ABAP Select data from SAP table PALLOCINFO into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PALLOCINFO
*  INTO TABLE @DATA(IT_PALLOCINFO2).
*--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_PALLOCINFO INDEX 1 INTO DATA(WA_PALLOCINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PALLOCINFO>-MANDT = 1.
<PALLOCINFO>-ALLOCATIONTYPE = 1.
<PALLOCINFO>-ALLOCATIONPOSTINGTYPE = 1.
<PALLOCINFO>-ALLOCATIONACTUALPLANVARIANT = 1.
<PALLOCINFO>-ALLOCATIONFIELDNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PALLOCINFO-ALLOCATIONFIELDTYPE, sy-vline,
  WA_PALLOCINFO-SUPERIORTOFIELD1, sy-vline,
  WA_PALLOCINFO-SUPERIORTOFIELD2, sy-vline,
  WA_PALLOCINFO-ALLOCATIONCYCLEFIELDACTIVE, sy-vline,
  WA_PALLOCINFO-SENDERTRACINGFIELDACTIVE, sy-vline,
  WA_PALLOCINFO-SENDERFIELDACTIVE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PALLOCINFO 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_PALLOCINFO 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_PALLOCINFO INTO WA_PALLOCINFO.


*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_PALLOCINFO_STR, 
MANDT TYPE STRING,
ALLOCATIONTYPE TYPE STRING,
ALLOCATIONPOSTINGTYPE TYPE STRING,
ALLOCATIONACTUALPLANVARIANT TYPE STRING,
ALLOCATIONFIELDNAME TYPE STRING,
ALLOCATIONFIELDTYPE TYPE STRING,
SUPERIORTOFIELD1 TYPE STRING,
SUPERIORTOFIELD2 TYPE STRING,
ALLOCATIONCYCLEFIELDACTIVE TYPE STRING,
SENDERTRACINGFIELDACTIVE TYPE STRING,
SENDERFIELDACTIVE TYPE STRING,
RECEIVERFIELDACTIVE TYPE STRING,
RECEIVERTRACINGFIELDACTIVE TYPE STRING,
ALLOCATIONCYCLEFIELDGROUP TYPE STRING,
SENDERTRACINGFIELDGROUP TYPE STRING,
SENDERFIELDGROUP TYPE STRING,
RECEIVERFIELDGROUP TYPE STRING,
RECEIVERTRACINGFIELDGROUP TYPE STRING,
ALLOCATIONCYCLESINGLEFIELD TYPE STRING,
SENDERTRACINGSINGLEFIELD TYPE STRING,
SENDERSINGLEFIELD TYPE STRING,
RECEIVERSINGLEFIELD TYPE STRING,
RECEIVERTRACINGSINGLEFIELD TYPE STRING,
ALLOCATIONCYCLEFIELDINTERVAL TYPE STRING,
SENDERTRACINGFIELDINTERVAL TYPE STRING,
SENDERFIELDINTERVAL TYPE STRING,
RECEIVERFIELDINTERVAL TYPE STRING,
RECEIVERTRACINGFIELDINTERVAL TYPE STRING,
ALLOCATIONFIELDDISPLAYPOSITION TYPE STRING,
ALLOCATIONFIELDLABEL TYPE STRING,
ALLOCATIONFIELDLENGTH TYPE STRING,
ALLOCATIONFIELDPROPERTYTYPE TYPE STRING,
ALLOCATIONFIELDISUPPERCASE TYPE STRING,
ALLOCATIONFIELDDECIMALPLACES TYPE STRING,
ALLOCATIONFIELDPRECISION TYPE STRING,
ALLOCATIONFIELDSCALE TYPE STRING,
ALLOCATIONSEARCHHELPENTITYNAME TYPE STRING,
ALLOCATIONSEARCHHELPOUTPUT TYPE STRING,
GROUPVALUEHELPENTITYNAME TYPE STRING,
GROUPVALUEHELPOUTPUT TYPE STRING,
GROUPVALUEHELPOUTPUTTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PALLOCINFO_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_PALLOCINFO_STR-MANDT sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONTYPE sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONPOSTINGTYPE sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONACTUALPLANVARIANT sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDNAME sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDTYPE sy-vline 
WA_PALLOCINFO_STR-SUPERIORTOFIELD1 sy-vline 
WA_PALLOCINFO_STR-SUPERIORTOFIELD2 sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONCYCLEFIELDACTIVE sy-vline 
WA_PALLOCINFO_STR-SENDERTRACINGFIELDACTIVE sy-vline 
WA_PALLOCINFO_STR-SENDERFIELDACTIVE sy-vline 
WA_PALLOCINFO_STR-RECEIVERFIELDACTIVE sy-vline 
WA_PALLOCINFO_STR-RECEIVERTRACINGFIELDACTIVE sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONCYCLEFIELDGROUP sy-vline 
WA_PALLOCINFO_STR-SENDERTRACINGFIELDGROUP sy-vline 
WA_PALLOCINFO_STR-SENDERFIELDGROUP sy-vline 
WA_PALLOCINFO_STR-RECEIVERFIELDGROUP sy-vline 
WA_PALLOCINFO_STR-RECEIVERTRACINGFIELDGROUP sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONCYCLESINGLEFIELD sy-vline 
WA_PALLOCINFO_STR-SENDERTRACINGSINGLEFIELD sy-vline 
WA_PALLOCINFO_STR-SENDERSINGLEFIELD sy-vline 
WA_PALLOCINFO_STR-RECEIVERSINGLEFIELD sy-vline 
WA_PALLOCINFO_STR-RECEIVERTRACINGSINGLEFIELD sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONCYCLEFIELDINTERVAL sy-vline 
WA_PALLOCINFO_STR-SENDERTRACINGFIELDINTERVAL sy-vline 
WA_PALLOCINFO_STR-SENDERFIELDINTERVAL sy-vline 
WA_PALLOCINFO_STR-RECEIVERFIELDINTERVAL sy-vline 
WA_PALLOCINFO_STR-RECEIVERTRACINGFIELDINTERVAL sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDDISPLAYPOSITION sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDLABEL sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDLENGTH sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDPROPERTYTYPE sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDISUPPERCASE sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDDECIMALPLACES sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDPRECISION sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONFIELDSCALE sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONSEARCHHELPENTITYNAME sy-vline 
WA_PALLOCINFO_STR-ALLOCATIONSEARCHHELPOUTPUT sy-vline 
WA_PALLOCINFO_STR-GROUPVALUEHELPENTITYNAME sy-vline 
WA_PALLOCINFO_STR-GROUPVALUEHELPOUTPUT sy-vline 
WA_PALLOCINFO_STR-GROUPVALUEHELPOUTPUTTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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