A combination of symbols and operators that the [!INCLUDE ssDEnoversion] evaluates to obtain a single data value. Simple expressions can be a single constant, variable, column, or scalar function.

Learn the differences between scalar and table-valued functions in T-SQL and how to use them for better query performance and readability.

Expressions (Transact-SQL) [!INCLUDE sql-asdb-asdbmi-asa-pdw] Is a combination of symbols and operators that the [!INCLUDE ssDEnoversion] evaluates to obtain a single data value. Simple expressions ...