ABAP Select data from SAP table X031L into internal table



Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP X031L 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 X031L. 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 X031L 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_X031L TYPE STANDARD TABLE OF X031L,
      WA_X031L TYPE X031L,
      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: <X031L> TYPE X031L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_X031L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM X031L
  INTO TABLE IT_X031L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM X031L
*  INTO TABLE @DATA(IT_X031L2).
*--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_X031L INDEX 1 INTO DATA(WA_X031L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_X031L ASSIGNING <X031L>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<X031L>-TABNAME = 1.
<X031L>-POSITION = 1.
<X031L>-FLAG1 = 1.
<X031L>-FLAG2 = 1.
<X031L>-FLAG3 = 1.
ENDLOOP.

LOOP AT IT_X031L INTO WA_X031L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_X031L-FLAG4, sy-vline,
WA_X031L-DBTABPOS, sy-vline,
WA_X031L-FIELDTYPE, sy-vline,
WA_X031L-OFFSET, sy-vline,
WA_X031L-DBLENGTH, sy-vline,
WA_X031L-DBLENGTH2, sy-vline.
ENDLOOP. *Add any further fields from structure WA_X031L 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_X031L 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_X031L INTO WA_X031L. *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 DTYPE, internal->external for field DTYP CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT' EXPORTING input = WA_X031L-DTYP IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_X031L-DTYP.
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_X031L_STR,
TABNAME TYPE STRING,
POSITION TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
DBTABPOS TYPE STRING,
FIELDTYPE TYPE STRING,
OFFSET TYPE STRING,
DBLENGTH TYPE STRING,
DBLENGTH2 TYPE STRING,
EXLENGTH TYPE STRING,
DECIMALS TYPE STRING,
DEPTH TYPE STRING,
FLDALIGN TYPE STRING,
FIELDNAME TYPE STRING,
ROLLNAME TYPE STRING,
ABTYPE TYPE STRING,
DTYP TYPE STRING,
EXID TYPE STRING,
REFTABLE TYPE STRING,
REFFIELD TYPE STRING,
PRECFIELD TYPE STRING,
CONVEXIT TYPE STRING,
MEMORYID TYPE STRING,
CHECKTABLE TYPE STRING,
DIGITS TYPE STRING,END OF T_EKKO_STR. DATA: WA_X031L_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_X031L_STR-TABNAME sy-vline
WA_X031L_STR-POSITION sy-vline
WA_X031L_STR-FLAG1 sy-vline
WA_X031L_STR-FLAG2 sy-vline
WA_X031L_STR-FLAG3 sy-vline
WA_X031L_STR-FLAG4 sy-vline
WA_X031L_STR-DBTABPOS sy-vline
WA_X031L_STR-FIELDTYPE sy-vline
WA_X031L_STR-OFFSET sy-vline
WA_X031L_STR-DBLENGTH sy-vline
WA_X031L_STR-DBLENGTH2 sy-vline
WA_X031L_STR-EXLENGTH sy-vline
WA_X031L_STR-DECIMALS sy-vline
WA_X031L_STR-DEPTH sy-vline
WA_X031L_STR-FLDALIGN sy-vline
WA_X031L_STR-FIELDNAME sy-vline
WA_X031L_STR-ROLLNAME sy-vline
WA_X031L_STR-ABTYPE sy-vline
WA_X031L_STR-DTYP sy-vline
WA_X031L_STR-EXID sy-vline
WA_X031L_STR-REFTABLE sy-vline
WA_X031L_STR-REFFIELD sy-vline
WA_X031L_STR-PRECFIELD sy-vline
WA_X031L_STR-CONVEXIT sy-vline
WA_X031L_STR-MEMORYID sy-vline
WA_X031L_STR-CHECKTABLE sy-vline
WA_X031L_STR-DIGITS sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.