Source
Java requirements for the JDBC Driver
The Snowflake JDBC driver requires Java LTS (Long - Term Support) versions 1.8 or higher. If the minimum required version of Java is not installed on the client machines where the JDBC driver is installed, you must install either Oracle Java…
Analyzing queries and troubleshooting with Snowpark Java
To inspect the evaluation plan of a DataFrame, call the explain method of the DataFrame. This prints the SQL statements used to evaluate the DataFrame. If there is only one SQL statement, the method also prints the logical plan for the…
Reading files with a Java stored procedure
You can read the contents of a file with handler code. The file must be on a Snowflake stage that’s available to your handler. For example, you might want to read a file to process unstructured data in the handler.
Python and Java support for serverless tasks
Serverless tasks can invoke the following object types and functions: user - defined functions (UDFs) and stored procedures written in Python, Java, and Scala. You can use Python or Java in your tasks in a few different ways.
Exception 'java.net.UnknownHostException' when connecting to scoped stage file URLs within Snowpark Java functions
CAUSE: Snowpark (Java, Scala, Python, etc.) functions execute in secure sandboxes over the Snowflake virtual warehouses and are not permitted to make any network related syscalls, including DNS resolution.
JDBC driver with -Dhttp.nonProxyHosts=* set throws java.lang.StringIndexOutOfBoundsException: begin 1, end 0, length 1
ISSUE: When using the JDBC driver's diagnostics feature (i.e., ENABLE_DIAGNOSTICS=TRUE)1, if the -Dhttp.nonProxyHosts=* JVM argument is set, the following exception can occur on some Java versions: java.lang.RuntimeException: java.lang.St…
JDBC driver throws javax.naming.CommunicationException: DNS error (Root exception: java.net.SocketTimeoutException)
ISSUE: The following exception occurs on macOS (aarch64) when using the JDBC driver’s diagnostic feature (i.e., ENABLE_DIAGNOSTICS=TRUE)…
Introduction to Java UDFs
When a user calls a UDF, the user passes UDF’s name and arguments to Snowflake. Snowflake calls the associated handler code (with arguments, if any) to execute the UDF’s logic. The handler method then returns the output to Snowflake,…
JDBC Driver Compatibility Issue With JDK 16 and Later: Exception creating result java.lang.ExceptionInInitializerError at net.snowflake.client.jdbc.internal.apache.arrow.memory.UnsafeAllocationManager
CAUSE: The failure is directly caused by one of the JDBC driver's dependencies, Apache Arrow, when attempting to use reflection in order to access a private member of the java.nio.Buffer class. This was allowed by Java previously, but not…