Sink data from RisingWave to SQL Server

This guide describes how to sink data from RisingWave to Microsoft SQL Server.

You can test out this process on your own device by using the sqlserver_sink.slt demo in the integration_test directory of the RisingWave repository.

Prerequisites

Before sinking data from RisingWave to SQL Server, please ensure the following:

• The SQL Server table you want to sink to is accessible from RisingWave.
• You have an upstream materialized view or table in RisingWave that you can sink data from.

Syntax

CREATE SINK [ IF NOT EXISTS ] sink_name
[FROM sink_from | AS select_query]
WITH (
   connector='sqlserver',
   connector_parameter = 'value', ...
);

Parameters

Parameter Names	Description
type	Required. Allowed values: append-only and upsert.
force_append_only	Optional. If true, forces the sink to be append-only, even if it cannot be.
primary_key	Conditional. The primary keys of the sink. Use ',' to delimit the primary key columns. Primary keys are required for upsert sinks.
sqlserver.host	Required. The SQL Server host.
sqlserver.port	Required. The SQL Server port.
sqlserver.user	Required. The user for SQL Server access.
sqlserver.password	Required. The password for SQL Server access.
sqlserver.database	Required. The SQL Server database you want to sink to.
sqlserver.table	Required. The SQL Server table you want to sink to.

Data type mapping

The following table shows the corresponding data types between RisingWave and SQL Server that should be specified when creating a sink. For details on native RisingWave data types, see Overview of data types.

SQL Server type	RisingWave type
bit	boolean
smallint	smallint
int	integer
bigint	bigint
float(24)	real
float(53)	double
decimal	decimal
date	date
nvarchar	varchar
time	time
datetime2	time without time zone
bigint	timestamp without time zone
No support	interval
No support	struct
No support	array
varbinary	bytea
No support	jsonb
No support	serial