_STR-TRANSFERPOSTGHASBEENCARRIEDOUT sy-vline 
WA_CCACORRHIST_STR-CACORRESPONDENCESTATUS sy-vline 
WA_CCACORRHIST_STR-CASUBAPPLICATION sy-vline 
WA_CCACORRHIST_STR-CASUBAPPLICATIONTEXT sy-vline 
WA_CCACORRHIST_STR-BUSINESSPARTNERUUID sy-vline 
WA_CCACORRHIST_STR-ORIGLCORRESPNCRECIPIENTUUID sy-vline 
WA_CCACORRHIST_STR-CATECHCORRESPONDENCESTATUS sy-vline 
WA_CCACORRHIST_STR-CATECHCORRESPONDENCESTATUSNAME sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEISSUEDATE sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEPRINTDATE sy-vline 
WA_CCACORRHIST_STR-CACORRESPNCDISPATCHCONTROL sy-vline 
WA_CCACORRHIST_STR-CACORRESPNCDISPATCHCONTROLNAME sy-vline 
WA_CCACORRHIST_STR-CREATIONDATE sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEISSUEDBYUSER sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEISSUEDBYUSERNAME sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEISSUETIME sy-vline 
WA_CCACORRHIST_STR-CREATIONDATETIME sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEISSUEDATETIME sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEPRINTDATETIME sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEPRINTEDBYUSER sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEPRINTEDBYUSRNAME sy-vline 
WA_CCACORRHIST_STR-CAPRINTRUNDATE sy-vline 
WA_CCACORRHIST_STR-CAPRINTRUNID sy-vline 
WA_CCACORRHIST_STR-APPLICATIONFORM sy-vline 
WA_CCACORRHIST_STR-RAWDATAINTERFACEAPPLFORM sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCECREATIONYEAR sy-vline 
WA_CCACORRHIST_STR-CACORRESPONDENCERECURRENCE sy-vline 
WA_CCACORRHIST_STR-CACORRESPONDENCERECURRENCEPERD sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEISEMPTY sy-vline 
WA_CCACORRHIST_STR-CORRESPONDENCEISTEST sy-vline      INTO ld_text SEPARATED BY SPACE.

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