ABAP Select data from SAP table /PLMB/S_DIR_SEA_CRIT_BASIC_ESH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PLMB/S_DIR_SEA_CRIT_BASIC_ESH 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 /PLMB/S_DIR_SEA_CRIT_BASIC_ESH. 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 /PLMB/S_DIR_SEA_CRIT_BASIC_ESH 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_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH TYPE STANDARD TABLE OF /PLMB/S_DIR_SEA_CRIT_BASIC_ESH,
      WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH TYPE /PLMB/S_DIR_SEA_CRIT_BASIC_ESH,
      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: </PLMB/S_DIR_SEA_CRIT_BASIC_ESH> TYPE /PLMB/S_DIR_SEA_CRIT_BASIC_ESH.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PLMB/S_DIR_SEA_CRIT_BASIC_ESH
  INTO TABLE IT_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PLMB/S_DIR_SEA_CRIT_BASIC_ESH
*  INTO TABLE @DATA(IT_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH2).
*--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_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH INDEX 1 INTO DATA(WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH ASSIGNING </PLMB/S_DIR_SEA_CRIT_BASIC_ESH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PLMB/S_DIR_SEA_CRIT_BASIC_ESH>-DOKNR = 1.
</PLMB/S_DIR_SEA_CRIT_BASIC_ESH>-DOKAR = 1.
</PLMB/S_DIR_SEA_CRIT_BASIC_ESH>-DOKVR = 1.
</PLMB/S_DIR_SEA_CRIT_BASIC_ESH>-DOKTL = 1.
</PLMB/S_DIR_SEA_CRIT_BASIC_ESH>-DKTXT = 1.

ENDLOOP.

LOOP AT IT_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH INTO WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-DWNAM, sy-vline,
  WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-LABOR, sy-vline,
  WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-STABK1, sy-vline,
  WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-STABK2, sy-vline,
  WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-AENNR, sy-vline,
  WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-CADKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH 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_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH 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_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH INTO WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH.


*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 DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-DOKNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field STLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-STLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH-STLAL.
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_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR, 
DOKNR TYPE STRING,
DOKAR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
DKTXT TYPE STRING,
DWNAM TYPE STRING,
LABOR TYPE STRING,
STABK1 TYPE STRING,
STABK2 TYPE STRING,
AENNR TYPE STRING,
CADKZ TYPE STRING,
BEGRU TYPE STRING,
LOEDK TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_BY TYPE STRING,
STLAL TYPE STRING,
WERKS TYPE STRING,
STLAN TYPE STRING,
MATNR_EXT TYPE STRING,
FILE_NAME TYPE STRING,
STORAGE_CAT TYPE STRING,
APPLICATION TYPE STRING,
FILEP1 TYPE STRING,
DESCRIPTION TYPE STRING,
DKSTL TYPE STRING,
ACC_ID_EXT TYPE STRING,
T_FIELD_SELOPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_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_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-DOKNR sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-DOKAR sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-DOKVR sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-DOKTL sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-DKTXT sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-DWNAM sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-LABOR sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-STABK1 sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-STABK2 sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-AENNR sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-CADKZ sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-BEGRU sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-LOEDK sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-CREATED_BY sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-CHANGED_BY sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-STLAL sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-WERKS sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-STLAN sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-MATNR_EXT sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-FILE_NAME sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-STORAGE_CAT sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-APPLICATION sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-FILEP1 sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-DESCRIPTION sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-DKSTL sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-ACC_ID_EXT sy-vline 
WA_/PLMB/S_DIR_SEA_CRIT_BASIC_ESH_STR-T_FIELD_SELOPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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