From SQL Server to Snowflake using Azure Blob Storage
Configure your LakeXpress data pipeline with the selected components
LakeXpress Orchestrator
- Manages end-to-end pipelines
- Orchestrates FastBCP extracts with retries & logging
- Handles incremental sync and schema-aware metadata

./LakeXpress config create \
-a data/ds_credentials.json \
--log_db_auth_id log_db_ms \
--source_db_auth_id datasource_sqlserver_01 \
--source_db_name sales \
--source_schema_name "sales,dim" \
--fastbcp_dir_path ./FastBCP_linux-x64/latest/ \
--fastbcp_p 2 \
--n_jobs 4 \
--target_storage_id abs_lake_prd \
--generate_metadata \
--sub_path /ingest/bronze \
--incremental_table "sales.orders:o_orderdate:date" \
--incremental_table "sales.lineitem:l_shipdate:date" \
--publish_method internal \
--publish_target snowflake_tgt
# First sync - full load
./LakeXpress sync
# Subsequent syncs - incremental updates (much faster!)
./LakeXpress syncSource - SQL Server
Microsoft SQL Server is a leading enterprise data platform. LakeXpress leverages FastBCP's advanced techniques to extract SQL Server data with maximum efficiency.
Features:
- •Native SQL Server driver via FastBCP
- •Support for SQL Server-specific data types
- •High-performance parallel extraction
- •Optimized for Windows and Linux environments
Format - Apache Parquet
Parquet is the industry-standard columnar file format for analytics. LakeXpress uses FastBCP to extract data from source databases and convert it to Parquet format, ensuring optimal compression, query performance, and compatibility with all modern data platforms.
Advantages:
- •Columnar format optimized for analytics
- •Efficient compression (typically 3-10x)
- •Schema evolution support
- •Predicate pushdown for fast queries
- •Universal compatibility with cloud platforms
- •Preserves data types and precision
Cloud Stage - Azure Blob Storage
Azure Blob Storage is Microsoft's object storage solution for the cloud. LakeXpress uses Azure Blob as an intermediate staging layer for Parquet files with high performance and reliability.
Features:
- •Massive scalability
- •Multiple access tiers (Hot, Cool, Archive)
- •Integrated with Azure ecosystem
- •Built-in encryption and security
- •Lifecycle management policies
Destination - Snowflake
Snowflake is a cloud data platform built for analytics. LakeXpress publishes Parquet files from cloud storage directly into Snowflake using COPY INTO commands for optimal performance.
Publishing method:
COPY INTO with MATCH_BY_COLUMN_NAME
Features:
- •Direct COPY FROM stage (S3, Azure, GCS)
- •Automatic schema detection from Parquet
- •Zero-copy cloning capabilities
- •Automatic clustering and optimization
- •Support for semi-structured data

