MSCEWI4038

Snowflake Scripting cursor rows are not modifiable.

This is a deprecated version of the SnowConvert documentation, please visit the official site HERE.

Severity

Medium

Description

This EWI is added when Cursors are open to modification in the input code. Snowflake Scripting does not allow modifying cursor rows.

Example Code:

Input Code:

CREATE OR ALTER PROCEDURE modifiablecursorTest
AS
BEGIN
    -- Should be marked with MSCEWI4038
    DECLARE CursorVar CURSOR
	FOR  
	SELECT FirstName
	FROM vEmployee;
    DECLARE CursorVar2 INSENSITIVE CURSOR
	FOR  
	SELECT FirstName
	FROM vEmployee;
    DECLARE CursorVar3 CURSOR KEYSET SCROLL_LOCKS
	FOR  
	SELECT FirstName
	FROM vEmployee;
    DECLARE CursorVar4 CURSOR DYNAMIC OPTIMISTIC
	FOR  
	SELECT FirstName
	FROM vEmployee;
    DECLARE CursorVar6 CURSOR STATIC
	FOR  
	SELECT FirstName
	FROM vEmployee;
    DECLARE CursorVar7 CURSOR READ_ONLY
	FOR  
	SELECT FirstName
	FROM vEmployee;
    -- Shouid not be marked
    DECLARE CursorVar5 CURSOR STATIC READ_ONLY
	FOR  
	SELECT FirstName
	FROM vEmployee;
    RETURN 'DONE';
END;

Output Code:

CREATE OR REPLACE PROCEDURE PUBLIC.modifiablecursorTest ()
RETURNS VARCHAR
LANGUAGE SQL
EXECUTE AS CALLER
AS
$$
    DECLARE
    -- Should be marked with MSCEWI4038
    /*** MSC-ERROR - MSCEWI4038 - SNOWFLAKE SCRIPTING CURSOR ROWS ARE NOT MODIFIABLE ***/
    CursorVar CURSOR
    FOR
        SELECT
            FirstName
        FROM
            PUBLIC.vEmployee;
    /*** MSC-ERROR - MSCEWI4038 - SNOWFLAKE SCRIPTING CURSOR ROWS ARE NOT MODIFIABLE ***/
    CursorVar2 CURSOR
    FOR
        SELECT
            FirstName
        FROM
            PUBLIC.vEmployee;
    /*** MSC-ERROR - MSCEWI4038 - SNOWFLAKE SCRIPTING CURSOR ROWS ARE NOT MODIFIABLE ***/
    CursorVar3 CURSOR
    FOR
        SELECT
            FirstName
        FROM
            PUBLIC.vEmployee;
    /*** MSC-ERROR - MSCEWI4038 - SNOWFLAKE SCRIPTING CURSOR ROWS ARE NOT MODIFIABLE ***/
    CursorVar4 CURSOR
    FOR
        SELECT
            FirstName
        FROM
            PUBLIC.vEmployee;
    /*** MSC-ERROR - MSCEWI4038 - SNOWFLAKE SCRIPTING CURSOR ROWS ARE NOT MODIFIABLE ***/
    CursorVar6 CURSOR
    FOR
        SELECT
            FirstName
        FROM
            PUBLIC.vEmployee;
    /*** MSC-ERROR - MSCEWI4038 - SNOWFLAKE SCRIPTING CURSOR ROWS ARE NOT MODIFIABLE ***/
    CursorVar7 CURSOR
    FOR
        SELECT
            FirstName
        FROM
            PUBLIC.vEmployee;
    -- Shouid not be marked
    CursorVar5 CURSOR
    FOR
        SELECT
            FirstName
        FROM
            PUBLIC.vEmployee;
    BEGIN
        RETURN 'DONE';
    END;
$$;

Recommendations

• If you need more support, you can email us at [e-mail]