ABAP Select data from SAP table TLANIMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TLANIMP
*  INTO TABLE @DATA(IT_TLANIMP2).
*--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_TLANIMP INDEX 1 INTO DATA(WA_TLANIMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TLANIMP>-ACTID = 1.
<TLANIMP>-SPRAS = 1.
<TLANIMP>-REL = 1.
<TLANIMP>-UNAME = 1.
<TLANIMP>-TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TLANIMP-ADATE, sy-vline,
  WA_TLANIMP-ATIME, sy-vline,
  WA_TLANIMP-JOBNAME, sy-vline,
  WA_TLANIMP-JOBCOUNT, sy-vline,
  WA_TLANIMP-STATUS, sy-vline,
  WA_TLANIMP-MAXRC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TLANIMP 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_TLANIMP 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_TLANIMP INTO WA_TLANIMP.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_TLANIMP-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TLANIMP-SPRAS.
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_TLANIMP_STR, 
ACTID TYPE STRING,
SPRAS TYPE STRING,
REL TYPE STRING,
UNAME TYPE STRING,
TEXT TYPE STRING,
ADATE TYPE STRING,
ATIME TYPE STRING,
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
STATUS TYPE STRING,
MAXRC TYPE STRING,
LOG_HANDLE TYPE STRING,
PACK TYPE STRING,
MODUS TYPE STRING,
UCON TYPE STRING,
TRKORR TYPE STRING,
PATH TYPE STRING,
PARCEL TYPE STRING,
DIRTYPE TYPE STRING,
UNPACK TYPE STRING,
PARIMP TYPE STRING,
CLICAS TYPE STRING,
CTCOFF TYPE STRING,
TIMESTAMP TYPE STRING,
FLAG_FULL TYPE STRING,
MASTERLANG TYPE STRING,
NO_DDIC_ACT TYPE STRING,
SCHED_SUPP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TLANIMP_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_TLANIMP_STR-ACTID sy-vline 
WA_TLANIMP_STR-SPRAS sy-vline 
WA_TLANIMP_STR-REL sy-vline 
WA_TLANIMP_STR-UNAME sy-vline 
WA_TLANIMP_STR-TEXT sy-vline 
WA_TLANIMP_STR-ADATE sy-vline 
WA_TLANIMP_STR-ATIME sy-vline 
WA_TLANIMP_STR-JOBNAME sy-vline 
WA_TLANIMP_STR-JOBCOUNT sy-vline 
WA_TLANIMP_STR-STATUS sy-vline 
WA_TLANIMP_STR-MAXRC sy-vline 
WA_TLANIMP_STR-LOG_HANDLE sy-vline 
WA_TLANIMP_STR-PACK sy-vline 
WA_TLANIMP_STR-MODUS sy-vline 
WA_TLANIMP_STR-UCON sy-vline 
WA_TLANIMP_STR-TRKORR sy-vline 
WA_TLANIMP_STR-PATH sy-vline 
WA_TLANIMP_STR-PARCEL sy-vline 
WA_TLANIMP_STR-DIRTYPE sy-vline 
WA_TLANIMP_STR-UNPACK sy-vline 
WA_TLANIMP_STR-PARIMP sy-vline 
WA_TLANIMP_STR-CLICAS sy-vline 
WA_TLANIMP_STR-CTCOFF sy-vline 
WA_TLANIMP_STR-TIMESTAMP sy-vline 
WA_TLANIMP_STR-FLAG_FULL sy-vline 
WA_TLANIMP_STR-MASTERLANG sy-vline 
WA_TLANIMP_STR-NO_DDIC_ACT sy-vline 
WA_TLANIMP_STR-SCHED_SUPP sy-vline      INTO ld_text SEPARATED BY SPACE.

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