ABAP Select data from SAP table FLQ_CHAINLINK 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 FLQ_CHAINLINK 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 FLQ_CHAINLINK. 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 FLQ_CHAINLINK 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_FLQ_CHAINLINK TYPE STANDARD TABLE OF FLQ_CHAINLINK,
WA_FLQ_CHAINLINK TYPE FLQ_CHAINLINK,
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: <FLQ_CHAINLINK> TYPE FLQ_CHAINLINK.
*Process all fields in table header/work area as string values
PERFORM process_as_string_field_values CHANGING wa_FLQ_CHAINLINK.
SELECT *
*restrict ABAP select to first 10 rows
UP TO 10 ROWS
FROM FLQ_CHAINLINK
INTO TABLE IT_FLQ_CHAINLINK.
*Select data and declare internal table using in-line method @DATA
*SELECT *
* FROM FLQ_CHAINLINK
* INTO TABLE @DATA(IT_FLQ_CHAINLINK2).
*--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_FLQ_CHAINLINK INDEX 1 INTO DATA(WA_FLQ_CHAINLINK2).
*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FLQ_CHAINLINK ASSIGNING <FLQ_CHAINLINK>.
*To update a field value using a field symbol simply change the value via the field symbol pointer<FLQ_CHAINLINK>-BUKRS = 1.
<FLQ_CHAINLINK>-BELNR = 1.
<FLQ_CHAINLINK>-GJAHR = 1.
<FLQ_CHAINLINK>-BUZEI = 1.
<FLQ_CHAINLINK>-KOART = 1.
ENDLOOP. LOOP AT IT_FLQ_CHAINLINK INTO WA_FLQ_CHAINLINK. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_FLQ_CHAINLINK-SHKZG, sy-vline,
WA_FLQ_CHAINLINK-HKONT, sy-vline,
WA_FLQ_CHAINLINK-MWART, sy-vline,
WA_FLQ_CHAINLINK-MWSKZ, sy-vline,
WA_FLQ_CHAINLINK-REBZT, sy-vline,
WA_FLQ_CHAINLINK-UMSKS, sy-vline.
ENDLOOP. *Add any further fields from structure WA_FLQ_CHAINLINK 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_FLQ_CHAINLINK 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_FLQ_CHAINLINK INTO WA_FLQ_CHAINLINK. *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 BELNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_FLQ_CHAINLINK-BELNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_FLQ_CHAINLINK-BELNR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit GJAHR, internal->external for field GJAHR CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT' EXPORTING input = WA_FLQ_CHAINLINK-GJAHR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_FLQ_CHAINLINK-GJAHR.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field HKONT CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_FLQ_CHAINLINK-HKONT IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_FLQ_CHAINLINK-HKONT.
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_FLQ_CHAINLINK_STR,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
KOART TYPE STRING,
SHKZG TYPE STRING,
HKONT TYPE STRING,
MWART TYPE STRING,
MWSKZ TYPE STRING,
REBZT TYPE STRING,
UMSKS TYPE STRING,
KTOSL TYPE STRING,
AMOUNT TYPE STRING,
GSBER TYPE STRING,
FKONT TYPE STRING,
CLEARING TYPE STRING,END OF T_EKKO_STR. DATA: WA_FLQ_CHAINLINK_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_FLQ_CHAINLINK_STR-BUKRS sy-vline
WA_FLQ_CHAINLINK_STR-BELNR sy-vline
WA_FLQ_CHAINLINK_STR-GJAHR sy-vline
WA_FLQ_CHAINLINK_STR-BUZEI sy-vline
WA_FLQ_CHAINLINK_STR-KOART sy-vline
WA_FLQ_CHAINLINK_STR-SHKZG sy-vline
WA_FLQ_CHAINLINK_STR-HKONT sy-vline
WA_FLQ_CHAINLINK_STR-MWART sy-vline
WA_FLQ_CHAINLINK_STR-MWSKZ sy-vline
WA_FLQ_CHAINLINK_STR-REBZT sy-vline
WA_FLQ_CHAINLINK_STR-UMSKS sy-vline
WA_FLQ_CHAINLINK_STR-KTOSL sy-vline
WA_FLQ_CHAINLINK_STR-AMOUNT sy-vline
WA_FLQ_CHAINLINK_STR-GSBER sy-vline
WA_FLQ_CHAINLINK_STR-FKONT sy-vline
WA_FLQ_CHAINLINK_STR-CLEARING sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.
