ABAP Select data from SAP table ALAVLJ630CL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ALAVLJ630CL 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 ALAVLJ630CL. 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 ALAVLJ630CL 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_ALAVLJ630CL TYPE STANDARD TABLE OF ALAVLJ630CL,
      WA_ALAVLJ630CL TYPE ALAVLJ630CL,
      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: <ALAVLJ630CL> TYPE ALAVLJ630CL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ALAVLJ630CL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ALAVLJ630CL
  INTO TABLE IT_ALAVLJ630CL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ALAVLJ630CL
*  INTO TABLE @DATA(IT_ALAVLJ630CL2).
*--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_ALAVLJ630CL INDEX 1 INTO DATA(WA_ALAVLJ630CL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ALAVLJ630CL ASSIGNING <ALAVLJ630CL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ALAVLJ630CL>-NSGUID = 1.
<ALAVLJ630CL>-NAME = 1.
<ALAVLJ630CL>-HOST = 1.
<ALAVLJ630CL>-SERV = 1.
<ALAVLJ630CL>-MSGTYPES = 1.

ENDLOOP.

LOOP AT IT_ALAVLJ630CL INTO WA_ALAVLJ630CL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ALAVLJ630CL-HOSTADR, sy-vline,
  WA_ALAVLJ630CL-SERVNO, sy-vline,
  WA_ALAVLJ630CL-STATE, sy-vline,
  WA_ALAVLJ630CL-MSGNAMES, sy-vline,
  WA_ALAVLJ630CL-DIAG_HOST, sy-vline,
  WA_ALAVLJ630CL-DIAG_PORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ALAVLJ630CL 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_ALAVLJ630CL 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_ALAVLJ630CL INTO WA_ALAVLJ630CL.


