Can you put a trigger on a view?

Can you put a trigger on a view?

Yes, you can create triggers on views. (Since at least SQL Server 2000.) If you create a trigger on a view, it won’t fire on inserts to the base table. If you want something to happen when you insert data into a base table, create a trigger on the base table.

Can triggers update views?

You can use the trigger action to update the tables underlying the view, in some cases updating an otherwise “non-updatable” view.

What happens if a trigger fails in SQL Server?

If the trigger fails, the transaction is rolled back. Identities are not generated/locked by the transaction. If they were, if you had a transaction that took a long time and inserted a new record (requiring a new identity value), then that transaction would stop all other inserts into the table.

How do I view triggers in SQL?

To view database level triggers, Login to the server using SQL Server management studio and navigate to the database. Expand the database and navigate to Programmability -> Database Triggers. To view triggers at the server level, Login to Server using SSMS and navigate to Server Objects and then Triggers folder.

Where are triggers stored in mysql?

Where are triggers stored? Triggers are stored in the mysql. triggers system table, which is part of the data dictionary.

How do I get all trigger scripts in SQL Server?

Database-> Tasks-> Generate Scripts -> Next -> Next On Choose Script Options UI, under Table/View Options Heading, set Script Triggers to True.

What are examples of triggers?

Some examples of common triggers are:

  • the anniversary dates of losses or trauma.
  • frightening news events.
  • too much to do, feeling overwhelmed.
  • family friction.
  • the end of a relationship.
  • spending too much time alone.
  • being judged, criticized, teased, or put down.
  • financial problems, getting a big bill.

How can I see all databases in SQL Server?

Using SQL Server Management Studio

  1. In Object Explorer, connect to an instance of the SQL Server Database Engine, and then expand that instance.
  2. To see a list of all databases on the instance, expand Databases.

How can I see all schemas in MySQL?

Show MySQL Databases The most common way to get a list of the MySQL databases is by using the mysql client to connect to the MySQL server and run the SHOW DATABASES command. If you haven’t set a password for your MySQL user you can omit the -p switch.

How do I know the size of my schema?

select OWNER,sum(bytes)/1024/1024/1000 “SIZE_IN_GB” from dba_segments group by owner order by owner; Share via: Facebook.

How do I view a schema in SQL Developer?

The option is available under File -> Data Modeler -> Import -> Data Dictionary. After choosing the connection to log in, the list of schemas can be selected. Following that would be a screen to select tables, views, and any other objects.

How do I show all schemas in SQL?

Query below lists all schemas in SQL Server database. Schemas include default db_* , sys, information_schema and guest schemas. If you want to list user only schemas use this script.

What is difference between database and schema?

A database is the main container, it contains the data and log files, and all the schemas within it. You always back up a database, it is a discrete unit on its own. Schemas are like folders within a database, and are mainly used to group logical objects together, which leads to ease of setting permissions by schema.

How do I give permission to schema in SQL Server?

Create a schema called [exec] for all of the sProcs (and/or possibly any security Views). Make sure that the owner of this schema has access to the [data] schema (this is easy if you make dbo the owner of this schema). Create a new db-Role called “Users” and give it EXECUTE access to the [exec] schema.

How do I find the default schema in SQL Server?

SELECT DB_NAME() AS [database] ,[name] ,[type_desc] ,[default_schema_name] FROM [sys]. [database_principals] WHERE [type] IN (‘U’, ‘G’) –AND [default_schema_name] <> ‘dbo’; If not set to dbo and someone create an object without specifying a schema identifier, a new schema is created with his/her windows credentials.

How do I change my default schema?

In order to set the default schema for a Windows Group, open SQL Server Management Studio, navigate to Security > Logins, right click on the Windows Group that you want to change and choose Properties. The below window will then open.

What is the default schema in MySQL?

When you first open MySQL Workbench a default schema, mydb appears as the leftmost tab of the Physical Schemas section of MySQL Workbench as the following figure shows. You can begin designing a database by using this default schema. To change the name of the default schema, double-click the schema tab.

How do I find the schema owner in SQL Server?

How to find a SQL schema owner name

  1. use msdb.
  2. go.
  3. select schema_name(schema_id) as schemanames,
  4. user_name(s.principal_id) as usernames.
  5. from sys.schemas As s.
  6. SELECT schema_name, schema_owner.

How do I check schema permissions in SQL Server?

In SSMS, if you follow the path [Database] > Security > Schemas and view any schema properties, you have a tab “permissions” that list all the permissions that every user have on that specific schema.

Should I use DBO schema?

In fact, for simplicity sake, I say always use dbo unless your security requirements stipulate otherwise. Of course, you can always do it for just organizational purposes as well. If anything, dbo should be avoided because it’s the default for SQL Server, it’s also not descriptive at all.

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