SSC-EWI-TS0044

FOR XML clause is not supported in Snowflake.

Severity

Critical

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

Description

This EWI is added for the FOR XML clause which is not supported in Snowflake SQL

Code Example

Input Code:

IN -> SqlServer_01.sql

SELECT TOP 1 LastName
FROM AdventureWorks2019.Person.Person
FOR XML AUTO;

Output Code:

OUT -> SqlServer_01.sql

SELECT TOP 1
LastName
FROM
AdventureWorks2019.Person.Person
!!!RESOLVE EWI!!! /*** SSC-EWI-TS0044 - FOR XML CLAUSE IS NOT SUPPORTED IN SNOWFLAKE ***/!!!
FOR XML AUTO;

Recommendations

• Consider using UDFs to emulate the behavior of the source code. The following code provides suggestions of UDFs that can be used to achieve recreating the original behavior:

SQL Server

Query

IN -> SqlServer_02.sql

CREATE TABLE TEMPTABLE (Ref INT, Des NVARCHAR(100), Qty INT)

INSERT INTO tempTable VALUES (100001, 'Normal', 1), (100002, 'Foobar', 1), (100003, 'Hello World', 2)

GO

-- FOR XML
SELECT *
FROM TempTable
FOR XML AUTO

GO
 
-- FOR XML RAW
SELECT *
FROM TempTable
FOR XML RAW

Result

-- FOR XML
<TempTable Ref="100001" Des="Normal" Qty="1"/><TempTable Ref="100002" Des="Foobar" Qty="1"/><TempTable Ref="100003" Des="Hello World" Qty="2"/>

-- FOR XML RAW
<row Ref="100001" Des="Normal" Qty="1"/><row Ref="100002" Des="Foobar" Qty="1"/><row Ref="100003" Des="Hello World" Qty="2"/>

Snowflake

Query

OUT -> SqlServer_02.sql

CREATE OR REPLACE TABLE TEMPTABLE (
Ref INT,
Des VARCHAR(100),
Qty INT
)
COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},{"attributes":{"component":"transact"}}'
;

INSERT INTO tempTable VALUES (100001, 'Normal', 1), (100002, 'Foobar', 1), (100003, 'Hello World', 2);

-- FOR XML
SELECT
*
FROM
TempTable
!!!RESOLVE EWI!!! /*** SSC-EWI-TS0044 - FOR XML CLAUSE IS NOT SUPPORTED IN SNOWFLAKE ***/!!!
FOR XML AUTO;

-- FOR XML RAW
SELECT
*
FROM
TempTable
!!!RESOLVE EWI!!! /*** SSC-EWI-TS0044 - FOR XML CLAUSE IS NOT SUPPORTED IN SNOWFLAKE ***/!!!
FOR XML RAW;

Result

-- FOR XML
<TempTable DES="Normal" QTY="1" REF="100001"  /><TempTable DES="Foobar" QTY="1" REF="100002"  /><TempTable DES="Hello World" QTY="2" REF="100003"  />

-- FOR XML RAW
<row DES="Normal" QTY="1" REF="100001"  /><row DES="Foobar" QTY="1" REF="100002"  /><row DES="Hello World" QTY="2" REF="100003"  />

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