across data sources, simpli‐ fying the data aggregation from different data locations. Da ta En cr yp ti on Data Encryption is a basic way to ensure data security. ShardingSphere provides a com‐ D e f a u l t V a l u e * wor ker ‐id (?) l o n g The unique ID for working machine 0 ma x‐t ole rat e‐t ime ‐ di ffe ren ce‐ mil lis eco nds (?) l o n g The max tolerate time for different server’s

across data sources, simpli‐ fying the data aggregation from different data locations. Da ta En cr yp ti on Data Encryption is a basic way to ensure data security. ShardingSphere provides a com‐ D e f a u l t V a l u e * wor ker ‐id (?) l o n g The unique ID for working machine 0 ma x‐t ole rat e‐t ime ‐ di ffe ren ce‐ mil lis eco nds (?) l o n g The max tolerate time for different server’s