Difference Between Triggers and Stored Procedures -


Triggers vs Stored Procedures

In a database, a trigger is a procedure (code segment) that is executed automatically when some specific events occur in a table/view. Among its other uses, triggers are mainly used for maintaining integrity in a database. A stored procedure is a method that can be used by applications accessing a relational database. Typically, stored procedures are used as a method for validating data and controlling access to a database.

What are Triggers?

A trigger is a procedure (code segment) that is executed automatically when some specific events occur in a table/view of a database. Among its other uses, triggers are mainly used for maintaining integrity in a database. Triggers are also used for enforcing business rules, auditing changes in the database and replicating data. Most common triggers are Data Manipulation Language (DML) triggers that are triggered when data is manipulated. Some database systems support non-data triggers, which are triggered when Data Definition Language (DDL) events occur. Some examples are triggers that are fired when tables are created, during commit or rollback operations occur, etc. These triggers can be especially used for auditing. Oracle database system supports schema level triggers (i.e. triggers fired when database schemas are modified) such as After Creation, Before Alter, After Alter, Before Drop, After Drop, etc. The four main types of triggers supported by Oracle are Row Level triggers, Column Level triggers, Each Row Type triggers and For Each Statement Type triggers.

What are Stored Procedures?

A stored procedure is a method that can be used by an application accessing a relational database. Typically, stored procedures are used as a method for validating data and controlling access to a database. If some data processing operation requires several SQL statements to be executed, such operations are implemented as stored procedures. When invoking a stored procedure, a CALL or EXECUTE statement has to be used. Stored procedures can return results (for example results from the SELECT statements). These results can be used by other stored procedures or by applications. Languages that are used to write stored procedures typically support control structures such as if, while, for, etc. Depending on the database system used, several languages can be used to implement stored procedures (e.g. PL/SQL and java in Oracle, T-SQL (Transact-SQL) and .NET Framework in Microsoft SQL Server). Furthermore, MySQL uses its own stored procedures.

What is the difference between Triggers and Stored Procedures?

A trigger is a procedure (code segment) that is executed automatically when some specific events occur in a table/view of a database, while a stored procedure is a method that can be used by an application accessing a relational database. Triggers are executed automatically when the event that the trigger is supposed to respond to occurs. But to execute a stored procedure a specific CALL or EXECUTE statement has to be used. Debugging triggers can be harder and trickier than debugging stored procedures. Triggers are very useful when you want to make sure that something happens when a certain event occurs.

The key difference between trisomy and triploidy is that the trisomy is a condition that an organism is having an extra chromosome making the total as 47 while triploidy is a condition that an organism is having an entire extra set of chromosome making the total as 69. The human genome consists of a total of 46 chromosomes, and they exist in pairs. Hence, there are 23 chromosome pairs inside the human nucleus. Among these pairs, 22 are autosomes, which are responsible for somatic characteristics while one pair is sex chromosomes that are responsible for determining sex and sex-related characteristics. Furthermore, genetic information passes from parent to offspring during reproduction. For this purpose, the genome should be replicated and correctly pass into gametes. Sometimes, errors can happen in this process. These errors cause chromosomal aberrations or chromosome number changes. Aneuploidy and polyploidy are two types that change the chromosome number........ READ

Key Difference – Hydrogen Water vs Alkaline Water   Water is an abundant inorganic compound in earth’s crust. Around 71% of earth’s crust is covered with water, but only a little percentage of it is drinkable. However, water is an essential component for life on earth since living beings such as plants, animals, microorganisms, and humans need water for functioning. Hydrogen water and alkaline water are two types of modified water forms. The key difference between hydrogen water and alkaline water is that hydrogen water has a low pH value whereas alkaline water has a higher pH than drinking water. CONTENTS 1. Overview and Key Difference 2. What is Hydrogen Water  3. What is Alkaline Water 4. Similarities Between Hydrogen Water and Alkaline Water 5. Side by Side Comparison – Hydrogen Water vs Alkaline Water in Tabular Form 6. Summary What is Hydrogen Water ? Hydrogen water is water that contains.......READ

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