ABAP Select data from SAP table PIQUIBB_MODULE_DETAIL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQUIBB_MODULE_DETAIL
*  INTO TABLE @DATA(IT_PIQUIBB_MODULE_DETAIL2).
*--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_PIQUIBB_MODULE_DETAIL INDEX 1 INTO DATA(WA_PIQUIBB_MODULE_DETAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQUIBB_MODULE_DETAIL>-SM_OBJID = 1.
<PIQUIBB_MODULE_DETAIL>-SM_SHORT = 1.
<PIQUIBB_MODULE_DETAIL>-SM_STEXT = 1.
<PIQUIBB_MODULE_DETAIL>-SM_DESCTYP = 1.
<PIQUIBB_MODULE_DETAIL>-SM_DESCR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQUIBB_MODULE_DETAIL-SM_CAP_MIN, sy-vline,
  WA_PIQUIBB_MODULE_DETAIL-SM_CAP_OPT, sy-vline,
  WA_PIQUIBB_MODULE_DETAIL-SM_CAP_MAX, sy-vline,
  WA_PIQUIBB_MODULE_DETAIL-OFFERPATTERNT, sy-vline,
  WA_PIQUIBB_MODULE_DETAIL-SEVERITYT, sy-vline,
  WA_PIQUIBB_MODULE_DETAIL-CATEGORYT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQUIBB_MODULE_DETAIL 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_PIQUIBB_MODULE_DETAIL 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_PIQUIBB_MODULE_DETAIL INTO WA_PIQUIBB_MODULE_DETAIL.


*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 CP_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQUIBB_MODULE_DETAIL-CP_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQUIBB_MODULE_DETAIL-CP_UNIT.
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_PIQUIBB_MODULE_DETAIL_STR, 
SM_OBJID TYPE STRING,
SM_SHORT TYPE STRING,
SM_STEXT TYPE STRING,
SM_DESCTYP TYPE STRING,
SM_DESCR TYPE STRING,
SM_CAP_MIN TYPE STRING,
SM_CAP_OPT TYPE STRING,
SM_CAP_MAX TYPE STRING,
OFFERPATTERNT TYPE STRING,
SEVERITYT TYPE STRING,
CATEGORYT TYPE STRING,
MODREPEATTYPET TYPE STRING,
WAITL_LEVEL TYPE STRING,
WAITL_NUMBER TYPE STRING,
WAITL_DISABLED TYPE STRING,
WAITL_STDPERCT TYPE STRING,
WAITL_STDLEVEL TYPE STRING,
SHOWINCATALOGUE TYPE STRING,
PROGC_VART TYPE STRING,
CMSMCATT TYPE STRING,
CMLEVCATT TYPE STRING,
CMREFTYPT TYPE STRING,
CMSCDDSHEDT TYPE STRING,
SCALEID TYPE STRING,
SCALEIDT TYPE STRING,
SCALEID_PF TYPE STRING,
SCALEID_PFT TYPE STRING,
ELEMENTSCT TYPE STRING,
ELEMENTCGT TYPE STRING,
DISCIPST TYPE STRING,
OFFEREDT TYPE STRING,
CP_TEXT TYPE STRING,
CPMIN TYPE STRING,
CPOPT TYPE STRING,
CPMAX TYPE STRING,
CP_UNIT TYPE STRING,
CP_UNITT TYPE STRING,
REFERENCET TYPE STRING,
PRE_REQUISITET TYPE STRING,
CO_REQUISITET TYPE STRING,
SM_RULE_FLAG TYPE STRING,
MODREG_LEVEL TYPE STRING,
SPCATG_TEXT TYPE STRING,
MULT_SEC_ENABLED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQUIBB_MODULE_DETAIL_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_PIQUIBB_MODULE_DETAIL_STR-SM_OBJID sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SM_SHORT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SM_STEXT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SM_DESCTYP sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SM_DESCR sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SM_CAP_MIN sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SM_CAP_OPT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SM_CAP_MAX sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-OFFERPATTERNT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SEVERITYT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CATEGORYT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-MODREPEATTYPET sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-WAITL_LEVEL sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-WAITL_NUMBER sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-WAITL_DISABLED sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-WAITL_STDPERCT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-WAITL_STDLEVEL sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SHOWINCATALOGUE sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-PROGC_VART sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CMSMCATT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CMLEVCATT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CMREFTYPT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CMSCDDSHEDT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SCALEID sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SCALEIDT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SCALEID_PF sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SCALEID_PFT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-ELEMENTSCT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-ELEMENTCGT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-DISCIPST sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-OFFEREDT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CP_TEXT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CPMIN sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CPOPT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CPMAX sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CP_UNIT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CP_UNITT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-REFERENCET sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-PRE_REQUISITET sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-CO_REQUISITET sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SM_RULE_FLAG sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-MODREG_LEVEL sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-SPCATG_TEXT sy-vline 
WA_PIQUIBB_MODULE_DETAIL_STR-MULT_SEC_ENABLED sy-vline      INTO ld_text SEPARATED BY SPACE.

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