PolarDB PostgreSQL Data Connection- FineDataLink Help Document

Last update: November 20, 2024

Overview

Version

FineDataLink Version	Functional Change
4.1.11.3	Scheduled Task supported data reading from and writing into the PolarDB PostgreSQL database. Pipeline Task supported data writing to the PolarDB PostgreSQL database. Data Service supported data reading from the PolarDB PostgreSQL database. Data Management supported the PolarDB PostgreSQL database.

FineDataLink Version

Functional Change

4.1.11.3

Scheduled Task supported data reading from and writing into the PolarDB PostgreSQL database.

Pipeline Task supported data writing to the PolarDB PostgreSQL database.

Data Service supported data reading from the PolarDB PostgreSQL database.

Data Management supported the PolarDB PostgreSQL database.

Function Description

FineDataLink supports connection to the PolarDB PostgreSQL database for data reading and writing using scheduled tasks, data writing using pipeline tasks, publishing data services, and database table management.

Notes

1. You need to register related function points to use this data source. For details, see Registration Introduction.

2. The password that is used to access the database cannot contain the percent sign (%). Otherwise, the reindexing fails.

3. If a source table from a PolarDB PostgreSQL cluster contains fields of the DATETIME or TIMESTAMP format, the values of these fields are converted to the values in milliseconds. You must set the type of destination fields in your application to TIMESTAMP.

4. You cannot merge columns of source tables from different databases.

Preparation

Version and Driver

Download the driver package and upload it to FineDataLink. For the specific steps of uploading the driver package, see Driver Management.

Note:

The data connection URL must be in the format provided in the following table.

Supported Database Version	Driver Package	Data Connection URL Format
PolarDB Oracle 2.0	polardb-jdbc18-42.5.4.0.9.2.jar	jdbc:polardb2://Hostname:Port number/Database name?user =Username&password=Password
PolarDB PostgreSQL 14	polardb-jdbc18.jar	jdbc:polardb1://Hostname:Port number/Database name

After uploading the driver of PolarDB Oracle 2.0, select com.aliyun.polardb2.Driver, as shown in the following figure.

Connection Information Collection

IP address and port number of the database server
Database name
Username and password

Procedure

This section introduces how to configure the data connection to a PolarDB Oracle 2.0 database.

1. Log in to FineDataLink, choose System Management > Data Connection > Data Connection Management, and choose Create > Data Connection, as shown in the following figure.

Note:

If you are not the admin, you can configure data connections only after the admin assigns you permission on Data Connection under Permission Management > System Management. For details, see Data Connection Management Permission.

2. Find the PolarDB PostgreSQL icon, as shown in the following figure.

3. Fill in the connection information. Click Custom, and select the uploaded driver mentioned in the "Version and Driver" section.

4. Click Test Connection. If the connection is successful, click Save to save the configuration.