ABAP Select data from SAP table P44_AIR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P44_AIR 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 P44_AIR. 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 P44_AIR 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_P44_AIR TYPE STANDARD TABLE OF P44_AIR,
      WA_P44_AIR TYPE P44_AIR,
      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: <P44_AIR> TYPE P44_AIR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P44_AIR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P44_AIR
  INTO TABLE IT_P44_AIR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P44_AIR
*  INTO TABLE @DATA(IT_P44_AIR2).
*--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_P44_AIR INDEX 1 INTO DATA(WA_P44_AIR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P44_AIR ASSIGNING <P44_AIR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P44_AIR>-BUTXT = 1.
<P44_AIR>-TXRNO = 1.
<P44_AIR>-STREET = 1.
<P44_AIR>-POST_CODE1 = 1.
<P44_AIR>-CITY1 = 1.

ENDLOOP.

LOOP AT IT_P44_AIR INTO WA_P44_AIR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P44_AIR-SMTPADR, sy-vline,
  WA_P44_AIR-TEL_NUMBER, sy-vline,
  WA_P44_AIR-FAX_NUMBER, sy-vline,
  WA_P44_AIR-LIBUS, sy-vline,
  WA_P44_AIR-CONNR, sy-vline,
  WA_P44_AIR-CGRNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P44_AIR 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_P44_AIR 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_P44_AIR INTO WA_P44_AIR.


