minor update

Author: jovanpop-msft

articles/sql-database/sql-database-service-tiers-dtu.md

@@ -73,7 +73,7 @@ It is important to understand that all benchmarks are representative and indicat
 The benchmark and its methodology are described in more detail below.
 
 ### Benchmark summary
-ASDB measures the performance of a mix of basic database operations which occur most frequently in online transaction processing (OLTP) workloads. Although the benchmark is designed with cloud computing in mind, the database schema, data population, and transactions have been designed to be broadly representative of the basic elements most commonly used in OLTP workloads.
+ASDB measures the performance of a mix of basic database operations that occur most frequently in online transaction processing (OLTP) workloads. Although the benchmark is designed with cloud computing in mind, the database schema, data population, and transactions have been designed to be broadly representative of the basic elements most commonly used in OLTP workloads.
 
 ### Schema
 The schema is designed to have enough variety and complexity to support a broad range of operations. The benchmark runs against a database comprised of six tables. The tables fall into three categories: fixed-size, scaling, and growing. There are two fixed-size tables; three scaling tables; and one growing table. Fixed-size tables have a constant number of rows. Scaling tables have a cardinality that is proportional to database performance, but doesn’t change during the benchmark. The growing table is sized like a scaling table on initial load, but then the cardinality changes in the course of running the benchmark as rows are inserted and deleted.