ABAP Select data from SAP table PCREDACCOUNT4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PCREDACCOUNT4 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 PCREDACCOUNT4. 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 PCREDACCOUNT4 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_PCREDACCOUNT4 TYPE STANDARD TABLE OF PCREDACCOUNT4,
      WA_PCREDACCOUNT4 TYPE PCREDACCOUNT4,
      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: <PCREDACCOUNT4> TYPE PCREDACCOUNT4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PCREDACCOUNT4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PCREDACCOUNT4
  INTO TABLE IT_PCREDACCOUNT4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCREDACCOUNT4
*  INTO TABLE @DATA(IT_PCREDACCOUNT42).
*--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_PCREDACCOUNT4 INDEX 1 INTO DATA(WA_PCREDACCOUNT42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PCREDACCOUNT4 ASSIGNING <PCREDACCOUNT4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCREDACCOUNT4>-MANDT = 1.
<PCREDACCOUNT4>-BUSINESSPARTNER = 1.
<PCREDACCOUNT4>-CREDITSEGMENT = 1.
<PCREDACCOUNT4>-CREDITSEGMENTCURRENCY = 1.
<PCREDACCOUNT4>-CUSTOMERCREDITLIMITAMOUNT = 1.

ENDLOOP.

LOOP AT IT_PCREDACCOUNT4 INTO WA_PCREDACCOUNT4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCREDACCOUNT4-CREDITLIMITCALCULATEDAMOUNT, sy-vline,
  WA_PCREDACCOUNT4-CREDITLIMITREQUESTEDAMOUNT, sy-vline,
  WA_PCREDACCOUNT4-CUSTOMERCREDITEXPOSUREAMOUNT, sy-vline,
  WA_PCREDACCOUNT4-STATICCREDITEXPOSUREAMOUNT, sy-vline,
  WA_PCREDACCOUNT4-DYNAMICCREDITEXPOSUREAMOUNT, sy-vline,
  WA_PCREDACCOUNT4-CREDITACCOUNTISBLOCKED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCREDACCOUNT4 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_PCREDACCOUNT4 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_PCREDACCOUNT4 INTO WA_PCREDACCOUNT4.


*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_PCREDACCOUNT4-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCREDACCOUNT4-BUSINESSPARTNER.
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_PCREDACCOUNT4_STR, 
MANDT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CREDITSEGMENT TYPE STRING,
CREDITSEGMENTCURRENCY TYPE STRING,
CUSTOMERCREDITLIMITAMOUNT TYPE STRING,
CREDITLIMITCALCULATEDAMOUNT TYPE STRING,
CREDITLIMITREQUESTEDAMOUNT TYPE STRING,
CUSTOMERCREDITEXPOSUREAMOUNT TYPE STRING,
STATICCREDITEXPOSUREAMOUNT TYPE STRING,
DYNAMICCREDITEXPOSUREAMOUNT TYPE STRING,
CREDITACCOUNTISBLOCKED TYPE STRING,
CREDITLIMITVALIDITYENDDATE TYPE STRING,
CREDITLIMITLASTCHANGEDATE TYPE STRING,
CREDITCOORDINATOR TYPE STRING,
CREDITACCOUNTRESUBMISSIONDATE TYPE STRING,
BUSINESSPARTNERISCRITICAL TYPE STRING,
CREDITLIMITISZERO TYPE STRING,
CREDITACCOUNTBLOCKREASON TYPE STRING,
CRDTLMTISREQDFRMAUTOMCALC TYPE STRING,
CREDITLIMITREQDVALIDITYENDDATE TYPE STRING,
CREDITLIMITREQUESTDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCREDACCOUNT4_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_PCREDACCOUNT4_STR-MANDT sy-vline 
WA_PCREDACCOUNT4_STR-BUSINESSPARTNER sy-vline 
WA_PCREDACCOUNT4_STR-CREDITSEGMENT sy-vline 
WA_PCREDACCOUNT4_STR-CREDITSEGMENTCURRENCY sy-vline 
WA_PCREDACCOUNT4_STR-CUSTOMERCREDITLIMITAMOUNT sy-vline 
WA_PCREDACCOUNT4_STR-CREDITLIMITCALCULATEDAMOUNT sy-vline 
WA_PCREDACCOUNT4_STR-CREDITLIMITREQUESTEDAMOUNT sy-vline 
WA_PCREDACCOUNT4_STR-CUSTOMERCREDITEXPOSUREAMOUNT sy-vline 
WA_PCREDACCOUNT4_STR-STATICCREDITEXPOSUREAMOUNT sy-vline 
WA_PCREDACCOUNT4_STR-DYNAMICCREDITEXPOSUREAMOUNT sy-vline 
WA_PCREDACCOUNT4_STR-CREDITACCOUNTISBLOCKED sy-vline 
WA_PCREDACCOUNT4_STR-CREDITLIMITVALIDITYENDDATE sy-vline 
WA_PCREDACCOUNT4_STR-CREDITLIMITLASTCHANGEDATE sy-vline 
WA_PCREDACCOUNT4_STR-CREDITCOORDINATOR sy-vline 
WA_PCREDACCOUNT4_STR-CREDITACCOUNTRESUBMISSIONDATE sy-vline 
WA_PCREDACCOUNT4_STR-BUSINESSPARTNERISCRITICAL sy-vline 
WA_PCREDACCOUNT4_STR-CREDITLIMITISZERO sy-vline 
WA_PCREDACCOUNT4_STR-CREDITACCOUNTBLOCKREASON sy-vline 
WA_PCREDACCOUNT4_STR-CRDTLMTISREQDFRMAUTOMCALC sy-vline 
WA_PCREDACCOUNT4_STR-CREDITLIMITREQDVALIDITYENDDATE sy-vline 
WA_PCREDACCOUNT4_STR-CREDITLIMITREQUESTDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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