ABAP Select data from SAP table TNCH61 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 TNCH61 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 TNCH61. 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 TNCH61 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_TNCH61 TYPE STANDARD TABLE OF TNCH61,
      WA_TNCH61 TYPE TNCH61,
      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: <TNCH61> TYPE TNCH61.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TNCH61.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TNCH61
  INTO TABLE IT_TNCH61.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TNCH61
*  INTO TABLE @DATA(IT_TNCH612).
*--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_TNCH61 INDEX 1 INTO DATA(WA_TNCH612).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TNCH61 ASSIGNING <TNCH61>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<TNCH61>-MANDT = 1.
<TNCH61>-EINRI = 1.
<TNCH61>-ABRV = 1.
<TNCH61>-CLASS = 1.
<TNCH61>-TARID1 = 1.
ENDLOOP.

LOOP AT IT_TNCH61 INTO WA_TNCH61.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TNCH61-TALST1, sy-vline,
WA_TNCH61-ANCODE, sy-vline,
WA_TNCH61-ABTYP1, sy-vline,
WA_TNCH61-PROZENT, sy-vline,
WA_TNCH61-TARID2, sy-vline,
WA_TNCH61-TALST2, sy-vline.
ENDLOOP. *Add any further fields from structure WA_TNCH61 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_TNCH61 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_TNCH61 INTO WA_TNCH61. *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 ALPHA, internal->external for field EINRI CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_TNCH61-EINRI IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TNCH61-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ABRV CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_TNCH61-ABRV IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TNCH61-ABRV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CLASS CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_TNCH61-CLASS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TNCH61-CLASS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TARID1 CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_TNCH61-TARID1 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TNCH61-TARID1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TALST1 CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_TNCH61-TALST1 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TNCH61-TALST1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TARID2 CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_TNCH61-TARID2 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TNCH61-TARID2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TALST2 CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_TNCH61-TALST2 IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TNCH61-TALST2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TAGRU CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_TNCH61-TAGRU IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_TNCH61-TAGRU.
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_TNCH61_STR,
MANDT TYPE STRING,
EINRI TYPE STRING,
ABRV TYPE STRING,
CLASS TYPE STRING,
TARID1 TYPE STRING,
TALST1 TYPE STRING,
ANCODE TYPE STRING,
ABTYP1 TYPE STRING,
PROZENT TYPE STRING,
TARID2 TYPE STRING,
TALST2 TYPE STRING,
TAGRU TYPE STRING,
ABTYP2 TYPE STRING,
PERIODE TYPE STRING,
MINBTR TYPE STRING,
MAXBTR TYPE STRING,
WAERS TYPE STRING,
MINTXP TYPE STRING,
MAXTXP TYPE STRING,
MAXCASEBTR TYPE STRING,END OF T_EKKO_STR. DATA: WA_TNCH61_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_TNCH61_STR-MANDT sy-vline
WA_TNCH61_STR-EINRI sy-vline
WA_TNCH61_STR-ABRV sy-vline
WA_TNCH61_STR-CLASS sy-vline
WA_TNCH61_STR-TARID1 sy-vline
WA_TNCH61_STR-TALST1 sy-vline
WA_TNCH61_STR-ANCODE sy-vline
WA_TNCH61_STR-ABTYP1 sy-vline
WA_TNCH61_STR-PROZENT sy-vline
WA_TNCH61_STR-TARID2 sy-vline
WA_TNCH61_STR-TALST2 sy-vline
WA_TNCH61_STR-TAGRU sy-vline
WA_TNCH61_STR-ABTYP2 sy-vline
WA_TNCH61_STR-PERIODE sy-vline
WA_TNCH61_STR-MINBTR sy-vline
WA_TNCH61_STR-MAXBTR sy-vline
WA_TNCH61_STR-WAERS sy-vline
WA_TNCH61_STR-MINTXP sy-vline
WA_TNCH61_STR-MAXTXP sy-vline
WA_TNCH61_STR-MAXCASEBTR sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.