ABAP Select data from SAP table SZN_NUMHOT 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 SZN_NUMHOT 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 SZN_NUMHOT. 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 SZN_NUMHOT 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_SZN_NUMHOT TYPE STANDARD TABLE OF SZN_NUMHOT,
      WA_SZN_NUMHOT TYPE SZN_NUMHOT,
      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: <SZN_NUMHOT> TYPE SZN_NUMHOT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SZN_NUMHOT
*  INTO TABLE @DATA(IT_SZN_NUMHOT2).
*--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_SZN_NUMHOT INDEX 1 INTO DATA(WA_SZN_NUMHOT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SZN_NUMHOT ASSIGNING <SZN_NUMHOT>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<SZN_NUMHOT>-CLIENT = 1.
<SZN_NUMHOT>-PERCENT = 1.
<SZN_NUMHOT>-OBJECT = 1.
<SZN_NUMHOT>-SUBOBJECT = 1.
<SZN_NUMHOT>-NRRANGENR = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SZN_NUMHOT-FROMNUMBER, sy-vline,
WA_SZN_NUMHOT-TONUMBER, sy-vline,
WA_SZN_NUMHOT-NRLEVEL, sy-vline,
WA_SZN_NUMHOT-TOYEAR, sy-vline,
WA_SZN_NUMHOT-ROLL, sy-vline,
ENDLOOP. *Add any further fields from structure WA_SZN_NUMHOT 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_SZN_NUMHOT 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_SZN_NUMHOT INTO WA_SZN_NUMHOT. *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 GJAHR, internal->external for field TOYEAR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_SZN_NUMHOT-TOYEAR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_SZN_NUMHOT-TOYEAR.
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_SZN_NUMHOT_STR,
CLIENT TYPE STRING,
PERCENT TYPE STRING,
OBJECT TYPE STRING,
SUBOBJECT TYPE STRING,
NRRANGENR TYPE STRING,
FROMNUMBER TYPE STRING,
TONUMBER TYPE STRING,
NRLEVEL TYPE STRING,
TOYEAR TYPE STRING,
ROLL TYPE STRING,END OF T_EKKO_STR. DATA: WA_SZN_NUMHOT_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_SZN_NUMHOT_STR-CLIENT sy-vline
WA_SZN_NUMHOT_STR-PERCENT sy-vline
WA_SZN_NUMHOT_STR-OBJECT sy-vline
WA_SZN_NUMHOT_STR-SUBOBJECT sy-vline
WA_SZN_NUMHOT_STR-NRRANGENR sy-vline
WA_SZN_NUMHOT_STR-FROMNUMBER sy-vline
WA_SZN_NUMHOT_STR-TONUMBER sy-vline
WA_SZN_NUMHOT_STR-NRLEVEL sy-vline
WA_SZN_NUMHOT_STR-TOYEAR sy-vline
WA_SZN_NUMHOT_STR-ROLL sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.