ABAP Select data from SAP table DCDDLSACTCTRL into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DCDDLSACTCTRL 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 DCDDLSACTCTRL. 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 DCDDLSACTCTRL 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_DCDDLSACTCTRL TYPE STANDARD TABLE OF DCDDLSACTCTRL,
      WA_DCDDLSACTCTRL TYPE DCDDLSACTCTRL,
      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: <DCDDLSACTCTRL> TYPE DCDDLSACTCTRL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DCDDLSACTCTRL
*  INTO TABLE @DATA(IT_DCDDLSACTCTRL2).
*--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_DCDDLSACTCTRL INDEX 1 INTO DATA(WA_DCDDLSACTCTRL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DCDDLSACTCTRL>-ACTMODE = 1.
<DCDDLSACTCTRL>-GETSTATE = 1.
<DCDDLSACTCTRL>-PUTSTATE = 1.
<DCDDLSACTCTRL>-CHECKMODE = 1.
<DCDDLSACTCTRL>-NTABSTATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DCDDLSACTCTRL-EXCOMMIT, sy-vline,
  WA_DCDDLSACTCTRL-VIEW_CHECKMODE, sy-vline,
  WA_DCDDLSACTCTRL-ENTITY_CHKMODE, sy-vline,
  WA_DCDDLSACTCTRL-EXTEND_CHKMODE, sy-vline,
  WA_DCDDLSACTCTRL-PERSIST_DDLCONT, sy-vline,
  WA_DCDDLSACTCTRL-DDL_PARSER_INACT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DCDDLSACTCTRL 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_DCDDLSACTCTRL 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_DCDDLSACTCTRL INTO WA_DCDDLSACTCTRL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_DCDDLSACTCTRL_STR, 
ACTMODE TYPE STRING,
GETSTATE TYPE STRING,
PUTSTATE TYPE STRING,
CHECKMODE TYPE STRING,
NTABSTATE TYPE STRING,
EXCOMMIT TYPE STRING,
VIEW_CHECKMODE TYPE STRING,
ENTITY_CHKMODE TYPE STRING,
EXTEND_CHKMODE TYPE STRING,
PERSIST_DDLCONT TYPE STRING,
DDL_PARSER_INACT TYPE STRING,
WRITE_DDLDEP TYPE STRING,
CHECK_DDLDEP TYPE STRING,
PARSE_STRICTNESS TYPE STRING,
IGNORE_ASSOCIATIONS TYPE STRING,
DBADAPT TYPE STRING,
GEN_STMT TYPE STRING,
PRELEVEL TYPE STRING,
NODELTA TYPE STRING,
DEPSELECT TYPE STRING,
DEPABORT TYPE STRING,
ACTION_IN TYPE STRING,
DEPENFORCE TYPE STRING,
DEPACT_ON TYPE STRING,
CHGFLAG_IN TYPE STRING,
UUID TYPE STRING,
IGNORED_ERRORS TYPE STRING,
OPTASSOC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DCDDLSACTCTRL_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_DCDDLSACTCTRL_STR-ACTMODE sy-vline 
WA_DCDDLSACTCTRL_STR-GETSTATE sy-vline 
WA_DCDDLSACTCTRL_STR-PUTSTATE sy-vline 
WA_DCDDLSACTCTRL_STR-CHECKMODE sy-vline 
WA_DCDDLSACTCTRL_STR-NTABSTATE sy-vline 
WA_DCDDLSACTCTRL_STR-EXCOMMIT sy-vline 
WA_DCDDLSACTCTRL_STR-VIEW_CHECKMODE sy-vline 
WA_DCDDLSACTCTRL_STR-ENTITY_CHKMODE sy-vline 
WA_DCDDLSACTCTRL_STR-EXTEND_CHKMODE sy-vline 
WA_DCDDLSACTCTRL_STR-PERSIST_DDLCONT sy-vline 
WA_DCDDLSACTCTRL_STR-DDL_PARSER_INACT sy-vline 
WA_DCDDLSACTCTRL_STR-WRITE_DDLDEP sy-vline 
WA_DCDDLSACTCTRL_STR-CHECK_DDLDEP sy-vline 
WA_DCDDLSACTCTRL_STR-PARSE_STRICTNESS sy-vline 
WA_DCDDLSACTCTRL_STR-IGNORE_ASSOCIATIONS sy-vline 
WA_DCDDLSACTCTRL_STR-DBADAPT sy-vline 
WA_DCDDLSACTCTRL_STR-GEN_STMT sy-vline 
WA_DCDDLSACTCTRL_STR-PRELEVEL sy-vline 
WA_DCDDLSACTCTRL_STR-NODELTA sy-vline 
WA_DCDDLSACTCTRL_STR-DEPSELECT sy-vline 
WA_DCDDLSACTCTRL_STR-DEPABORT sy-vline 
WA_DCDDLSACTCTRL_STR-ACTION_IN sy-vline 
WA_DCDDLSACTCTRL_STR-DEPENFORCE sy-vline 
WA_DCDDLSACTCTRL_STR-DEPACT_ON sy-vline 
WA_DCDDLSACTCTRL_STR-CHGFLAG_IN sy-vline 
WA_DCDDLSACTCTRL_STR-UUID sy-vline 
WA_DCDDLSACTCTRL_STR-IGNORED_ERRORS sy-vline 
WA_DCDDLSACTCTRL_STR-OPTASSOC sy-vline      INTO ld_text SEPARATED BY SPACE.

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