- Why do we need triggers?
- Why stored procedure is better than query?
- What is the difference between stored procedure and query?
- Why we create procedures in SQL?
- Why you should not use stored procedures?
- Why we use stored procedure instead of inline query?
- Are stored procedure faster than queries?
- Will stored procedure improve performance?
- What is the advantage of stored procedure in SQL Server?
- What is the need of stored procedure in SQL?
- What are the advantages and disadvantages of stored procedures?
- What are the types of triggers?
- Why do we use stored procedures?
- Which is better function or stored procedure?
- What are the disadvantages of stored procedures?
Why do we need triggers?
Triggers help the database designer ensure certain actions, such as maintaining an audit file, are completed regardless of which program or user makes changes to the data.
The programs are called triggers since an event, such as adding a record to a table, fires their execution..
Why stored procedure is better than query?
The primary advantage to parameterized queries and stored procedures is that they don’t have to go through the compile process over and over again. Stored procedures also offer some additional security aspects. Ad hoc queries are just query strings passed to the server directly. They are compiled and stored in memory.
What is the difference between stored procedure and query?
query and stored procedure do the same thing but the difference is that a query should be compiled everytime the query is executed,while the stored procedure is in compiled form when executed first time. I f we use stored procedure we can avoid recompilation of the query.
Why we create procedures in SQL?
A SQL stored procedure (SP) is a collection SQL statements and sql command logic, which is compiled and stored on the database. … The main purpose of stored procedures to hide direct SQL queries from the code and improve performance of database operations such as select, update, and delete data.
Why you should not use stored procedures?
Stored procedures require you to reinvent wheels. … Very often, you will end up reinventing these wheels using copy and paste code, which again is a bad practice. Stored procedures are difficult to unit test. With an ORM, you can mock your database code so as to be able to test your business logic quickly.
Why we use stored procedure instead of inline query?
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.
Are stored procedure faster than queries?
Always stored procedure is faster than general query. Reasons for using stored procedures: Reduce network traffic — you have to send the SQL statement across the network. With sprocs, you can execute SQL in batches, which is also more efficient.
Will stored procedure improve performance?
Stored procedures improve database performance as they allow cached query plans to be reused. … In the absence of parameterized query plans, SQL server automatically detects parameters and generates cached query plans resulting in improved performance.
What is the advantage of stored procedure in SQL Server?
By grouping SQL statements, a stored procedure allows them to be executed with a single call. This minimizes the use of slow networks, reduces network traffic, and improves round-trip response time. OLTP applications, in particular, benefit because result set processing eliminates network bottlenecks.
What is the need of stored procedure in SQL?
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 are the advantages and disadvantages of stored procedures?
Testing of a logic which is encapsulated inside a stored procedure is very difficult. Any data errors in handling stored procedures are not generated until runtime….Portability –AdvantagesDisadvantagesIt is faster.It is difficult to debug.It is pre-compiled.Need expert developer, since difficult to write code.3 more rows•Jun 5, 2020
What are the types of triggers?
There are two types of triggers.BEFORE trigger: – This trigger is called before the execution of the DML statement. … After Trigger: – this trigger is called after once DML statement is executed. … Combination of triggers: – We can have combination of row, statement, BEFORE and AFTER triggers.
Why do we use stored procedures?
Following are the advantages of stored procedures: Since stored procedures are compiled and stored, whenever you call a procedure the response is quick. you can group all the required SQL statements in a procedure and execute them at once. Since procedures are stored on the database server which is faster than client.
Which is better 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.
What are the disadvantages of stored procedures?
-Disadvantages of the Stored procedure.A large number of Logical operations increase CPU usage.Difficult to Debug.Not easy to Develop and Maintain.Not designed for developing Complex or Flexible business logic.