Source
Data type conversion
Users can explicitly convert a value from one data type to another. This is called explicit casting. In some situations, Snowflake converts a value to another data type automatically. This is called implicit casting or coercion.
Conversion functions
This family of functions can be used to convert an expression of any Snowflake data type to another data type.
Structured data types
You use structured types when accessing data from a structured type column in a table. You can cast a semi - structured ARRAY, OBJECT, or VARIANT value to a corresponding structured type (for example, an ARRAY value to an ARRAY value of…
Transforming data during a load
Snowflake supports transforming data while loading it into a table using the COPY INTO <table> command, dramatically simplifying your ETL pipeline for basic transformations. This feature helps you avoid the use of temporary tables to store…
CAST , ::
Converts a value of one data type into another data type. The semantics of CAST are the same as the semantics of the corresponding TO_ datatype conversion functions. If the cast is not possible, an error is raised.
SQL statement execution error - Failed to cast variant value to TIMESTAMP_TZ
Snowflake will attempt to implicitly cast the VARIANT type to the correct timestamp data type. However, depending on the format defined in the parameter TIMESTAMP_INPUT_FORMAT, the format is not recognized as a valid timestamp and will…
Working with variables
…expressionAssigns the value of expression to the variable. If both type and expression are specified, the expression must evaluate to a data type that matches. If the types do not match, you can cast the value to the specified type.
TRY_CAST
A special version of CAST , :: that is available for a subset of data type conversions. It performs the same operation (i.e. converts a value of one data type into another data type), but returns a NULL value instead of raising an error…
SnowConvert AI - Vertica - Operators
…after setting EnableStrictTimeCasts ( Vertica SQL Language Reference Coercion operator ) To replicate this functionality SnowConvert AI translates this operator to the TRY_CAST function.
Carefully Choose when to use FLOAT data type
ISSUE: Snowflake uses the IEEE - 754 floating point representation for FLOAT datatype and the values can differ in storage as per the IEEE standard. FLOAT has very specific use case and one should be careful when using it as floats are an…