*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_ALAVLJ630CL_STR, 
NSGUID TYPE STRING,
NAME TYPE STRING,
HOST TYPE STRING,
SERV TYPE STRING,
MSGTYPES TYPE STRING,
HOSTADR TYPE STRING,
SERVNO TYPE STRING,
STATE TYPE STRING,
MSGNAMES TYPE STRING,
DIAG_HOST TYPE STRING,
DIAG_PORT TYPE STRING,
DIAGS_HOST TYPE STRING,
DIAGS_PORT TYPE STRING,
RFC_HOST TYPE STRING,
RFC_PORT TYPE STRING,
RFCS_HOST TYPE STRING,
RFCS_PORT TYPE STRING,
HTTP_HOST TYPE STRING,
HTTP_PORT TYPE STRING,
HTTPS_HOST TYPE STRING,
HTTPS_PORT TYPE STRING,
FTP_HOST TYPE STRING,
FTP_PORT TYPE STRING,
SMTP_HOST TYPE STRING,
SMTP_PORT TYPE STRING,
NNTP_HOST TYPE STRING,
NNTP_PORT TYPE STRING,
DIAG_HOST_EXT TYPE STRING,
DIAG_PORT_EXT TYPE STRING,
DIAGS_HOST_EXT TYPE STRING,
DIAGS_PORT_EXT TYPE STRING,
RFC_HOST_EXT TYPE STRING,
RFC_PORT_EXT TYPE STRING,
RFCS_HOST_EXT TYPE STRING,
RFCS_PORT_EXT TYPE STRING,
HTTP_HOST_EXT TYPE STRING,
HTTP_PORT_EXT TYPE STRING,
HTTPS_HOST_EXT TYPE STRING,
HTTPS_PORT_EXT TYPE STRING,
FTP_HOST_EXT TYPE STRING,
FTP_PORT_EXT TYPE STRING,
SMTP_HOST_EXT TYPE STRING,
SMTP_PORT_EXT TYPE STRING,
NNTP_HOST_EXT TYPE STRING,
NNTP_PORT_EXT TYPE STRING,
J2EE_HOST TYPE STRING,
J2EE_PORT TYPE STRING,
J2EE_LB TYPE STRING,
J2EE_PREFIX TYPE STRING,
J2EE_RCODE TYPE STRING,
J2EE_RSTAT TYPE STRING,
J2EE_RTIME TYPE STRING,
J2EES_HOST TYPE STRING,
J2EES_PORT TYPE STRING,
J2EES_LB TYPE STRING,
J2EES_RCODE TYPE STRING,
J2EES_RSTAT TYPE STRING,
J2EES_RTIME TYPE STRING,
J2EE_HOST_EXT TYPE STRING,
J2EE_PORT_EXT TYPE STRING,
J2EES_HOST_EXT TYPE STRING,
J2EES_PORT_EXT TYPE STRING,
P4_HOST TYPE STRING,
P4_PORT TYPE STRING,
P4_LB TYPE STRING,
P4_PREFIX TYPE STRING,
P4_RCODE TYPE STRING,
P4_RSTAT TYPE STRING,
P4_RTIME TYPE STRING,
TRXNS_HOST TYPE STRING,
TRXNS_PORT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ALAVLJ630CL_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_ALAVLJ630CL_STR-NSGUID sy-vline 
WA_ALAVLJ630CL_STR-NAME sy-vline 
WA_ALAVLJ630CL_STR-HOST sy-vline 
WA_ALAVLJ630CL_STR-SERV sy-vline 
WA_ALAVLJ630CL_STR-MSGTYPES sy-vline 
WA_ALAVLJ630CL_STR-HOSTADR sy-vline 
WA_ALAVLJ630CL_STR-SERVNO sy-vline 
WA_ALAVLJ630CL_STR-STATE sy-vline 
WA_ALAVLJ630CL_STR-MSGNAMES sy-vline 
WA_ALAVLJ630CL_STR-DIAG_HOST sy-vline 
WA_ALAVLJ630CL_STR-DIAG_PORT sy-vline 
WA_ALAVLJ630CL_STR-DIAGS_HOST sy-vline 
WA_ALAVLJ630CL_STR-DIAGS_PORT sy-vline 
WA_ALAVLJ630CL_STR-RFC_HOST sy-vline 
WA_ALAVLJ630CL_STR-RFC_PORT sy-vline 
WA_ALAVLJ630CL_STR-RFCS_HOST sy-vline 
WA_ALAVLJ630CL_STR-RFCS_PORT sy-vline 
WA_ALAVLJ630CL_STR-HTTP_HOST sy-vline 
WA_ALAVLJ630CL_STR-HTTP_PORT sy-vline 
WA_ALAVLJ630CL_STR-HTTPS_HOST sy-vline 
WA_ALAVLJ630CL_STR-HTTPS_PORT sy-vline 
WA_ALAVLJ630CL_STR-FTP_HOST sy-vline 
WA_ALAVLJ630CL_STR-FTP_PORT sy-vline 
WA_ALAVLJ630CL_STR-SMTP_HOST sy-vline 
WA_ALAVLJ630CL_STR-SMTP_PORT sy-vline 
WA_ALAVLJ630CL_STR-NNTP_HOST sy-vline 
WA_ALAVLJ630CL_STR-NNTP_PORT sy-vline 
WA_ALAVLJ630CL_STR-DIAG_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-DIAG_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-DIAGS_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-DIAGS_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-RFC_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-RFC_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-RFCS_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-RFCS_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-HTTP_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-HTTP_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-HTTPS_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-HTTPS_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-FTP_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-FTP_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-SMTP_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-SMTP_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-NNTP_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-NNTP_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-J2EE_HOST sy-vline 
WA_ALAVLJ630CL_STR-J2EE_PORT sy-vline 
WA_ALAVLJ630CL_STR-J2EE_LB sy-vline 
WA_ALAVLJ630CL_STR-J2EE_PREFIX sy-vline 
WA_ALAVLJ630CL_STR-J2EE_RCODE sy-vline 
WA_ALAVLJ630CL_STR-J2EE_RSTAT sy-vline 
WA_ALAVLJ630CL_STR-J2EE_RTIME sy-vline 
WA_ALAVLJ630CL_STR-J2EES_HOST sy-vline 
WA_ALAVLJ630CL_STR-J2EES_PORT sy-vline 
WA_ALAVLJ630CL_STR-J2EES_LB sy-vline 
WA_ALAVLJ630CL_STR-J2EES_RCODE sy-vline 
WA_ALAVLJ630CL_STR-J2EES_RSTAT sy-vline 
WA_ALAVLJ630CL_STR-J2EES_RTIME sy-vline 
WA_ALAVLJ630CL_STR-J2EE_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-J2EE_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-J2EES_HOST_EXT sy-vline 
WA_ALAVLJ630CL_STR-J2EES_PORT_EXT sy-vline 
WA_ALAVLJ630CL_STR-P4_HOST sy-vline 
WA_ALAVLJ630CL_STR-P4_PORT sy-vline 
WA_ALAVLJ630CL_STR-P4_LB sy-vline 
WA_ALAVLJ630CL_STR-P4_PREFIX sy-vline 
WA_ALAVLJ630CL_STR-P4_RCODE sy-vline 
WA_ALAVLJ630CL_STR-P4_RSTAT sy-vline 
WA_ALAVLJ630CL_STR-P4_RTIME sy-vline 
WA_ALAVLJ630CL_STR-TRXNS_HOST sy-vline 
WA_ALAVLJ630CL_STR-TRXNS_PORT sy-vline      INTO ld_text SEPARATED BY SPACE.

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