WHILE

Translation reference to convert Teradata WHILE statement to Snowflake Scripting

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

Description

Teradata's WHILE statement is translated to Snowflake ScriptingWHILE syntax.

For more information on Teradata While, check here.

[label_name:] WHILE conditional_expression DO
    { sql_statement }
END WHILE [label_name];

Sample Source Patterns

Teradata

While

IN -> Teradata_01.sql

REPLACE PROCEDURE whileProcedure(OUT resultCounter INTEGER)
BEGIN
    DECLARE counter INTEGER DEFAULT 0;
    customeLabel: WHILE counter < 10 DO
        SET counter = counter + 1;
    END WHILE customeLabel;
    SET resultCounter = counter;
END;

CALL whileProcedure(:?);

Result

|resultCounter|
|-------------|
|10           |

Snowflake Scripting

While

OUT -> Teradata_01.sql

CREATE OR REPLACE PROCEDURE whileProcedure (
--                                            OUT
                                                RESULTCOUNTER FLOAT)
RETURNS VARIANT
LANGUAGE SQL
COMMENT = '{"origin":"sf_sc","name":"snowconvert","version":{"major":1, "minor":0},{"attributes":{"component":"teradata"}}'
EXECUTE AS CALLER
AS
$$
    BEGIN
        LET counter INTEGER DEFAULT 0;
        WHILE ( counter < 10) LOOP
            counter := counter + 1;
        END LOOP CUSTOMELABEL;
        resultCounter := counter;
        RETURN resultCounter;
    END;
$$;

CALL whileProcedure(:?);

Result

|WHILEPROCEDURE|
|--------------|
|10            |