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Jdbc.md

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JDBC

JDBC source connector

Description

Read external data source data through JDBC.

Key features

supports query SQL and can achieve projection effect.

Options

name type required default value
url String Yes -
driver String Yes -
user String No -
password String No -
query String Yes -
connection_check_timeout_sec Int No 30
partition_column String No -
partition_upper_bound Long No -
partition_lower_bound Long No -
partition_num Int No job parallelism
common-options No -

driver [string]

The jdbc class name used to connect to the remote data source, if you use MySQL the value is com.mysql.cj.jdbc.Driver. Warn: for license compliance, you have to provide MySQL JDBC driver yourself, e.g. copy mysql-connector-java-xxx.jar to $SEATNUNNEL_HOME/lib for Standalone.

user [string]

userName

password [string]

password

url [string]

The URL of the JDBC connection. Refer to a case: jdbc:postgresql://localhost/test

query [string]

Query statement

connection_check_timeout_sec [int]

The time in seconds to wait for the database operation used to validate the connection to complete.

partition_column [string]

The column name for parallelism's partition, only support numeric type.

partition_upper_bound [long]

The partition_column max value for scan, if not set SeaTunnel will query database get max value.

partition_lower_bound [long]

The partition_column min value for scan, if not set SeaTunnel will query database get min value.

partition_num [int]

The number of partition count, only support positive integer. default value is job parallelism

common options

Source plugin common parameters, please refer to Source Common Options for details.

tips

If partition_column is not set, it will run in single concurrency, and if partition_column is set, it will be executed in parallel according to the concurrency of tasks.

appendix

there are some reference value for params above.

datasource driver url maven
mysql com.mysql.cj.jdbc.Driver jdbc:mysql://localhost:3306/test https://mvnrepository.com/artifact/mysql/mysql-connector-java
postgresql org.postgresql.Driver jdbc:postgresql://localhost:5432/postgres https://mvnrepository.com/artifact/org.postgresql/postgresql
dm dm.jdbc.driver.DmDriver jdbc:dm://localhost:5236 https://mvnrepository.com/artifact/com.dameng/DmJdbcDriver18
phoenix org.apache.phoenix.queryserver.client.Driver jdbc:phoenix:thin:url=http://localhost:8765;serialization=PROTOBUF https://mvnrepository.com/artifact/com.aliyun.phoenix/ali-phoenix-shaded-thin-client
sqlserver com.microsoft.sqlserver.jdbc.SQLServerDriver jdbc:microsoft:sqlserver://localhost:1433 https://mvnrepository.com/artifact/com.microsoft.sqlserver/mssql-jdbc
oracle oracle.jdbc.OracleDriver jdbc:oracle:thin:@localhost:1521/xepdb1 https://mvnrepository.com/artifact/com.oracle.database.jdbc/ojdbc8
gbase8a com.gbase.jdbc.Driver jdbc:gbase://e2e_gbase8aDb:5258/test https://www.gbase8.cn/wp-content/uploads/2020/10/gbase-connector-java-8.3.81.53-build55.5.7-bin_min_mix.jar
starrocks com.mysql.cj.jdbc.Driver jdbc:mysql://localhost:3306/test https://mvnrepository.com/artifact/mysql/mysql-connector-java

Example

simple:

    Jdbc {
        url = "jdbc:mysql://localhost/test?serverTimezone=GMT%2b8"
        driver = "com.mysql.cj.jdbc.Driver"
        connection_check_timeout_sec = 100
        user = "root"
        password = "123456"
        query = "select * from type_bin"
    }

parallel:

    Jdbc {
        url = "jdbc:mysql://localhost/test?serverTimezone=GMT%2b8"
        driver = "com.mysql.cj.jdbc.Driver"
        connection_check_timeout_sec = 100
        user = "root"
        password = "123456"
        query = "select * from type_bin"
        partition_column = "id"
        partition_num = 10
    }

Changelog

2.2.0-beta 2022-09-26

  • Add ClickHouse Source Connector

2.3.0-beta 2022-10-20

  • [Feature] Support Phoenix JDBC Source (2499)
  • [Feature] Support SQL Server JDBC Source (2646)
  • [Feature] Support Oracle JDBC Source (2550)
  • [Feature] Support StarRocks JDBC Source (3060)
  • [Feature] Support GBase8a JDBC Source (3026)