- When should I use stored procedures?
- Which one is faster function or stored procedure?
- Which is better inline query or stored procedure?
- How do you make a stored procedure run faster in SQL Server?
- What is difference between stored procedure and function?
- What is Arithabort?
- Why is MySQL so bad?
- Why do we need stored procedure?
- What does a function return?
- How do I optimize a SQL stored procedure?
- What is parameter sniffing?
- Can a view call a stored procedure?
- What is a procedure?
- Why we use stored procedure instead of function?
- Why are triggers bad?
- Can we call procedure inside function?
- Can a stored procedure return a value?
- What is difference between inline query and stored procedure?
- Is stored procedure faster than query in MySQL?
- What does a stored procedure look like?
- Can a stored procedure return a table?
When should I use stored procedures?
When all the code is in a stored proc, it is far easier to refactor the database when needed.
Changes to logic are far easier to push as well.
It is also far far easier to performance tune and sooner or later performance tuning becomes necessary for most database applications..
Which one is faster function or stored procedure?
Stored Procedures can be fast, very fast, as they are pre-compiled. The optimiser does not have to work out the execution plan each time. A Stored Procedure will return results in a table form. Functions can be Scalar (returning a single result) or return Tabular data.
Which is better inline query or stored procedure?
Since stored procedure is saved on a database level, sharing of application logic between applications is easier than using libraries or APIs. It is easier to troubleshoot a stored procedure than inline query as we can isolate it. … Performance tuning is possible to do on stored procedure level.
How do you make a stored procedure run faster in SQL Server?
Specify column names instead of using * in SELECT statement. Try to avoid * … Avoid temp temporary table. Temporary tables usually increase a query’s complexity. … Create Proper Index. Proper indexing will improve the speed of the operations in the database.Use Join query instead of sub-query and co-related subquery.
What is difference between stored procedure and function?
A function has a return type and returns a value. A procedure does not have a return type. But it returns values using the OUT parameters.
What is Arithabort?
The ARITHABORT option should be set to ON when you are creating or changing indexes on computed columns or indexed views. Otherwise, the operation will fail and the SQL Server will return an error that lists all SET options that violate the required values.
Why is MySQL so bad?
The conception of MySQL being bad comes from what people say that it does not support foreign keys or transactions. This too is not (entirely) true. MySQL comes with several engines, and you can pick which engines you want for your database(s), or even use different engines in the same database for different tables.
Why do we need stored procedure?
Stored procedures provide improved performance because fewer calls need to be sent to the database. For example, if a stored procedure has four SQL statements in the code, then there only needs to be a single call to the database instead of four calls for each individual SQL statement.
What does a function return?
A return statement ends the execution of a function, and returns control to the calling function. Execution resumes in the calling function at the point immediately following the call. A return statement can return a value to the calling function. For more information, see Return type.
How do I optimize a SQL stored procedure?
SQL Server Stored Procedures Optimization TipsUse stored procedures instead of heavy-duty queries. … Include the SET NOCOUNT ON statement in your stored procedures to stop the message indicating the number of rows affected by a Transact-SQL statement. … Call stored procedures using their fully qualified name.More items…•
What is parameter sniffing?
Parameter Sniffing is the process of looking to the first passed parameters values when compiling the stored procedure in order to create an optimal execution plan that fits these parameters values and use it for all values.
Can a view call a stored procedure?
Well, you can’t use temp tables in a view (which would totally solve the problem, because temp tables rock). You can do the subqueries-to-temp table stuff in a stored procedure, but you can’t call a stored procedure from a view.
What is a procedure?
1a : a particular way of accomplishing something or of acting. b : a step in a procedure. 2a : a series of steps followed in a regular definite order legal procedure a surgical procedure. b : a set of instructions for a computer that has a name by which it can be called into action.
Why we use stored procedure instead of function?
Procedure allows SELECT as well as DML(INSERT/UPDATE/DELETE) statement in it whereas Function allows only SELECT statement in it. … Stored Procedures cannot be used in the SQL statements anywhere in the WHERE/HAVING/SELECT section whereas Function can be. Functions that return tables can be treated as another rowset.
Why are triggers bad?
In my experience they are evil, because they can result in surprising side effects, and are difficult to debug (especially when one trigger fires another). Often developers do not even think of looking if there is a trigger.
Can we call procedure inside function?
Because it is permitted to call procedure inside the function. … The function might be in scope of the procedure but not vice versa. Your procedure is doing something which is not allowed when we call a function in a query (such as issuing DML) and you are calling your function in a SELECT statement.
Can a stored procedure return a value?
Return values can be used within stored procedures to provide the stored procedure execution status to the calling program. You can create your own parameters that can be passed back to the calling program. By default, the successful execution of a stored procedure will return 0.
What is difference between inline query and stored procedure?
Since Stored procedures are stored in the server, only the name of Stored procedure is required to pass to the server. But in the case of inline queries , the complete query has to be passed to the server. So inline queries will increase network traffic when the queries are very large.
Is stored procedure faster than query in MySQL?
Stored procedures have many other benefits than speed, security being high on the list. … In MySQL or any other SQL server as MSSQL or Oracle, stored procedures increase dramatically the speed of the queries involved because this are already compiled.
What does a stored procedure look like?
A stored procedure is typically treated like other database objects and controlled through server security mechanism. In a DBMS, a stored procedure is a set of SQL statements with an assigned name that’s stored in the database in compiled form so that it can be shared by a number of programs.
Can a stored procedure return a table?
Every stored procedure can return an integer value known as the execution status value or return code. If you still want a table returned from the SP, you’ll either have to work the record set returned from a SELECT within the SP or tie into an OUTPUT variable that passes an XML datatype.