# 02_sparkConnector2StarRocks
## Description
- Read StarRocks table via spark-connector
- ETL in Spark: Explode data to multiple lines
- Write results into another StarRocks table
### DataFlow
> StarRocks(bitmap table) -> spark-connector -> sparkSql ETL -> StarRocks(uid details table)
## Preparations
### prepare datas
> - demo2 re-use the data in demo1
> - uv field in demo1_spark_tb0 is bitmap type（refer to [01_sparkStreaming2StarRocks](./01_sparkStreaming2StarRocks.md) ）,
> - convert bitmap type to string_list and sink to StarRocks table demo1_spark_tb1
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