ABAP Select data from SAP table PIQRULEMASTER_SM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQRULEMASTER_SM
*  INTO TABLE @DATA(IT_PIQRULEMASTER_SM2).
*--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_PIQRULEMASTER_SM INDEX 1 INTO DATA(WA_PIQRULEMASTER_SM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQRULEMASTER_SM>-SM_PLVAR = 1.
<PIQRULEMASTER_SM>-SM_OBJID = 1.
<PIQRULEMASTER_SM>-SM_SHORT = 1.
<PIQRULEMASTER_SM>-SM_STEXT = 1.
<PIQRULEMASTER_SM>-SM_1746_SEVERITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQRULEMASTER_SM-SM_1746_CATEGORY, sy-vline,
  WA_PIQRULEMASTER_SM-SM_1746_MODREPTYPE, sy-vline,
  WA_PIQRULEMASTER_SM-SM_1746_SHOWINCAT, sy-vline,
  WA_PIQRULEMASTER_SM-SM_1744_DISZIPRIMARY, sy-vline,
  WA_PIQRULEMASTER_SM-SM_506_BEGDA, sy-vline,
  WA_PIQRULEMASTER_SM-SM_506_ENDDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQRULEMASTER_SM 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_PIQRULEMASTER_SM 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_PIQRULEMASTER_SM INTO WA_PIQRULEMASTER_SM.


*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 SM_506_CPUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PIQRULEMASTER_SM-SM_506_CPUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQRULEMASTER_SM-SM_506_CPUNIT.
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_PIQRULEMASTER_SM_STR, 
SM_PLVAR TYPE STRING,
SM_OBJID TYPE STRING,
SM_SHORT TYPE STRING,
SM_STEXT TYPE STRING,
SM_1746_SEVERITY TYPE STRING,
SM_1746_CATEGORY TYPE STRING,
SM_1746_MODREPTYPE TYPE STRING,
SM_1746_SHOWINCAT TYPE STRING,
SM_1744_DISZIPRIMARY TYPE STRING,
SM_506_BEGDA TYPE STRING,
SM_506_ENDDA TYPE STRING,
SM_506_PRIOX TYPE STRING,
SM_506_SMSTATUS TYPE STRING,
SM_506_STORREASON TYPE STRING,
SM_506_STORDATE TYPE STRING,
SM_506_CPATTEMP TYPE STRING,
SM_506_CPUNIT TYPE STRING,
SM_506_BOOKDATE TYPE STRING,
SM_506_SMRATING TYPE STRING,
SM_506_CHARGEFREE TYPE STRING,
SM_506_TRANSFERFLAG TYPE STRING,
SM_506_PACKNUMBER TYPE STRING,
SM_506_PERID TYPE STRING,
SM_506_PERYR TYPE STRING,
SM_506_BOOKREASON TYPE STRING,
SM_506_ANNULMENT TYPE STRING,
SM_SE_LOCATION TYPE STRING,
SM_ACTIVE_PERYR TYPE STRING,
SM_ACTIVE_PERID TYPE STRING,
SM_SC_OBJID TYPE STRING,
SM_BOOKID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQRULEMASTER_SM_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_PIQRULEMASTER_SM_STR-SM_PLVAR sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_OBJID sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_SHORT sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_STEXT sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_1746_SEVERITY sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_1746_CATEGORY sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_1746_MODREPTYPE sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_1746_SHOWINCAT sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_1744_DISZIPRIMARY sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_BEGDA sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_ENDDA sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_PRIOX sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_SMSTATUS sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_STORREASON sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_STORDATE sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_CPATTEMP sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_CPUNIT sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_BOOKDATE sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_SMRATING sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_CHARGEFREE sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_TRANSFERFLAG sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_PACKNUMBER sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_PERID sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_PERYR sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_BOOKREASON sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_506_ANNULMENT sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_SE_LOCATION sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_ACTIVE_PERYR sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_ACTIVE_PERID sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_SC_OBJID sy-vline 
WA_PIQRULEMASTER_SM_STR-SM_BOOKID sy-vline      INTO ld_text SEPARATED BY SPACE.

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