Transact-SQL reference for using DECLARE to define local variables for use in a batch or procedure. Variables are declared in the body of a batch or procedure with the DECLARE statement and are ...

In PL/SQL, the declaration section allows for declaring variables and cursors, playing a crucial role in creating efficient functions and procedures. The tutorial delves into the significance and ...

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 ...