SQL Server provides a number of global variables, which are very useful.The values of these variables is maintained by the server. All the global variables represent information specific to the server ...

This repository demonstrates a subtle SQL error involving the use of an undeclared variable within a SELECT statement. The bug manifests as either a database error or ...

1)They can be created at run time in Tempdb database. 2)DDL,DML statements like select,update which can be executed on regular tables can be done on temporary tables. They can have constraints and can ...

Initializing variables with DECLARE is one of the most flexible ways to set a variable value in SQL Data Warehouse. DECLARE @v int = 0 ; You can also use DECLARE to set more than one variable at a ...