ABAP Select data from SAP table PREL_SEQ_DYNP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PREL_SEQ_DYNP
*  INTO TABLE @DATA(IT_PREL_SEQ_DYNP2).
*--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_PREL_SEQ_DYNP INDEX 1 INTO DATA(WA_PREL_SEQ_DYNP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PREL_SEQ_DYNP>-MARK = 1.
<PREL_SEQ_DYNP>-PNAME = 1.
<PREL_SEQ_DYNP>-PNTYPE = 1.
<PREL_SEQ_DYNP>-ACTTYPE = 1.
<PREL_SEQ_DYNP>-APPLOBJ_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PREL_SEQ_DYNP-CLINT, sy-vline,
  WA_PREL_SEQ_DYNP-CLASS, sy-vline,
  WA_PREL_SEQ_DYNP-KLART, sy-vline,
  WA_PREL_SEQ_DYNP-PDESC, sy-vline,
  WA_PREL_SEQ_DYNP-PICON, sy-vline,
  WA_PREL_SEQ_DYNP-PNGUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PREL_SEQ_DYNP 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_PREL_SEQ_DYNP 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_PREL_SEQ_DYNP INTO WA_PREL_SEQ_DYNP.


*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 CUNIT, internal->external for field TUNIT_MIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PREL_SEQ_DYNP-TUNIT_MIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PREL_SEQ_DYNP-TUNIT_MIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TUNIT_MAX
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PREL_SEQ_DYNP-TUNIT_MAX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PREL_SEQ_DYNP-TUNIT_MAX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TUNIT_AVG
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PREL_SEQ_DYNP-TUNIT_AVG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PREL_SEQ_DYNP-TUNIT_AVG.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field TUNIT_MIN_ADD
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PREL_SEQ_DYNP-TUNIT_MIN_ADD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PREL_SEQ_DYNP-TUNIT_MIN_ADD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TUNIT_MAX_ADD
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PREL_SEQ_DYNP-TUNIT_MAX_ADD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PREL_SEQ_DYNP-TUNIT_MAX_ADD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TUNIT_AVG_ADD
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PREL_SEQ_DYNP-TUNIT_AVG_ADD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PREL_SEQ_DYNP-TUNIT_AVG_ADD.
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_PREL_SEQ_DYNP_STR, 
MARK TYPE STRING,
PNAME TYPE STRING,
PNTYPE TYPE STRING,
ACTTYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
CLINT TYPE STRING,
CLASS TYPE STRING,
KLART TYPE STRING,
PDESC TYPE STRING,
PICON TYPE STRING,
PNGUID TYPE STRING,
PNTEXT TYPE STRING,
CRTYPE TYPE STRING,
COVER_FLG TYPE STRING,
COUPLE_TYPE TYPE STRING,
MATFLOW TYPE STRING,
TUNIT_MIN TYPE STRING,
TUNIT_MAX TYPE STRING,
TUNIT_AVG TYPE STRING,
TUSE_MIN TYPE STRING,
TUSE_MAX TYPE STRING,
SCHED_BY_SUCC TYPE STRING,
TRTIME_MIN TYPE STRING,
TRTIME_MAX TYPE STRING,
TRTIME_AVG TYPE STRING,
