Why are there so many global variables in SQL?

Why are there so many global variables in SQL?

SQL Server provides a massive number of global variables, which are very effective to use in our regular Transact-SQL. Global variables represent a special type of variable. The server always maintain the values of these variables. All the global variables represent information specific to the server or a current user session.

How to declare a list in SQL Server?

Alternatively if you don’t have comma-separated string as input, You can try Table variable OR TableType Or Temp table like: INSERT using LIST into Stored Procedure I’ve always found it easier to invert the test against the list in situations like this.

Is the querytraceon option supported in SQL Server?

The QUERYTRACEON option is only supported for Query Optimizer trace flags. For more information, see Trace Flags. Using this option will not return any error or warning if an unsupported trace flag number is used. If the specified trace flag is not one that affects a query execution plan, the option will be silently ignored.

Why do we use global variables in Java?

Global variables represent a special type of variable. The server always maintain the values of these variables. All the global variables represent information specific to the server or a current user session. Global variable names begin with a @@ prefix. You do not need to declare them, since the server constantly maintains them.

How to return value after insert in SQL Server?

This is how I use OUTPUT INSERTED, when inserting to a table that uses ID as identity column in SQL Server: You can append a select statement to your insert statement. Integer myInt = Insert into table1 (FName) values(‘Fred’); Select Scope_Identity(); This will return a value of the identity when executed scaler.

What happens if an error in Transact-SQL?

IF @@ERROR != 0 return causes an exit if an error occurs. Every Transact-SQL statement resets @@error, including print statements or if tests, so the status check must immediately follow the statement whose success is in question.