*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 SXIDN, internal->external for field SMTPADR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_P44_AIR-SMTPADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P44_AIR-SMTPADR.
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_P44_AIR_STR, 
BUTXT TYPE STRING,
TXRNO TYPE STRING,
STREET TYPE STRING,
POST_CODE1 TYPE STRING,
CITY1 TYPE STRING,
SMTPADR TYPE STRING,
TEL_NUMBER TYPE STRING,
FAX_NUMBER TYPE STRING,
LIBUS TYPE STRING,
CONNR TYPE STRING,
CGRNO TYPE STRING,
BANKN_ER TYPE STRING,
CODIV TYPE STRING,
PERNR TYPE STRING,
PERID TYPE STRING,
NATIO TYPE STRING,
ENAME TYPE STRING,
HIRED TYPE STRING,
FIRED TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
PSTLZ TYPE STRING,
SPTXT TYPE STRING,
STLTX TYPE STRING,
BANKN_EE TYPE STRING,
FTIME TYPE STRING,
HRSWK TYPE STRING,
BEGDA TYPE STRING,
WKDAY TYPE STRING,
BEGDA_OA TYPE STRING,
ENDDA_OA TYPE STRING,
AWART TYPE STRING,
TAUTH TYPE STRING,
RATE1 TYPE STRING,
RATE2 TYPE STRING,
TXAM1 TYPE STRING,
RATE3 TYPE STRING,
IDA TYPE STRING,
ACRSGR TYPE STRING,
IDA2 TYPE STRING,
OCCOD TYPE STRING,
SOBEG TYPE STRING,
SOEND TYPE STRING,
SUMHO TYPE STRING,
NUMHO TYPE STRING,
SUMGR TYPE STRING,
AMTGR TYPE STRING,
CURRGR TYPE STRING,
SUMBE TYPE STRING,
AMTBE TYPE STRING,
SUMOA TYPE STRING,
AMTOA TYPE STRING,
SUM28 TYPE STRING,
AMT28 TYPE STRING,
SUMLY TYPE STRING,
AMTLY TYPE STRING,
SUMVB TYPE STRING,
AMTVB TYPE STRING,
RIP1_BEGDA TYPE STRING,
RIP1_BETRG TYPE STRING,
RIP2_BEGDA TYPE STRING,
RIP2_BETRG TYPE STRING,
RIP3_BEGDA TYPE STRING,
RIP3_BETRG TYPE STRING,
RIP4_BEGDA TYPE STRING,
RIP4_BETRG TYPE STRING,
RIP5_BEGDA TYPE STRING,
RIP5_BETRG TYPE STRING,
UPABS1_BEGDA TYPE STRING,
UPABS1_ENDDA TYPE STRING,
UPABS1_AWART TYPE STRING,
UPABS2_BEGDA TYPE STRING,
UPABS2_ENDDA TYPE STRING,
UPABS2_AWART TYPE STRING,
UPABS3_BEGDA TYPE STRING,
UPABS3_ENDDA TYPE STRING,
UPABS3_AWART TYPE STRING,
UPABS4_BEGDA TYPE STRING,
UPABS4_ENDDA TYPE STRING,
UPABS4_AWART TYPE STRING,
UPABS5_BEGDA TYPE STRING,
UPABS5_ENDDA TYPE STRING,
UPABS5_AWART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P44_AIR_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_P44_AIR_STR-BUTXT sy-vline 
WA_P44_AIR_STR-TXRNO sy-vline 
WA_P44_AIR_STR-STREET sy-vline 
WA_P44_AIR_STR-POST_CODE1 sy-vline 
WA_P44_AIR_STR-CITY1 sy-vline 
WA_P44_AIR_STR-SMTPADR sy-vline 
WA_P44_AIR_STR-TEL_NUMBER sy-vline 
WA_P44_AIR_STR-FAX_NUMBER sy-vline 
WA_P44_AIR_STR-LIBUS sy-vline 
WA_P44_AIR_STR-CONNR sy-vline 
WA_P44_AIR_STR-CGRNO sy-vline 
WA_P44_AIR_STR-BANKN_ER sy-vline 
WA_P44_AIR_STR-CODIV sy-vline 
WA_P44_AIR_STR-PERNR sy-vline 
WA_P44_AIR_STR-PERID sy-vline 
WA_P44_AIR_STR-NATIO sy-vline 
WA_P44_AIR_STR-ENAME sy-vline 
WA_P44_AIR_STR-HIRED sy-vline 
WA_P44_AIR_STR-FIRED sy-vline 
WA_P44_AIR_STR-STRAS sy-vline 
WA_P44_AIR_STR-ORT01 sy-vline 
WA_P44_AIR_STR-PSTLZ sy-vline 
WA_P44_AIR_STR-SPTXT sy-vline 
WA_P44_AIR_STR-STLTX sy-vline 
WA_P44_AIR_STR-BANKN_EE sy-vline 
WA_P44_AIR_STR-FTIME sy-vline 
WA_P44_AIR_STR-HRSWK sy-vline 
WA_P44_AIR_STR-BEGDA sy-vline 
WA_P44_AIR_STR-WKDAY sy-vline 
WA_P44_AIR_STR-BEGDA_OA sy-vline 
WA_P44_AIR_STR-ENDDA_OA sy-vline 
WA_P44_AIR_STR-AWART sy-vline 
WA_P44_AIR_STR-TAUTH sy-vline 
WA_P44_AIR_STR-RATE1 sy-vline 
WA_P44_AIR_STR-RATE2 sy-vline 
WA_P44_AIR_STR-TXAM1 sy-vline 
WA_P44_AIR_STR-RATE3 sy-vline 
WA_P44_AIR_STR-IDA sy-vline 
WA_P44_AIR_STR-ACRSGR sy-vline 
WA_P44_AIR_STR-IDA2 sy-vline 
WA_P44_AIR_STR-OCCOD sy-vline 
WA_P44_AIR_STR-SOBEG sy-vline 
WA_P44_AIR_STR-SOEND sy-vline 
WA_P44_AIR_STR-SUMHO sy-vline 
WA_P44_AIR_STR-NUMHO sy-vline 
WA_P44_AIR_STR-SUMGR sy-vline 
WA_P44_AIR_STR-AMTGR sy-vline 
WA_P44_AIR_STR-CURRGR sy-vline 
WA_P44_AIR_STR-SUMBE sy-vline 
WA_P44_AIR_STR-AMTBE sy-vline 
WA_P44_AIR_STR-SUMOA sy-vline 
WA_P44_AIR_STR-AMTOA sy-vline 
WA_P44_AIR_STR-SUM28 sy-vline 
WA_P44_AIR_STR-AMT28 sy-vline 
WA_P44_AIR_STR-SUMLY sy-vline 
WA_P44_AIR_STR-AMTLY sy-vline 
WA_P44_AIR_STR-SUMVB sy-vline 
WA_P44_AIR_STR-AMTVB sy-vline 
WA_P44_AIR_STR-RIP1_BEGDA sy-vline 
WA_P44_AIR_STR-RIP1_BETRG sy-vline 
WA_P44_AIR_STR-RIP2_BEGDA sy-vline 
WA_P44_AIR_STR-RIP2_BETRG sy-vline 
WA_P44_AIR_STR-RIP3_BEGDA sy-vline 
WA_P44_AIR_STR-RIP3_BETRG sy-vline 
WA_P44_AIR_STR-RIP4_BEGDA sy-vline 
WA_P44_AIR_STR-RIP4_BETRG sy-vline 
WA_P44_AIR_STR-RIP5_BEGDA sy-vline 
WA_P44_AIR_STR-RIP5_BETRG sy-vline 
WA_P44_AIR_STR-UPABS1_BEGDA sy-vline 
WA_P44_AIR_STR-UPABS1_ENDDA sy-vline 
WA_P44_AIR_STR-UPABS1_AWART sy-vline 
WA_P44_AIR_STR-UPABS2_BEGDA sy-vline 
WA_P44_AIR_STR-UPABS2_ENDDA sy-vline 
WA_P44_AIR_STR-UPABS2_AWART sy-vline 
WA_P44_AIR_STR-UPABS3_BEGDA sy-vline 
WA_P44_AIR_STR-UPABS3_ENDDA sy-vline 
WA_P44_AIR_STR-UPABS3_AWART sy-vline 
WA_P44_AIR_STR-UPABS4_BEGDA sy-vline 
WA_P44_AIR_STR-UPABS4_ENDDA sy-vline 
WA_P44_AIR_STR-UPABS4_AWART sy-vline 
WA_P44_AIR_STR-UPABS5_BEGDA sy-vline 
WA_P44_AIR_STR-UPABS5_ENDDA sy-vline 
WA_P44_AIR_STR-UPABS5_AWART sy-vline      INTO ld_text SEPARATED BY SPACE.

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