ADD_CONSTR TYPE STRING,
MANDT TYPE STRING,
PRGUID TYPE STRING,
OTYPE1 TYPE STRING,
GUID1 TYPE STRING,
APPLOBJ_TYPE1 TYPE STRING,
OTYPE2 TYPE STRING,
GUID2 TYPE STRING,
APPLOBJ_TYPE2 TYPE STRING,
PRTYPE TYPE STRING,
APPLREL_TYPE TYPE STRING,
HISTFLG TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
TIMSTMP TYPE STRING,
SORT TYPE STRING,
CRTYPE_ADD TYPE STRING,
TUNIT_MIN_ADD TYPE STRING,
TUNIT_MAX_ADD TYPE STRING,
TUNIT_AVG_ADD TYPE STRING,
TUSE_MIN_ADD TYPE STRING,
TUSE_MAX_ADD TYPE STRING,
TRTIME_MIN_ADD TYPE STRING,
TRTIME_MAX_ADD TYPE STRING,
TRTIME_AVG_ADD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PREL_SEQ_DYNP_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_PREL_SEQ_DYNP_STR-MARK sy-vline 
WA_PREL_SEQ_DYNP_STR-PNAME sy-vline 
WA_PREL_SEQ_DYNP_STR-PNTYPE sy-vline 
WA_PREL_SEQ_DYNP_STR-ACTTYPE sy-vline 
WA_PREL_SEQ_DYNP_STR-APPLOBJ_TYPE sy-vline 
WA_PREL_SEQ_DYNP_STR-CLINT sy-vline 
WA_PREL_SEQ_DYNP_STR-CLASS sy-vline 
WA_PREL_SEQ_DYNP_STR-KLART sy-vline 
WA_PREL_SEQ_DYNP_STR-PDESC sy-vline 
WA_PREL_SEQ_DYNP_STR-PICON sy-vline 
WA_PREL_SEQ_DYNP_STR-PNGUID sy-vline 
WA_PREL_SEQ_DYNP_STR-PNTEXT sy-vline 
WA_PREL_SEQ_DYNP_STR-CRTYPE sy-vline 
WA_PREL_SEQ_DYNP_STR-COVER_FLG sy-vline 
WA_PREL_SEQ_DYNP_STR-COUPLE_TYPE sy-vline 
WA_PREL_SEQ_DYNP_STR-MATFLOW sy-vline 
WA_PREL_SEQ_DYNP_STR-TUNIT_MIN sy-vline 
WA_PREL_SEQ_DYNP_STR-TUNIT_MAX sy-vline 
WA_PREL_SEQ_DYNP_STR-TUNIT_AVG sy-vline 
WA_PREL_SEQ_DYNP_STR-TUSE_MIN sy-vline 
WA_PREL_SEQ_DYNP_STR-TUSE_MAX sy-vline 
WA_PREL_SEQ_DYNP_STR-SCHED_BY_SUCC sy-vline 
WA_PREL_SEQ_DYNP_STR-TRTIME_MIN sy-vline 
WA_PREL_SEQ_DYNP_STR-TRTIME_MAX sy-vline 
WA_PREL_SEQ_DYNP_STR-TRTIME_AVG sy-vline 
WA_PREL_SEQ_DYNP_STR-ADD_CONSTR sy-vline 
WA_PREL_SEQ_DYNP_STR-MANDT sy-vline 
WA_PREL_SEQ_DYNP_STR-PRGUID sy-vline 
WA_PREL_SEQ_DYNP_STR-OTYPE1 sy-vline 
WA_PREL_SEQ_DYNP_STR-GUID1 sy-vline 
WA_PREL_SEQ_DYNP_STR-APPLOBJ_TYPE1 sy-vline 
WA_PREL_SEQ_DYNP_STR-OTYPE2 sy-vline 
WA_PREL_SEQ_DYNP_STR-GUID2 sy-vline 
WA_PREL_SEQ_DYNP_STR-APPLOBJ_TYPE2 sy-vline 
WA_PREL_SEQ_DYNP_STR-PRTYPE sy-vline 
WA_PREL_SEQ_DYNP_STR-APPLREL_TYPE sy-vline 
WA_PREL_SEQ_DYNP_STR-HISTFLG sy-vline 
WA_PREL_SEQ_DYNP_STR-CREADAT sy-vline 
WA_PREL_SEQ_DYNP_STR-CREABY sy-vline 
WA_PREL_SEQ_DYNP_STR-CHNGDAT sy-vline 
WA_PREL_SEQ_DYNP_STR-CHNGBY sy-vline 
WA_PREL_SEQ_DYNP_STR-LOGSYS sy-vline 
WA_PREL_SEQ_DYNP_STR-TIMSTMP sy-vline 
WA_PREL_SEQ_DYNP_STR-SORT sy-vline 
WA_PREL_SEQ_DYNP_STR-CRTYPE_ADD sy-vline 
WA_PREL_SEQ_DYNP_STR-TUNIT_MIN_ADD sy-vline 
WA_PREL_SEQ_DYNP_STR-TUNIT_MAX_ADD sy-vline 
WA_PREL_SEQ_DYNP_STR-TUNIT_AVG_ADD sy-vline 
WA_PREL_SEQ_DYNP_STR-TUSE_MIN_ADD sy-vline 
WA_PREL_SEQ_DYNP_STR-TUSE_MAX_ADD sy-vline 
WA_PREL_SEQ_DYNP_STR-TRTIME_MIN_ADD sy-vline 
WA_PREL_SEQ_DYNP_STR-TRTIME_MAX_ADD sy-vline 
WA_PREL_SEQ_DYNP_STR-TRTIME_AVG_ADD sy-vline      INTO ld_text SEPARATED BY SPACE.

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