docs-v2/content/flux/v0/write-data/sql/cockroachdb.md

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Write to CockroachDB	CockroachDB	Use [`sql.to()`](/flux/v0/stdlib/sql/to/) with the `postgres` driver to write data to CockroachDB.	flux_v0 name parent identifier CockroachDB write-to-sql write-cockroachdb	101	/flux/v0/stdlib/sql/to/	```js import "sql" data |> sql.to( driverName: "postgres", dataSourceName: "postgresql://username:password@localhost:26257/cluster_name.defaultdb?sslmode=verify-full&sslrootcert=certs_dir/cc-ca.crt", table: "example_table", ) ```

To write data to CockroachDB with Flux:

1. Import the sql package.

2. Pipe-forward data into sql.to() and provide the following parameters:

   • driverName: postgres
   • dataSourceName: See data source name
   • table: Table to write to
   • batchSize: Number of parameters or columns that can be queued within each call to Exec (default is 10000)

import "sql"

data
    |> sql.to(
        driverName: "postgres",
        dataSourceName:
            "postgresql://username:password@localhost:26257/cluster_name.defaultdb?sslmode=verify-full&sslrootcert=certs_dir/cc-ca.crt",
        table: "example_table",
    )

---

CockroachDB data source name

The postgres driver uses the following DSN syntax (also known as a connection string):

postgres://username:password@localhost:26257/cluster_name.defaultdb?sslmode=verify-full&sslrootcert=certs_dir/cc-ca.crt

{{% note %}} The postgres driver uses the Go pq implementation to interact with CockroachDB. {{% /note %}}

Flux to CockroachDB data type conversion

sql.to() converts Flux data types to PostgreSQL and CockroachDB data types.

Flux data type	CockroachDB data type
float	FLOAT
int	BIGINT
uint	BIGINT
string	TEXT
bool	BOOL
time	TIMESTAMP