ABAP Select data from SAP table T5LTC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5LTC 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 T5LTC. 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 T5LTC 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_T5LTC TYPE STANDARD TABLE OF T5LTC,
      WA_T5LTC TYPE T5LTC,
      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: <T5LTC> TYPE T5LTC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5LTC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5LTC
  INTO TABLE IT_T5LTC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5LTC
*  INTO TABLE @DATA(IT_T5LTC2).
*--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_T5LTC INDEX 1 INTO DATA(WA_T5LTC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5LTC ASSIGNING <T5LTC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5LTC>-MANDT = 1.
<T5LTC>-TNOER = 1.
<T5LTC>-INYER = 1.
<T5LTC>-INMTH = 1.
<T5LTC>-RCTNO = 1.

ENDLOOP.

LOOP AT IT_T5LTC INTO WA_T5LTC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5LTC-RCTDT, sy-vline,
  WA_T5LTC-CHQNO, sy-vline,
  WA_T5LTC-R38NO, sy-vline,
  WA_T5LTC-R38DT, sy-vline,
  WA_T5LTC-CHQ38, sy-vline,
  WA_T5LTC-P1RCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5LTC 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_T5LTC 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_T5LTC INTO WA_T5LTC.


*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_T5LTC_STR, 
MANDT TYPE STRING,
TNOER TYPE STRING,
INYER TYPE STRING,
INMTH TYPE STRING,
RCTNO TYPE STRING,
RCTDT TYPE STRING,
CHQNO TYPE STRING,
R38NO TYPE STRING,
R38DT TYPE STRING,
CHQ38 TYPE STRING,
P1RCT TYPE STRING,
P1DTE TYPE STRING,
P1CHQ TYPE STRING,
P2RCT TYPE STRING,
P2DTE TYPE STRING,
P2CHQ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5LTC_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_T5LTC_STR-MANDT sy-vline 
WA_T5LTC_STR-TNOER sy-vline 
WA_T5LTC_STR-INYER sy-vline 
WA_T5LTC_STR-INMTH sy-vline 
WA_T5LTC_STR-RCTNO sy-vline 
WA_T5LTC_STR-RCTDT sy-vline 
WA_T5LTC_STR-CHQNO sy-vline 
WA_T5LTC_STR-R38NO sy-vline 
WA_T5LTC_STR-R38DT sy-vline 
WA_T5LTC_STR-CHQ38 sy-vline 
WA_T5LTC_STR-P1RCT sy-vline 
WA_T5LTC_STR-P1DTE sy-vline 
WA_T5LTC_STR-P1CHQ sy-vline 
WA_T5LTC_STR-P2RCT sy-vline 
WA_T5LTC_STR-P2DTE sy-vline 
WA_T5LTC_STR-P2CHQ sy-vline      INTO ld_text SEPARATED BY SPACE.

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