Cast from Number Datatypes to Varchar Datatype

Translation specification for the transformation of cast Varchar Datatype Snowflake.

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Teradata when casts to varchar uses default formats for each number datatype, so Snowconvert adds formats to keep the equivalence among platforms.

Sample Source Patterns

BYTEINT

Teradata

Query

IN -> Teradata_01.sql

SELECT '"'||cast(cast(12 as BYTEINT) as varchar(10))||'"';

Result

(('"'||12)||'"')|
----------------+
"12"            |

Snowflake

Query

OUT -> Teradata_01.sql

SELECT
'"'|| LEFT(TO_VARCHAR(cast(12 as BYTEINT), 'TM'), 10) ||'"';

Result

"'""'|| LEFT(TO_VARCHAR(CAST(12 AS BYTEINT), 'TM'), 10) ||'""'"
---------------------------------------------------------------
"12"            

SMALLINT

Teradata

Query

IN -> Teradata_02.sql

SELECT '"'||cast(cast(123 as SMALLINT) as varchar(10))||'"';

Result

(('"'||123)||'"')|
-----------------+
"123"            |

Snowflake

Query

OUT -> Teradata_02.sql

SELECT
'"'|| LEFT(TO_VARCHAR(CAST(123 AS SMALLINT), 'TM'), 10) ||'"';

Result

"'""'|| LEFT(TO_VARCHAR(CAST(123 AS SMALLINT), 'TM'), 10) ||'""'"
-----------------------------------------------------------------
"123"

INTEGER

Teradata

Query

IN -> Teradata_03.sql

SELECT '"'||cast(cast(12345 as INTEGER) as varchar(10))||'"';

Result

(('"'||12345)||'"')|
-------------------+
"12345"            |

Snowflake

Query

OUT -> Teradata_03.sql

SELECT
'"'|| LEFT(TO_VARCHAR(CAST(12345 AS INTEGER), 'TM'), 10) ||'"';

Result

"'""'|| LEFT(TO_VARCHAR(CAST(12345 AS INTEGER), 'TM'), 10) ||'""'"
------------------------------------------------------------------
"12345"

BIGINT

Teradata

Query

IN -> Teradata_04.sql

SELECT '"'||cast(cast(12345 as BIGINT) as varchar(10))||'"';

Result

(('"'||12345)||'"')|
-------------------+
"12345"            |

Snowflake

Query

OUT -> Teradata_04.sql

SELECT
       '"'|| LEFT(TO_VARCHAR(CAST(12345 AS BIGINT), 'TM'), 10) ||'"';

Result

"'""'|| LEFT(TO_VARCHAR(CAST(12345 AS BIGINT), 'TM'), 10) ||'""'"
-----------------------------------------------------------------
"12345"

DECIMAL[(n[,m])] or NUMERIC[(n[,m])]

Teradata

Query

IN -> Teradata_05.sql

SELECT '"'||cast(cast(12345 as DECIMAL) as varchar(10))||'"',
       '"'||cast(cast(12345 as DECIMAL(12, 2)) as varchar(10))||'"';

Result

(('"'||12345)||'"')|(('"'||12345)||'"')|
-------------------+-------------------+
"12345."           |"12345.00"         |

Snowflake

Query

OUT -> Teradata_05.sql

SELECT
'"'|| LEFT(TO_VARCHAR(CAST(12345 AS DECIMAL), 'TM.'), 10) ||'"',
'"'|| LEFT(TO_VARCHAR(CAST(12345 AS DECIMAL(12, 2)), 'TM'), 10) ||'"';

Result

'"'|| LEFT(TO_VARCHAR(CAST(12345 AS DECIMAL), 'TM.'), 10) ||'"'	'"'|| LEFT(TO_VARCHAR(CAST(12345 AS DECIMAL(12, 2)), 'TM'), 10) ||'"'
"12345."	"12345.00"    

Known Issues

• Teradata treats the numbers between 0 and 1 differently than Snowflake. For those values, Teradata does not add the zero before the dot; meanwhile, Snowflake does.

Teradata

Query

IN -> Teradata_06.sql

SELECT '"'||cast(cast(-0.1 as DECIMAL(12, 2)) as varchar(10))||'"' AS column1,
       '"'||cast(cast(0.1 as DECIMAL(12, 2)) as varchar(10))||'"' AS column2;

Result

COLUMN1          |COLUMN2
-----------------+--------------+
"-.10"           |".10"         |

Snowflake

Query

OUT -> Teradata_06.sql

SELECT
'"'|| LEFT(TO_VARCHAR(CAST(-0.1 AS DECIMAL(12, 2)), 'TM'), 10) ||'"' AS column1,
'"'|| LEFT(TO_VARCHAR(CAST(0.1 AS DECIMAL(12, 2)), 'TM'), 10) ||'"' AS column2;

Result

COLUMN1           |COLUMN2
------------------+---------------+
"-0.10"           |"0.10"         |

Related EWIs

No related EWIs.