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How to view triggers in SQL Server management studio?
Triggers in SQL Server Management Studio. There are two types of triggers that can be created: DML (Data Manipulation Language) triggers and; DDL (Data Definition Language) triggers. The DML triggers are those that fire when a SQL statement tries to change the data of a given table or view. These can be created on tables and views.
When does a seek occur in SQL Server?
A Seek occurs when SQL Server knows where it needs to go and only grab specific items. This typically occurs when good filters on put in a query, such as where name = ‘Foo’.
What are two types of triggers in SQL?
There are two types of triggers that can be created: DDL (Data Definition Language) triggers. The DML triggers are those that fire when a SQL statement tries to change the data of a given table or view. These can be created on tables and views.
Which is better a scan or a seek?
A Scan is when SQL Server doesn’t know exactly where all of the data it needs is, or decided that the Scan would be more efficient than a Seek if enough of the data is selected. Seeks are typically faster since they are only grabbing a sub-section of the data, whereas Scans are selecting a majority of the data.
When does a SQL statement trigger a DDL?
On the other hand, DDL triggers fire when a SQL statement tries to change the physical structure of the database (i.e. create, alter or delete database objects). Additionally, there are DDL triggers that fire when there are changes to server objects (i.e. create, alter or drop linked servers or databases).
When does a DML statement trigger a trigger?
TRIGGER• What is a Trigger?A trigger is a block structure which is fired when a DML statements like Insert,Delete, Update is executed on a database table. A trigger is triggered automaticallywhen an associated DML statement is executed.•