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In Oracle Database, a table can have multiple triggers associated with it. However, each trigger can be of a specific type: row-level trigger (BEFORE or AFTER each row affected) or statement-level trigger (BEFORE or AFTER each SQL statement executed). It is important to manage triggers carefully to avoid any performance issues or conflicts.
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How many elememnts are in the periodic table?
There are either 118 or 117 elements in the peiodic table. it depends on the one that you are looking at.
How many cubical grains of ordinary table salt eqals one millimeter?
It would take about 1,000 grains of ordinary table salt to equal one cubic centimeter or one milliliter.
Where can one view bronze table lamps?
There are many places where one would be able to browse bronze table lamps. One would be able to browse these lamps on shopping sites such as Amazon or eBay.
When was Table for One created?
Table for One was created in 2006.
How many table spoons in one eighth of a cup?
The answer to "how many table spoons is in a cup?" is 16........The answer to "how many table spoons is in a cup?" is 16........The answer to "how many table spoons is in a cup?" is 16........
Why need trigger in sql server 2000?
Why not trigger in SQL Server 2000? I think you need to understand what the definition of a database trigger is in this case. A database trigger is simply code that the database system will trigger when a certain event occurs. The classic example is having a multi-table order system that has the order # in one table and parts ordered linked in a orderDetails table, with the order pointing to the product description in a separate table. So a useful trigger would be that when an order gets deleted from the order table, all the matching order detail rows in the orderDetails table get deleted. Hope this helps.
What are the components of relational database?
Table, index, trigger and column Table, index, trigger and column
What is a Trigger in MySQL Define different types of Trigger?
A trigger is a named database object that is associated with a table, and that activates when a particular event occurs for the table. Some uses for triggers are to perform checks of values to be inserted into a table or to perform calculations on values involved in an update. A trigger is associated with a table and is defined to activate when an INSERT,DELETE, or UPDATE statement for the table executes. A trigger can be set to activate either before or after the triggering statement. For example, you can have a trigger activate before each row that is deleted from a table or after each row that is updated. Sender : Yugant khokhar
What is triggers in plsql?
a trigger is user defined constraint. A trigger is code that executes based upon an event. A trigger is mostly used on a table and can execute before or after the event. The event that triggers act upon are inserts, updates and deletes on the table or rows in the table.
What are the Different types of relationship in a database?
There are mainly three types of relationships in database . These are One to One , One to Many , Many to Many. One to one relationship can be seen as relationship between husband and wife , one to many relationship can be seen as a relationship between a college and students.
What is meant by trigger in database?
Database trigger is a procedural code that occurs in response to an event of a table of a database. for ex if any row is added in employee table, new records should also be added in salaries table.
What relationship to use if you have one record in a table is related to many records in another table.?
One-to-many relationship
What is a trigger in oracle sql and what's is use in oracle?
A trigger is a piece of code that will be fired on a given event. So for example if a piece of software deletes a record in the customer table, you might use a trigger to delete records from other tables that are associated with that customer. Another example would be to write a log in a audit table, if someone changes the data in a table.
What are one to many and many to many Relationship in database?
Relationships happen between two tables. One to Many means that one objects (called tuples, or rows) of Table A is related to one or more objects in Table B. For example, if a doctor can work only in one hospital, and we have a table of hospitals and a table of doctors, Hospitals has a One to Many relationship with Doctors, because for each hospital you will have one or more doctors working at it. Many to Many means that for each object in Table A, one or more objects in Table B are associated, and viceversa. In the example, if doctors are allowed to work in different hospitals, the table Hospitals and the table Doctors have a Many to Many relationship. Now, how to implement this in a relationship DB, that is another question.
What trigger anger?
There are many things that trigger anger. It varies from person to person. For example: a dirty house may trigger anger in one person, and not bother another personal at all.
How many foreign keys can you have in one table?
one
Can You Write Trigger in Stored Procedures?
A trigger is a stored procedure. It is a special stored procedure that runs in response to some defined event, such as an insert into a table.
