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Showing content from https://github.com/snowflakedb/snowflake-jdbc below:

GitHub - snowflakedb/snowflake-jdbc: Snowflake JDBC Driver

Snowflake provides a JDBC type 4 driver that supports core functionality, allowing Java program to connect to Snowflake.

The Snowflake JDBC driver requires Java 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 or OpenJDK.

Add following dependency for fat-jar

<dependency>
  <groupId>net.snowflake</groupId>
  <artifactId>snowflake-jdbc</artifactId>
  <version>{version}</version>
</dependency>

or for FIPS compliant fat-jar

<dependency>
  <groupId>net.snowflake</groupId>
  <artifactId>snowflake-jdbc-fips</artifactId>
  <version>{version}</version>
</dependency>

or for thin-jar

<dependency>
  <groupId>net.snowflake</groupId>
  <artifactId>snowflake-jdbc-thin</artifactId>
  <version>{version}</version>
</dependency>

1. Checkout source code from Github by running:

git clone https://github.com/snowflakedb/snowflake-jdbc.git

1. Build the fat-jar and install it in local maven repository by running:

./mvnw clean verify
./mvnw org.apache.maven.plugins:maven-install-plugin:3.1.1:install-file -Dfile=target/snowflake-jdbc.jar -DpomFile=./public_pom.xml

1. Build the FIPS compliant fat-jar and install it in local maven repository by running:

cd FIPS
../mvnw clean verify
../mvnw org.apache.maven.plugins:maven-install-plugin:3.1.1:install-file -Dfile=target/snowflake-jdbc-fips.jar -DpomFile=./public_pom.xml
cd -

1. Build the thin-jar and install it in local maven repository by running:

./mvnw clean verify -Dnot-self-contained-jar -Dthin-jar
./mvnw org.apache.maven.plugins:maven-install-plugin:3.1.1:install-file -Dfile=target/snowflake-jdbc-thin.jar -DpomFile=./thin_public_pom.xml -Dnot-self-contained-jar -Dthin-jar

• thin-jar enables thin jar profile
• not-self-contained-jar turns off fat jar profile (enabled by default)

1. Note that the built dependencies are installed with version 1.0-SNAPSHOT

Class.forName("net.snowflake.client.jdbc.SnowflakeDriver")

javax.sql.DataSource interface is implemented by class

net.snowflake.client.jdbc.SnowflakeBasicDataSource

US(West) Region:

jdbc:snowflake://<account>.snowflakecomputing.com/?<connection_params>

EU(Frankfurt) Region:

jdbc:snowflake://<account>.eu-central-1.snowflakecomputing.com/?<connection_params>

For detailed documentation, please refer to https://docs.snowflake.net/manuals/user-guide/jdbc.html

Run the maven command to check the coding style.

mvn -P check-style validate

Follow the instruction if any error occurs or run this command to fix the formats.

mvn com.spotify.fmt:fmt-maven-plugin:format

You may import the coding style from IntelliJ so that the coding style can be applied on IDE:

• In the File -> Settings/Plugins, and install google-java-format plugin.

• Enable google-java-format for the JDBC project.

• In the source code window, select Code -> Reformat to apply the coding style.

• Additionally configure IDE in File -> Editor -> Code Style -> Java to - not use wildcard imports (tab Imports):

  • Use single class import
  • Class count to use import with '*' to 1000
  • Names count to use static import with '*' to 1000

  • always use braces in if/while/for/do..while in (tab Wrapping and Braces)

Set the environment variables to specify the target database.

export SNOWFLAKE_TEST_HOST=<your_host>
export SNOWFLAKE_TEST_ACCOUNT=<your_account>
export SNOWFLAKE_TEST_USER=<your_user>
export SNOWFLAKE_TEST_PASSWORD=<your_password>
export SNOWFLAKE_TEST_DATABASE=<your_database>
export SNOWFLAKE_TEST_SCHEMA=<your_schema>
export SNOWFLAKE_TEST_WAREHOUSE=<your_warehouse>
export SNOWFLAKE_TEST_ROLE=<your_role>

Run the maven verify goal.

mvn -DjenkinsIT -DtestCategory=net.snowflake.client.category.<category> verify

where category is the class name under the package net.snowflake.client.category.

Run script passing desired version:

./prepareNewVersion.sh 3.100.42

Add SNAPSHOT suffix when necessary:

./prepareNewVersion.sh 3.100.42-SNAPSHOT

The test cases are fallen into a couple of criteria:

• The unit test class names end with Test. They run part of the JDBC build jobs.
• The integration test class names end with IT. They run part of the verify maven goal along with the test category specified by the parameter testCategory having net.snowflake.client.category classes.
• The manual test class names end with Manual. They don't run in the CI but you can run them manually.

Aside from the general test criteria, the test case class names ending with LatestIT run only with the latest JDBC driver. The main motivation behind is to skip those tests for the old JDBC driver. See ./TestOnly directory for further information.

Feel free to file an issue or submit a PR here for general cases. For official support, contact Snowflake support at: https://community.snowflake.com/s/article/How-To-Submit-a-Support-Case-in-Snowflake-Lodge

This driver support GCP regional endpoints starting from version 3.21.0. Please ensure that any workloads using through this driver below the version 3.21.0 do not require support for regional endpoints on GCP. If you have questions about this, please contact Snowflake Support.

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