ABAP Select data from SAP table P05_LB_PARAMETERS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P05_LB_PARAMETERS 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 P05_LB_PARAMETERS. 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 P05_LB_PARAMETERS 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_P05_LB_PARAMETERS TYPE STANDARD TABLE OF P05_LB_PARAMETERS,
      WA_P05_LB_PARAMETERS TYPE P05_LB_PARAMETERS,
      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: <P05_LB_PARAMETERS> TYPE P05_LB_PARAMETERS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P05_LB_PARAMETERS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P05_LB_PARAMETERS
  INTO TABLE IT_P05_LB_PARAMETERS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P05_LB_PARAMETERS
*  INTO TABLE @DATA(IT_P05_LB_PARAMETERS2).
*--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_P05_LB_PARAMETERS INDEX 1 INTO DATA(WA_P05_LB_PARAMETERS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P05_LB_PARAMETERS ASSIGNING <P05_LB_PARAMETERS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P05_LB_PARAMETERS>-PRAOW = 1.
<P05_LB_PARAMETERS>-PRANW = 1.
<P05_LB_PARAMETERS>-PAWBZ = 1.
<P05_LB_PARAMETERS>-LB_1E = 1.
<P05_LB_PARAMETERS>-LB_2E = 1.

ENDLOOP.

LOOP AT IT_P05_LB_PARAMETERS INTO WA_P05_LB_PARAMETERS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P05_LB_PARAMETERS-LSCH1, sy-vline,
  WA_P05_LB_PARAMETERS-LSCH2, sy-vline,
  WA_P05_LB_PARAMETERS-LSCH3, sy-vline,
  WA_P05_LB_PARAMETERS-LMB65, sy-vline,
  WA_P05_LB_PARAMETERS-B1, sy-vline,
  WA_P05_LB_PARAMETERS-B2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P05_LB_PARAMETERS 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_P05_LB_PARAMETERS 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_P05_LB_PARAMETERS INTO WA_P05_LB_PARAMETERS.


*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_P05_LB_PARAMETERS_STR, 
PRAOW TYPE STRING,
PRANW TYPE STRING,
PAWBZ TYPE STRING,
LB_1E TYPE STRING,
LB_2E TYPE STRING,
LSCH1 TYPE STRING,
LSCH2 TYPE STRING,
LSCH3 TYPE STRING,
LMB65 TYPE STRING,
B1 TYPE STRING,
B2 TYPE STRING,
B3 TYPE STRING,
B4 TYPE STRING,
C1 TYPE STRING,
C2 TYPE STRING,
C3 TYPE STRING,
INH_MAX1 TYPE STRING,
INH_MAX2 TYPE STRING,
LPER0 TYPE STRING,
LPER1 TYPE STRING,
LPER2 TYPE STRING,
LPER3 TYPE STRING,
LPER4 TYPE STRING,
LPER1_STANDAARD TYPE STRING,
PBB0 TYPE STRING,
PBB1 TYPE STRING,
PBB2 TYPE STRING,
PBB3 TYPE STRING,
PBB4 TYPE STRING,
INH_MAX1_LAAG TYPE STRING,
INH_MAX2_LAAG TYPE STRING,
BEDRAG_T TYPE STRING,
LJMAX TYPE STRING,
LBST1 TYPE STRING,
FBBAK TYPE STRING,
LPER_PLUS TYPE STRING,
HERL_LB TYPE STRING,
HERL_PH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P05_LB_PARAMETERS_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_P05_LB_PARAMETERS_STR-PRAOW sy-vline 
WA_P05_LB_PARAMETERS_STR-PRANW sy-vline 
WA_P05_LB_PARAMETERS_STR-PAWBZ sy-vline 
WA_P05_LB_PARAMETERS_STR-LB_1E sy-vline 
WA_P05_LB_PARAMETERS_STR-LB_2E sy-vline 
WA_P05_LB_PARAMETERS_STR-LSCH1 sy-vline 
WA_P05_LB_PARAMETERS_STR-LSCH2 sy-vline 
WA_P05_LB_PARAMETERS_STR-LSCH3 sy-vline 
WA_P05_LB_PARAMETERS_STR-LMB65 sy-vline 
WA_P05_LB_PARAMETERS_STR-B1 sy-vline 
WA_P05_LB_PARAMETERS_STR-B2 sy-vline 
WA_P05_LB_PARAMETERS_STR-B3 sy-vline 
WA_P05_LB_PARAMETERS_STR-B4 sy-vline 
WA_P05_LB_PARAMETERS_STR-C1 sy-vline 
WA_P05_LB_PARAMETERS_STR-C2 sy-vline 
WA_P05_LB_PARAMETERS_STR-C3 sy-vline 
WA_P05_LB_PARAMETERS_STR-INH_MAX1 sy-vline 
WA_P05_LB_PARAMETERS_STR-INH_MAX2 sy-vline 
WA_P05_LB_PARAMETERS_STR-LPER0 sy-vline 
WA_P05_LB_PARAMETERS_STR-LPER1 sy-vline 
WA_P05_LB_PARAMETERS_STR-LPER2 sy-vline 
WA_P05_LB_PARAMETERS_STR-LPER3 sy-vline 
WA_P05_LB_PARAMETERS_STR-LPER4 sy-vline 
WA_P05_LB_PARAMETERS_STR-LPER1_STANDAARD sy-vline 
WA_P05_LB_PARAMETERS_STR-PBB0 sy-vline 
WA_P05_LB_PARAMETERS_STR-PBB1 sy-vline 
WA_P05_LB_PARAMETERS_STR-PBB2 sy-vline 
WA_P05_LB_PARAMETERS_STR-PBB3 sy-vline 
WA_P05_LB_PARAMETERS_STR-PBB4 sy-vline 
WA_P05_LB_PARAMETERS_STR-INH_MAX1_LAAG sy-vline 
WA_P05_LB_PARAMETERS_STR-INH_MAX2_LAAG sy-vline 
WA_P05_LB_PARAMETERS_STR-BEDRAG_T sy-vline 
WA_P05_LB_PARAMETERS_STR-LJMAX sy-vline 
WA_P05_LB_PARAMETERS_STR-LBST1 sy-vline 
WA_P05_LB_PARAMETERS_STR-FBBAK sy-vline 
WA_P05_LB_PARAMETERS_STR-LPER_PLUS sy-vline 
WA_P05_LB_PARAMETERS_STR-HERL_LB sy-vline 
WA_P05_LB_PARAMETERS_STR-HERL_PH sy-vline      INTO ld_text SEPARATED BY SPACE.

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