Last post Mar 15, 2018 03:23 AM by X.Daisy
Mar 14, 2018 07:11 AM|jayakumarvinayagam|LINK
I recently went through to learn repository based design to access data layer. would you someone help me what exactly below keyword contribution and when we use this approach(Performance)
Mar 15, 2018 03:23 AM|X.Daisy|LINK
Is an expression that evaluates to TRUE, FALSE, or UNKNOWN. Predicates are used in the search condition of WHERE clauses and HAVING clauses, the join conditions of FROM clauses, and other constructs where a Boolean value is required.
CONTAINS, FREETEXT, IS NULL/IS NOT NULL, In, Exists, Between, Like, All, any...
Is a combination of symbols and operators that the SQL Server Database Engine evaluates to obtain a single data value. Simple expressions can be a single constant, variable, column, or scalar function. Operators can be used to join two or more simple
expressions into a complex expression.
Expression tree as name suggests is nothing but expressions arranged in a tree-like data structure.