SQL Server to Tunnel

BladePipe supports data replication from SQL Server to Tunnel. View supported migration, sync, verification, and connector capabilities.

Target DataSource：

Tunnel

Connection

Function	Description
Schema Migration	If the target schema does not exist, BladePipe will automatically generate and execute CREATE statements based on the source metadata and the mapping rule.
Full Data Migration	Migrate data by sequentially scanning data in tables and writing it in batches to the target database.
Incremental Data Sync	Sync of common DML like INSERT, UPDATE, DELETE is supported. UPDATE and DELETE for tables without primary keys are not synced by default (manual selection required).
Table Name Mapping	Support the mapping rules, namely, keeping the name the same as that in Source, converting the text to lowercase, converting the text to uppercase, truncating the name by "_digit" suffix.
DDL Sync	Supports ALTER TABLE ADD COLUMN and DROP COLUMN.

Function	Description
Custom Code	For more information, see Custom Code Processing, Debug Custom Code and Logging in Custom Code.
Data Filtering Conditions	Support data filtering using WHERE conditions, with SQL-92 as the SQL language. For more information, see Data Filtering.
Setting Target Primary Key	Change the primary key to another field to facilitate data aggregation and other operations.

Title	Details
Cross-Internet Data Synchronization	See Cross-Internet Data Synchronization

Prerequisite	Description
Permissions for Account	See Required Permissions for SQL Server.
Enable SQL Server CDC	Run: exec [your_database].sys.sp_cdc_enable_db

Parameter	Description
maxTxsPerIteration	Maximum number of transactions to scan each time in incremental data sync.
scanParallel	Full data stage: The number of tables to be scanned in parallel. Incremental stage: The number of CDC tables to be scanned in parallel.
eventStoreSize	Size of the cache for parsed incremental events.

Tips: To modify the general parameters, see General Parameters and Functions.

Prerequisite	Description
Port Preparation	For BladePipe (Docker version), modify the docker-compose.yml port mappings before installing/upgrading after extraction, and open relevant ECS security group ports for remote connection.

Parameter	Description
writeParallel	Concurrency level for writing on the other end, significantly impacts migration or synchronization performance.
batchWriteSize	The maximum data size of a single message.
deCycle	Prevent circular data replication.
deCycleFlag	Default marker to prevent circular data replication.
protocol	Protocol for data transfer in Tunnel. Support HTTP currently.
uriPrefix	URI prefix for Tunnel data sources.
contentCompressType	Data compression form for Tunnel data sources. Support DeInflater / GZIP currently.
dbs	Definition of the data source schema.
printDataInLog	Enable to print key data to logs for troubleshooting. Enabling this feature may impact performance and data security.
schemaFormat	Type of Value Schema.
printCustomCodeDebugLog	Print custom code DEBUG logs (Note that it will print data before and after processing, which may increase disk usage and impact sync performance). This parameter takes effect dynamically and DataJob restart is not required.

Tips: To modify the general parameters, see General Parameters and Functions.