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How to Update the dbt_project.yml File?
In order to set up ClickHouse with dbt Developer Hub, the first step involves updating the dbt_project.yml file. This file is used to specify the first model that will be used in the project. It is a crucial step in the setup process as it lays the foundation for the rest of the project.
# dbt_project.yml
name: my_project
version: '1.0'
config-version: 2
models:
my_project:
enabled: true
materialized: table
The above code is an example of how to update the dbt_project.yml file. The 'name' field specifies the name of the project, 'version' indicates the version of the project, 'config-version' is the configuration version, and under 'models', the first model is specified and enabled.
- name: Specifies the name of the project.
- version: Indicates the version of the project.
- config-version: Specifies the configuration version.
- models: Under this, the first model is specified and enabled.
How to Set the Profile to clickhouse_imdb?
The next step in setting up ClickHouse with dbt Developer Hub is setting the profile to clickhouse_imdb. This profile will be used to connect to the ClickHouse instance.
# ~/.dbt/profiles.yml
clickhouse_imdb:
target: dev
outputs:
dev:
type: clickhouse
threads: 1
database: imdb
schema: public
host: localhost
port: 8123
user: default
password: ""
The above code is an example of how to set the profile to clickhouse_imdb. This profile contains the connection details for the ClickHouse instance, including the type, threads, database, schema, host, port, user, and password.
- type: Specifies the type of the database.
- threads: Indicates the number of threads to be used.
- database: Specifies the name of the database.
- schema: Specifies the schema to be used.
- host: Specifies the host of the database.
- port: Specifies the port to connect to the database.
- user: Specifies the user to connect to the database.
- password: Specifies the password to connect to the database.
How to Add Connection Details to the ClickHouse Instance?
After setting the profile, the next step is to add the connection details for the ClickHouse instance to ~/.dbt/profiles.yml. This file contains the configuration details for the database connection.
# ~/.dbt/profiles.yml
clickhouse_imdb:
target: dev
outputs:
dev:
type: clickhouse
threads: 1
database: imdb
schema: public
host: localhost
port: 8123
user: default
password: ""
The above code is an example of how to add the connection details for the ClickHouse instance. The 'type' field specifies the type of the database, 'threads' indicates the number of threads to be used, 'database' specifies the name of the database, 'schema' specifies the schema to be used, 'host' specifies the host of the database, 'port' specifies the port to connect to the database, 'user' specifies the user to connect to the database, and 'password' specifies the password to connect to the database.
- type: Specifies the type of the database.
- threads: Indicates the number of threads to be used.
- database: Specifies the name of the database.
- schema: Specifies the schema to be used.
- host: Specifies the host of the database.
- port: Specifies the port to connect to the database.
- user: Specifies the user to connect to the database.
- password: Specifies the password to connect to the database.
How to Modify the User and Password?
Once the connection details have been added, the next step is to modify the user and password. This is done to ensure that the correct user and password are being used to connect to the ClickHouse instance.
# ~/.dbt/profiles.yml
clickhouse_imdb:
target: dev
outputs:
dev:
type: clickhouse
threads: 1
database: imdb
schema: public
host: localhost
port: 8123
user: my_user
password: "my_password"
The above code is an example of how to modify the user and password. The 'user' field is updated with the new user and the 'password' field is updated with the new password.
- user: Specifies the new user to connect to the database.
- password: Specifies the new password to connect to the database.
How to Execute the dbt Debug Command?
The final step in setting up ClickHouse with dbt Developer Hub is to execute the dbt debug command from the IMDB directory. This command is used to confirm that dbt can connect to ClickHouse.
# Terminal
$ cd IMDB
$ dbt debug
The above code is an example of how to execute the dbt debug command. The 'cd IMDB' command is used to navigate to the IMDB directory and the 'dbt debug' command is used to run the debug command.
- cd IMDB: Navigates to the IMDB directory.
- dbt debug: Runs the debug command to confirm that dbt can connect to ClickHouse.
