Table Variables
What is Table Variables Table variables like variable, its creating as variable like DECLARE statement. Table variable table’s schema create in tempdb database and data store in Memory and its name start with hash...
Monthly Archive: August 2019
Local temp table and Global temp table
What is Local temp table and Global temp table Temp tables are like a physical table but it’s always creating in tempdb database and its name start with hash (#), It’s automatically drop when...
Common table Expression (CTE)
What is Common table Expression Common table expression (CTE) is a temporary result set and store the result set like normal view that can be use within a SELECT, INSERT, UPDATE, or DELETE statement....
Table Type and Table Valued Parameters
What is User-Defined Table Types User-Defined Table Types (UDTTs) is a kind of user defined data type its can be pass as a parameter in procedure where we need to pass multiple rows and...
Correlated and Subqueries
What is SQL Query SQL is a Standard Query Language for storing, manipulating and retrieving data in databases. SQL is a programming language(Query programing language) like PHP, Java, .net etc language use for application...
Derived Tables – Sql server
Derived Tables are similar to table variables it’s exist in memory only many deferent is table variable need to declare and derived table always create within a select statements, its also called to Subsquery....
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