Convert(int,sys.fn_sqlvarbasetostr(hashbytes('md5','1455985476'))) Today
: Selecting a deterministic but seemingly random subset of rows (e.g., WHERE ABS(HashConvert) % 10 = 0 for a 10% sample).
: This generates a 128-bit MD5 hash of the input string, returned as a varbinary value. : Selecting a deterministic but seemingly random subset
: Creating a non-obvious integer ID from a sensitive string. : Selecting a deterministic but seemingly random subset
: Distributing data rows into different "buckets" or shards by hashing a unique ID. : Selecting a deterministic but seemingly random subset
The SQL expression you provided is a specific method used in SQL Server to generate a or "sharding key" from a string value (in this case, the string '1455985476' ). Breaking Down the Code
