SSC-EWI-OR0128

Boolean cursor attribute is not supported.

Some parts in the output code are omitted for clarity reasons.

Severity

Low

Description

This message is used to indicate that a boolean cursor attribute is not supported in SnowScript or that there is no transformation that emulates its functionality in SnowScript. The following table shows the boolean cursor attributes that can be emulated:

Boolean Cursor Attribute	Status
%FOUND	Can be emulated
%NOTFOUND	Can be emulated
%ISOPEN	Not Supported

Example Code

Input Code:

IN -> Oracle_01.sql

CREATE OR REPLACE PROCEDURE cursor_attributes_proc
IS
    is_open_attr BOOLEAN;
    found_attr BOOLEAN;
    my_record table1%ROWTYPE;
    CURSOR my_cursor IS SELECT * FROM table1;
BEGIN
    OPEN my_cursor;
    LOOP
        FETCH my_cursor INTO my_record;
        EXIT WHEN my_cursor%NOTFOUND;
        is_open_attr := my_cursor%ISOPEN;
        found_attr := my_cursor%FOUND;
    END LOOP;
    CLOSE my_cursor;
END;

Output Code:

OUT -> Oracle_01.sql

CREATE OR REPLACE PROCEDURE cursor_attributes_proc ()
RETURNS VARCHAR
LANGUAGE SQL
COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},"attributes":{"component":"oracle"}}'
EXECUTE AS CALLER
AS
$$
    DECLARE
        is_open_attr BOOLEAN;
        found_attr BOOLEAN;
        my_record OBJECT !!!RESOLVE EWI!!! /*** SSC-EWI-0036 - ROWTYPE DATA TYPE CONVERTED TO OBJECT ***/!!! := OBJECT_CONSTRUCT();
        my_cursor CURSOR
        FOR
            SELECT
                OBJECT_CONSTRUCT( *) sc_cursor_record FROM
                table1;
    BEGIN
        OPEN my_cursor;
        LOOP
            --** SSC-PRF-0003 - FETCH INSIDE A LOOP IS CONSIDERED A COMPLEX PATTERN, THIS COULD DEGRADE SNOWFLAKE PERFORMANCE. **
            FETCH my_cursor INTO
                :my_record;
            IF (my_record IS NULL) THEN
                EXIT;
            END IF;
            is_open_attr := null /*my_cursor%ISOPEN*/!!!RESOLVE EWI!!! /*** SSC-EWI-OR0128 - BOOLEAN CURSOR ATTRIBUTE %ISOPEN IS NOT SUPPORTED IN SNOWFLAKE ***/!!!;
            found_attr := my_record IS NOT NULL;
        END LOOP;
        CLOSE my_cursor;
    END;
$$;

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